Lb7 bad ficm symptoms

Dec 12, 2020 · Water pump failure is a relatively common weak point on Duramax trucks. While the seal issues found on LB7 trucks have been largely solved, the LLY Duramax can still suffer from water pump failure. Over time and at higher mileage, the seals in the factory water pumps can fail. This frequently occurs after 80-100,000 miles. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs P0201, P0204, P0206, P0207 will set, along with DTC P1261.If you remove the little window on the ficm, you will see the connection studs. If you see 4 bolts then you have the updated style and you can use the above part number. If you see 7 bolts then you will need to send it out for repair. I think 2003 and some very early 2004s have the 7 bolt. So most likely you have the 4 bolt.If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... Aug 02, 2017 · At the FICM in connector 1 its terminal 5 and in connector 2 it's terminal 119. They are both pink wires. As far as 45-99 ohms, that's shorted and can easily blow a fuse. Make sure the wires are not rubbing on the bracket by the alternator close to the FICM. Christopher. 9mo 9mo. LB7 FICM should make 96 volts running. Aug 05, 2020 · LB7 Faulty Fuel Filter Housing Symptoms Fuel pump loses prime making the engine hard start Low fuel rail engine codes Engine misfires, shaky idling, performance issues Your two replacement options are either to buy a new head assembly or simply buy a rebuild kit and replace the o-rings, gaskets, bolts, etc. Discussion Starter · #1 · Feb 2, 2014 I have a 2004 lb7 that I put injectors in a while ago and I have a miss that happens when the engine is idling while transmission is in gear and truck is creeping about walking speed. It does it hot or cold. It doesn't do it in neutral or drive while not moving. No smoke black or white while hot or cold.Nov 30, 2018 · Runs like tractor.. ECM, TCM, FICM codes”. So what are these codes or is this a guessing game. U**** codes communications problem within the CAN (Controller Area Network). The CAN network malfunction 3 possible causes: CAN connector is damaged or is disconnected. CAN communication line is open, shorted to ground or to power. Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows Apr 28, 2010 · My Duramax LB7 has been smoking white smoke at idle, constant flow every time I stop the truck. You can almost feel the Idle not being very smooth on the truck as if the Fuel Pressure Regulator was not working properly. Now a few weeks ago I had thrown the FPR Code p0089 (while it was smoking at idle). Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... Nov 24, 2018 · One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat. The solenoid style Bosch units found in the LB7 employed a non-hardened internal ball seat to seal the ... Nov 05, 2020 · Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model. Dec 12, 2020 · Water pump failure is a relatively common weak point on Duramax trucks. While the seal issues found on LB7 trucks have been largely solved, the LLY Duramax can still suffer from water pump failure. Over time and at higher mileage, the seals in the factory water pumps can fail. This frequently occurs after 80-100,000 miles. There are a couple of symtoms that usually lead to a bad FICM. First would be a hard start. If the truck cranks long than normal and then starts and runs rough, the FICM is one of the first things we check. Check the Trouble Codes First: If you have a FICM performance code then move to the voltage check below. Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. connecticut corgi breeders. ... waterfront homes for sale in usa; bridgend growing communities; high quality render settings 3ds max vray 5 2001 lb7. 29,000 original miles. Completely stock. Last ran 6 weeks ago no problems except had to crank longer than normal before it started. Thought to be to week batteries. Went to start it last week and no go. 2001 lb7. 29,000 original miles. Completely stock. Last ran 6 weeks ago no problems except had to crank longer than normal before it started. Thought to be to week batteries. Went to start it last week and no go. Nov 30, 2018 · Runs like tractor.. ECM, TCM, FICM codes”. So what are these codes or is this a guessing game. U**** codes communications problem within the CAN (Controller Area Network). The CAN network malfunction 3 possible causes: CAN connector is damaged or is disconnected. CAN communication line is open, shorted to ground or to power. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors A low voltage ficm can cause less than perfect combustion within the engine. This can lead to poor performance and poor fuel economy. You can encounter hard starts and slow running when the engine is cold. 4. Hard Start One of the common symptoms that usually indicates a bad Ficm is a hard start.Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. duo therm 57912 Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs P0201, P0204, P0206, P0207 will set, along with DTC P1261.LB7 Faulty Fuel Filter Housing Symptoms. Fuel pump loses prime making the engine hard start. Low fuel rail engine codes. Engine misfires, shaky idling, performance issues. Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... Jun 23, 2022 · Fuses all good also. So my question is could it be a bad FICM. Could the FICM Cause the truck to just crank for a short second like 4 seconds and just stop on it own and not fire. NOTE: I had no codes no problems nothing before changing injectors other then the fuel in oil problem. After injector change is when I got codes. The 5 Most Common LB7 Duramax Engine Problems Fuel Injector Failure Water Pump Failure Fuel Filter Housing O-ring Leaks Blown Head Gasket Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7's:Feb 15, 2015 · marine4x4. I have been diagnosing a no run/ sometimes running rough condition with my LB7 which is mostly stock other than bolt ons. Codes are P0201 through to P0208 for all 8 injectors, P1261, P1262, P0370, and P0335. I used the GM diagnostic tree for P0201 and got to step 19. that says to check for ignition voltage on the ignition circuit for ... Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... briggs and stratton 500e series 140cc parts manual. auto hold volkswagen Nov 24, 2018 · One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat. The solenoid style Bosch units found in the LB7 employed a non-hardened internal ball seat to seal the ... Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... Dec 12, 2020 · Water pump failure is a relatively common weak point on Duramax trucks. While the seal issues found on LB7 trucks have been largely solved, the LLY Duramax can still suffer from water pump failure. Over time and at higher mileage, the seals in the factory water pumps can fail. This frequently occurs after 80-100,000 miles. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Jun 06, 2001 · O.k.,since the U1800 has been there a few times and the pressure control code as well this does sound like a fault with the FICM itself.Make sure none of the wiring leading to and at the FICM is damaged needing repaired and if this is all found to be o.k. the FICM will need replaced. Thanks Pete Apr 28, 2010 · My Duramax LB7 has been smoking white smoke at idle, constant flow every time I stop the truck. You can almost feel the Idle not being very smooth on the truck as if the Fuel Pressure Regulator was not working properly. Now a few weeks ago I had thrown the FPR Code p0089 (while it was smoking at idle). iller arasi mesafe hesaplama Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Symptoms of Failing Duramax Fuel Injectors. If you think your common rail injectors are failing, there's a few symptoms that you can look out for. These include: Excessive Smoke. Power Loss. Rough Idle. Fuel in Oil. High Return Fuel. No Start. Nov 05, 2020 · Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model. 2001 lb7. 29,000 original miles. Completely stock. Last ran 6 weeks ago no problems except had to crank longer than normal before it started. Thought to be to week batteries. Went to start it last week and no go. Oct 04, 2010 · a buddy has an 04 lb7. originally it would start hard cold and the not restart hot. progressed to spraying either cold and no start hot. now no start with either hot/ cold anything. truck has 93k on it but extremely high hours almost 5000 (mine with 250k only has like 6500 hours) it has original injectors, completely stock, new ... Nov 05, 2020 · Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model. The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once. Injector replacement on the LB7 truck is rather labor intensive and just changing one is usually not worth the risk for the labor costs.Jan 10, 2018 · Injectors that have a poor cylinder power contribution or a noise or smoke change when canceled will also need to be replaced and are likely to cause low rail pressure during cranking. Balance Rates, when checked hot in drive after a hard test drive, should indicate bad injectors. Fits 2001-2004 Chevy / GMC 2500HD / 3500HD LB7. NOTE: Before replacing a FICM for an injector related fault code check and make sure there is not an injector or injector related circuit fault. One Year Warranty, with 2 Year Warranty Option. Dec 16, 2010 · [Archive] 02 duramax help LB7 GM Duramax ... I would say your FPRV is bad but your .... Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once. Injector replacement on the LB7 truck is rather labor intensive and just changing one is usually not worth the risk for the labor costs.http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once. Injector replacement on the LB7 truck is rather labor intensive and just changing one is usually not worth the risk for the labor costs.Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows connecticut corgi breeders. ... waterfront homes for sale in usa; bridgend growing communities; high quality render settings 3ds max vray 5 If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Aug 05, 2020 · LB7 Faulty Fuel Filter Housing Symptoms Fuel pump loses prime making the engine hard start Low fuel rail engine codes Engine misfires, shaky idling, performance issues Your two replacement options are either to buy a new head assembly or simply buy a rebuild kit and replace the o-rings, gaskets, bolts, etc. Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. Oct 04, 2010 · a buddy has an 04 lb7. originally it would start hard cold and the not restart hot. progressed to spraying either cold and no start hot. now no start with either hot/ cold anything. truck has 93k on it but extremely high hours almost 5000 (mine with 250k only has like 6500 hours) it has original injectors, completely stock, new ... Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Sep 03, 2010 · Registered. 2005 duramax cclb edge cts2 egr delete ats transmission 5” straight pipe 38” tires cognito lift. Joined Aug 9, 2021. 8 Posts. #14 · Sep 11, 2022. Yes. the p0642 it will run then the dic low oil pressure comes on and goes crazy. Yesterday the truck would run great up to about 45mph the crap out on me, shake and rattle then die. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Symptoms of Failing Duramax Fuel Injectors. If you think your common rail injectors are failing, there's a few symptoms that you can look out for. These include: Excessive Smoke. Power Loss. Rough Idle. Fuel in Oil. High Return Fuel. No Start. Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Shop with Blessed Performance if you want even more power & higher performance from your FICM? 58V upgrade provides better overall power & improves cold starts. Toggle menu. 18005772698. ... 2001-2004 6.6L LB7 Duramax Diesel. All 2001-2004 6.6L LB7 Duramax Diesel; Air Intake Systems; ... Nov 05, 2020 · Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. A low voltage ficm can cause less than perfect combustion within the engine. This can lead to poor performance and poor fuel economy. You can encounter hard starts and slow running when the engine is cold. 4. Hard Start One of the common symptoms that usually indicates a bad Ficm is a hard start.May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. May 25, 2013 · The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs ... 2011 bobcat 3400 diesel utv Jan 10, 2018 · Injectors that have a poor cylinder power contribution or a noise or smoke change when canceled will also need to be replaced and are likely to cause low rail pressure during cranking. Balance Rates, when checked hot in drive after a hard test drive, should indicate bad injectors. May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Fits 2001-2004 Chevy / GMC 2500HD / 3500HD LB7. NOTE: Before replacing a FICM for an injector related fault code check and make sure there is not an injector or injector related circuit fault. One Year Warranty, with 2 Year Warranty Option. Dec 16, 2010 · [Archive] 02 duramax help LB7 GM Duramax ... I would say your FPRV is bad but your .... How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... Mar 29, 2017 · The example below shows a 2002 LB7 engine cranking over with the ignition relay unplugged. Note that the fuel rail pressure is at 24,053 psi. As stated previously, the fuel pressure with the ... May 25, 2013 · The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs ... How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... 1. Excessive fuel restriction, check or change fuel filter 2. Use vacuum gauge, check the suction, you should have no more than 5 inches Hg at WOT (wide open throttle) or 7-8 inches Hg under load. If you have too much suction, after changing the filter, the restriction could also be the sock in the tank. briggs and stratton 500e series 140cc parts manual. auto hold volkswagen Dec 12, 2020 · Water pump failure is a relatively common weak point on Duramax trucks. While the seal issues found on LB7 trucks have been largely solved, the LLY Duramax can still suffer from water pump failure. Over time and at higher mileage, the seals in the factory water pumps can fail. This frequently occurs after 80-100,000 miles. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Jan 10, 2018 · Injectors that have a poor cylinder power contribution or a noise or smoke change when canceled will also need to be replaced and are likely to cause low rail pressure during cranking. Balance Rates, when checked hot in drive after a hard test drive, should indicate bad injectors. http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... LB7 Injector Symptoms + Diagnosis. The truth is you could toss a coin and have a fair chance of deciding that your LB7 needs a set of injectors, but there is of course a very scientific way to determine which ones are failing. The first visual clue a driver will notice will be excessive smoke from the tail pipe at idle.Dec 12, 2020 · Water pump failure is a relatively common weak point on Duramax trucks. While the seal issues found on LB7 trucks have been largely solved, the LLY Duramax can still suffer from water pump failure. Over time and at higher mileage, the seals in the factory water pumps can fail. This frequently occurs after 80-100,000 miles. Nov 05, 2020 · Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. Mar 29, 2017 · The example below shows a 2002 LB7 engine cranking over with the ignition relay unplugged. Note that the fuel rail pressure is at 24,053 psi. As stated previously, the fuel pressure with the ... These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... Jun 23, 2022 · Fuses all good also. So my question is could it be a bad FICM. Could the FICM Cause the truck to just crank for a short second like 4 seconds and just stop on it own and not fire. NOTE: I had no codes no problems nothing before changing injectors other then the fuel in oil problem. After injector change is when I got codes. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Nov 30, 2018 · Runs like tractor.. ECM, TCM, FICM codes”. So what are these codes or is this a guessing game. U**** codes communications problem within the CAN (Controller Area Network). The CAN network malfunction 3 possible causes: CAN connector is damaged or is disconnected. CAN communication line is open, shorted to ground or to power. Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. Oct 30, 2014 · Joined Aug 10, 2005. 7,134 Posts. #5 · Oct 31, 2014. P0611 is a death code for the FICM. Do not pass go, do not collect $200, just replace the FICM. GM will hit you for a pretty penny for one unfortunately. Just helped somebody else out over the phone with the same codes as yours, and his ended up being a FICM on his 01. The 5 Most Common LB7 Duramax Engine Problems Fuel Injector Failure Water Pump Failure Fuel Filter Housing O-ring Leaks Blown Head Gasket Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7's:Mar 29, 2017 · The example below shows a 2002 LB7 engine cranking over with the ignition relay unplugged. Note that the fuel rail pressure is at 24,053 psi. As stated previously, the fuel pressure with the ... A low voltage ficm can cause less than perfect combustion within the engine. This can lead to poor performance and poor fuel economy. You can encounter hard starts and slow running when the engine is cold. 4. Hard Start One of the common symptoms that usually indicates a bad Ficm is a hard start.Shop with Blessed Performance if you want even more power & higher performance from your FICM? 58V upgrade provides better overall power & improves cold starts. Toggle menu. 18005772698. ... 2001-2004 6.6L LB7 Duramax Diesel. All 2001-2004 6.6L LB7 Duramax Diesel; Air Intake Systems; ... Nov 24, 2018 · One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat. The solenoid style Bosch units found in the LB7 employed a non-hardened internal ball seat to seal the ... New injectors by dealer at 254,000. Truck was running fine except for an occasional cylinder 1 misfire code and a slightly rough idle when warm. I drove truck 60 mi yesterday and it ran fine. I started it up this morning and drove it 3/4 of a mile and shut it down. Everything was fine. Truck sat for 30 minutes. Upon restart, it would barely run.Mar 29, 2017 · The example below shows a 2002 LB7 engine cranking over with the ignition relay unplugged. Note that the fuel rail pressure is at 24,053 psi. As stated previously, the fuel pressure with the ... A low voltage ficm can cause less than perfect combustion within the engine. This can lead to poor performance and poor fuel economy. You can encounter hard starts and slow running when the engine is cold. 4. Hard Start One of the common symptoms that usually indicates a bad Ficm is a hard start.There are a couple of symtoms that usually lead to a bad FICM. First would be a hard start. If the truck cranks long than normal and then starts and runs rough, the FICM is one of the first things we check. Check the Trouble Codes First: If you have a FICM performance code then move to the voltage check below. Oct 04, 2010 · a buddy has an 04 lb7. originally it would start hard cold and the not restart hot. progressed to spraying either cold and no start hot. now no start with either hot/ cold anything. truck has 93k on it but extremely high hours almost 5000 (mine with 250k only has like 6500 hours) it has original injectors, completely stock, new ... Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Jun 06, 2001 · O.k.,since the U1800 has been there a few times and the pressure control code as well this does sound like a fault with the FICM itself.Make sure none of the wiring leading to and at the FICM is damaged needing repaired and if this is all found to be o.k. the FICM will need replaced. Thanks Pete 1. Excessive fuel restriction, check or change fuel filter 2. Use vacuum gauge, check the suction, you should have no more than 5 inches Hg at WOT (wide open throttle) or 7-8 inches Hg under load. If you have too much suction, after changing the filter, the restriction could also be the sock in the tank. Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... Feb 15, 2015 · marine4x4. I have been diagnosing a no run/ sometimes running rough condition with my LB7 which is mostly stock other than bolt ons. Codes are P0201 through to P0208 for all 8 injectors, P1261, P1262, P0370, and P0335. I used the GM diagnostic tree for P0201 and got to step 19. that says to check for ignition voltage on the ignition circuit for ... Nov 24, 2018 · One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat. The solenoid style Bosch units found in the LB7 employed a non-hardened internal ball seat to seal the ... Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows Oct 04, 2010 · a buddy has an 04 lb7. originally it would start hard cold and the not restart hot. progressed to spraying either cold and no start hot. now no start with either hot/ cold anything. truck has 93k on it but extremely high hours almost 5000 (mine with 250k only has like 6500 hours) it has original injectors, completely stock, new ... Shop with Blessed Performance if you want even more power & higher performance from your FICM? 58V upgrade provides better overall power & improves cold starts. Toggle menu. 18005772698. ... 2001-2004 6.6L LB7 Duramax Diesel. All 2001-2004 6.6L LB7 Duramax Diesel; Air Intake Systems; ... Symptoms of Failing Duramax Fuel Injectors. If you think your common rail injectors are failing, there's a few symptoms that you can look out for. These include: Excessive Smoke. Power Loss. Rough Idle. Fuel in Oil. High Return Fuel. No Start. Sep 03, 2010 · Registered. 2005 duramax cclb edge cts2 egr delete ats transmission 5” straight pipe 38” tires cognito lift. Joined Aug 9, 2021. 8 Posts. #14 · Sep 11, 2022. Yes. the p0642 it will run then the dic low oil pressure comes on and goes crazy. Yesterday the truck would run great up to about 45mph the crap out on me, shake and rattle then die. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors There are a couple of symtoms that usually lead to a bad FICM. First would be a hard start. If the truck cranks long than normal and then starts and runs rough, the FICM is one of the first things we check. Check the Trouble Codes First: If you have a FICM performance code then move to the voltage check below. Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows Oct 04, 2010 · a buddy has an 04 lb7. originally it would start hard cold and the not restart hot. progressed to spraying either cold and no start hot. now no start with either hot/ cold anything. truck has 93k on it but extremely high hours almost 5000 (mine with 250k only has like 6500 hours) it has original injectors, completely stock, new ... Apr 28, 2010 · My Duramax LB7 has been smoking white smoke at idle, constant flow every time I stop the truck. You can almost feel the Idle not being very smooth on the truck as if the Fuel Pressure Regulator was not working properly. Now a few weeks ago I had thrown the FPR Code p0089 (while it was smoking at idle). Aug 02, 2017 · At the FICM in connector 1 its terminal 5 and in connector 2 it's terminal 119. They are both pink wires. As far as 45-99 ohms, that's shorted and can easily blow a fuse. Make sure the wires are not rubbing on the bracket by the alternator close to the FICM. Christopher. 9mo 9mo. LB7 FICM should make 96 volts running. best dork scanner How to Test your FICM. Small 1/4 or 3/8" drive socket wrench, 8mm socket, 10mm socket and a pair of pliers. The FICM is located beneath the coolant reservoir bottle in the photos. 1. Start with a cool engine and truck. 2. Remove and reposition the coolant reservoir. You can do this without draining the coolant as long as the reservoir is tilted ... Jun 23, 2022 · Fuses all good also. So my question is could it be a bad FICM. Could the FICM Cause the truck to just crank for a short second like 4 seconds and just stop on it own and not fire. NOTE: I had no codes no problems nothing before changing injectors other then the fuel in oil problem. After injector change is when I got codes. These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows A low voltage ficm can cause less than perfect combustion within the engine. This can lead to poor performance and poor fuel economy. You can encounter hard starts and slow running when the engine is cold. 4. Hard Start One of the common symptoms that usually indicates a bad Ficm is a hard start.If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... Nov 24, 2018 · One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat. The solenoid style Bosch units found in the LB7 employed a non-hardened internal ball seat to seal the ... Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows Shop with Blessed Performance if you want even more power & higher performance from your FICM? 58V upgrade provides better overall power & improves cold starts. Toggle menu. 18005772698. ... 2001-2004 6.6L LB7 Duramax Diesel. All 2001-2004 6.6L LB7 Duramax Diesel; Air Intake Systems; ... Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. What Are The Symptoms Of Bad Ficm Relay? 1. Sending codes; 2. Overheated ; 3. FICM Failure; 4. Hard Start; How To Detect A Bad Ficm Relay? Check the wire harness; FICM test; How To React When You Found Out A Bad Ficm Relay? Is Replacing Ficm Relay Is Expensive? How Often Should You Replace The Relay? The Verdict The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once. Injector replacement on the LB7 truck is rather labor intensive and just changing one is usually not worth the risk for the labor costs.2001 lb7. 29,000 original miles. Completely stock. Last ran 6 weeks ago no problems except had to crank longer than normal before it started. Thought to be to week batteries. Went to start it last week and no go. What Are The Symptoms Of Bad Ficm Relay? 1. Sending codes; 2. Overheated ; 3. FICM Failure; 4. Hard Start; How To Detect A Bad Ficm Relay? Check the wire harness; FICM test; How To React When You Found Out A Bad Ficm Relay? Is Replacing Ficm Relay Is Expensive? How Often Should You Replace The Relay? The Verdict If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Oct 04, 2010 · a buddy has an 04 lb7. originally it would start hard cold and the not restart hot. progressed to spraying either cold and no start hot. now no start with either hot/ cold anything. truck has 93k on it but extremely high hours almost 5000 (mine with 250k only has like 6500 hours) it has original injectors, completely stock, new ... Aug 02, 2017 · At the FICM in connector 1 its terminal 5 and in connector 2 it's terminal 119. They are both pink wires. As far as 45-99 ohms, that's shorted and can easily blow a fuse. Make sure the wires are not rubbing on the bracket by the alternator close to the FICM. Christopher. 9mo 9mo. LB7 FICM should make 96 volts running. Aug 05, 2020 · LB7 Faulty Fuel Filter Housing Symptoms Fuel pump loses prime making the engine hard start Low fuel rail engine codes Engine misfires, shaky idling, performance issues Your two replacement options are either to buy a new head assembly or simply buy a rebuild kit and replace the o-rings, gaskets, bolts, etc. The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once. Injector replacement on the LB7 truck is rather labor intensive and just changing one is usually not worth the risk for the labor costs. triumph project cars for sale Apr 28, 2010 · My Duramax LB7 has been smoking white smoke at idle, constant flow every time I stop the truck. You can almost feel the Idle not being very smooth on the truck as if the Fuel Pressure Regulator was not working properly. Now a few weeks ago I had thrown the FPR Code p0089 (while it was smoking at idle). Feb 15, 2015 · marine4x4. I have been diagnosing a no run/ sometimes running rough condition with my LB7 which is mostly stock other than bolt ons. Codes are P0201 through to P0208 for all 8 injectors, P1261, P1262, P0370, and P0335. I used the GM diagnostic tree for P0201 and got to step 19. that says to check for ignition voltage on the ignition circuit for ... Jun 23, 2022 · Fuses all good also. So my question is could it be a bad FICM. Could the FICM Cause the truck to just crank for a short second like 4 seconds and just stop on it own and not fire. NOTE: I had no codes no problems nothing before changing injectors other then the fuel in oil problem. After injector change is when I got codes. 2001 lb7. 29,000 original miles. Completely stock. Last ran 6 weeks ago no problems except had to crank longer than normal before it started. Thought to be to week batteries. Went to start it last week and no go. Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. May 25, 2013 · The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs ... Dec 15, 2017 · jc1843. Remove the "U" hose from the back of the fuel rail- plug the hose. Attach a piece of hose to the fuel rail nipple and insert the hose in a bottle, now drive the truck hard with a few full throttle runs- if the FPRV bleeds off fuel into the bottle, the valve is bleeding off pressure. That can affect performance. Sep 03, 2010 · Registered. 2005 duramax cclb edge cts2 egr delete ats transmission 5” straight pipe 38” tires cognito lift. Joined Aug 9, 2021. 8 Posts. #14 · Sep 11, 2022. Yes. the p0642 it will run then the dic low oil pressure comes on and goes crazy. Yesterday the truck would run great up to about 45mph the crap out on me, shake and rattle then die. These include: Excessive Smoke Power Loss Rough Idle Fuel in Oil High Return Fuel No Start If you're experiencing any of these symptoms, it might be time to replace your fuel injectors. For example, coolant or fuel could enter your oil supply because of a faulty injector. These are not effective lubricants, and can cause problems down the line. May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Jun 23, 2022 · Fuses all good also. So my question is could it be a bad FICM. Could the FICM Cause the truck to just crank for a short second like 4 seconds and just stop on it own and not fire. NOTE: I had no codes no problems nothing before changing injectors other then the fuel in oil problem. After injector change is when I got codes. May 25, 2013 · The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs ... Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. Feb 02, 2014 · I have a 2004 lb7 that I put injectors in a while ago and I have a miss that happens when the engine is idling while transmission is in gear and truck is creeping about walking speed. It does it hot or cold. It doesn't do it in neutral or drive while not moving. No smoke black or white while hot or cold. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Nov 24, 2018 · One thing the ’01-’04 LB7 Duramax is notorious for is injector failure. The two primary failure points of the factory injectors are internal cracking of the injector body itself and corrosion-induced failure of the internal ball seat. The solenoid style Bosch units found in the LB7 employed a non-hardened internal ball seat to seal the ... Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Aug 05, 2020 · LB7 Faulty Fuel Filter Housing Symptoms Fuel pump loses prime making the engine hard start Low fuel rail engine codes Engine misfires, shaky idling, performance issues Your two replacement options are either to buy a new head assembly or simply buy a rebuild kit and replace the o-rings, gaskets, bolts, etc. 1. Excessive fuel restriction, check or change fuel filter 2. Use vacuum gauge, check the suction, you should have no more than 5 inches Hg at WOT (wide open throttle) or 7-8 inches Hg under load. If you have too much suction, after changing the filter, the restriction could also be the sock in the tank. Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Sep 03, 2010 · Registered. 2005 duramax cclb edge cts2 egr delete ats transmission 5” straight pipe 38” tires cognito lift. Joined Aug 9, 2021. 8 Posts. #14 · Sep 11, 2022. Yes. the p0642 it will run then the dic low oil pressure comes on and goes crazy. Yesterday the truck would run great up to about 45mph the crap out on me, shake and rattle then die. Symptoms of Failing Duramax Fuel Injectors. If you think your common rail injectors are failing, there's a few symptoms that you can look out for. These include: Excessive Smoke. Power Loss. Rough Idle. Fuel in Oil. High Return Fuel. No Start. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. LB7 Injector Symptoms + Diagnosis. The truth is you could toss a coin and have a fair chance of deciding that your LB7 needs a set of injectors, but there is of course a very scientific way to determine which ones are failing. The first visual clue a driver will notice will be excessive smoke from the tail pipe at idle.May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Aug 02, 2017 · At the FICM in connector 1 its terminal 5 and in connector 2 it's terminal 119. They are both pink wires. As far as 45-99 ohms, that's shorted and can easily blow a fuse. Make sure the wires are not rubbing on the bracket by the alternator close to the FICM. Christopher. 9mo 9mo. LB7 FICM should make 96 volts running. http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... Aug 02, 2017 · At the FICM in connector 1 its terminal 5 and in connector 2 it's terminal 119. They are both pink wires. As far as 45-99 ohms, that's shorted and can easily blow a fuse. Make sure the wires are not rubbing on the bracket by the alternator close to the FICM. Christopher. 9mo 9mo. LB7 FICM should make 96 volts running. 2001 lb7. 29,000 original miles. Completely stock. Last ran 6 weeks ago no problems except had to crank longer than normal before it started. Thought to be to week batteries. Went to start it last week and no go. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. What Are The Symptoms Of Bad Ficm Relay? 1. Sending codes; 2. Overheated ; 3. FICM Failure; 4. Hard Start; How To Detect A Bad Ficm Relay? Check the wire harness; FICM test; How To React When You Found Out A Bad Ficm Relay? Is Replacing Ficm Relay Is Expensive? How Often Should You Replace The Relay? The Verdict If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... Aug 02, 2017 · At the FICM in connector 1 its terminal 5 and in connector 2 it's terminal 119. They are both pink wires. As far as 45-99 ohms, that's shorted and can easily blow a fuse. Make sure the wires are not rubbing on the bracket by the alternator close to the FICM. Christopher. 9mo 9mo. LB7 FICM should make 96 volts running. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. LB7 Faulty Fuel Filter Housing Symptoms. Fuel pump loses prime making the engine hard start. Low fuel rail engine codes. Engine misfires, shaky idling, performance issues. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. forevermoment.shopWhen a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. The symptoms are constant smoke at idle and gaining fuel in the oil. Unfortunately the best thing to do if you have this problem is to replace the whole set at once. Injector replacement on the LB7 truck is rather labor intensive and just changing one is usually not worth the risk for the labor costs.Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. Feb 15, 2015 · marine4x4. I have been diagnosing a no run/ sometimes running rough condition with my LB7 which is mostly stock other than bolt ons. Codes are P0201 through to P0208 for all 8 injectors, P1261, P1262, P0370, and P0335. I used the GM diagnostic tree for P0201 and got to step 19. that says to check for ignition voltage on the ignition circuit for ... When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs P0201, P0204, P0206, P0207 will set, along with DTC P1261.http://www.toxicdiesel.com/ This Video Will Show You How To Check Your LB7 Fuel Injectors If The Solenoids Are Bad, Keep In Mind That All Trucks Are Differen... Apr 06, 2001 · • GMC - C-Series Topkicks V8 6.6 LB7 (2003-2004) The FICM (Fuel Injection Control Module) controls the electrical impulses that control the fuel injectors. The fuel injector ignition voltage circuit is Pulse Width Modulated (PWM) , between 20 volts at idle to approximately 93 volts in order to compensate for increased engine ... Apr 24, 2016 · 2004 lb7 duramax Ficm fuse#5 keeps blowing.. Ohm pink wire to #5 and #119 is good Although #5 wire crosses with black&green on plug And #119 crosses with green&rehire Also pink wire seems very good shape and while both are unplugged from ficm fuse still blows Nov 30, 2018 · Runs like tractor.. ECM, TCM, FICM codes”. So what are these codes or is this a guessing game. U**** codes communications problem within the CAN (Controller Area Network). The CAN network malfunction 3 possible causes: CAN connector is damaged or is disconnected. CAN communication line is open, shorted to ground or to power. The 5 Most Common LB7 Duramax Engine Problems Fuel Injector Failure Water Pump Failure Fuel Filter Housing O-ring Leaks Blown Head Gasket Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7's:Oct 30, 2014 · Joined Aug 10, 2005. 7,134 Posts. #5 · Oct 31, 2014. P0611 is a death code for the FICM. Do not pass go, do not collect $200, just replace the FICM. GM will hit you for a pretty penny for one unfortunately. Just helped somebody else out over the phone with the same codes as yours, and his ended up being a FICM on his 01. Symptoms of Failing Duramax Fuel Injectors. If you think your common rail injectors are failing, there's a few symptoms that you can look out for. These include: Excessive Smoke. Power Loss. Rough Idle. Fuel in Oil. High Return Fuel. No Start. briggs and stratton 500e series 140cc parts manual. auto hold volkswagen Jun 11, 2019 · The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque. When ... Sep 03, 2010 · Registered. 2005 duramax cclb edge cts2 egr delete ats transmission 5” straight pipe 38” tires cognito lift. Joined Aug 9, 2021. 8 Posts. #14 · Sep 11, 2022. Yes. the p0642 it will run then the dic low oil pressure comes on and goes crazy. Yesterday the truck would run great up to about 45mph the crap out on me, shake and rattle then die. When a fuel injector circuit condition is detected by the FICM, all of the fuel injectors on the affected ignition voltage circuit will be disabled. If a circuit condition is detected on a fuel injector circuit for cylinders 1, 4, 6, or 7, DTCs P0201, P0204, P0206, P0207 will set, along with DTC P1261.Jan 10, 2018 · Injectors that have a poor cylinder power contribution or a noise or smoke change when canceled will also need to be replaced and are likely to cause low rail pressure during cranking. Balance Rates, when checked hot in drive after a hard test drive, should indicate bad injectors. When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. Symptoms of Failing Duramax Fuel Injectors. If you think your common rail injectors are failing, there's a few symptoms that you can look out for. These include: Excessive Smoke. Power Loss. Rough Idle. Fuel in Oil. High Return Fuel. No Start. What Are The Symptoms Of Bad Ficm Relay? 1. Sending codes; 2. Overheated ; 3. FICM Failure; 4. Hard Start; How To Detect A Bad Ficm Relay? Check the wire harness; FICM test; How To React When You Found Out A Bad Ficm Relay? Is Replacing Ficm Relay Is Expensive? How Often Should You Replace The Relay? The Verdict Symptoms of Failing Duramax Fuel Injectors. If you think your common rail injectors are failing, there's a few symptoms that you can look out for. These include: Excessive Smoke. Power Loss. Rough Idle. Fuel in Oil. High Return Fuel. No Start. Nov 24, 2018 · When an LB7 injector begins to leak, you’ll notice the truck hazing at idle and you’ll also be able to observe abnormally high injector balance rates (the amount of fuel each injector contributes to maintain a smooth idle) with the appropriate diagnostic equipment. Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors Nov 05, 2020 · Signs of Bad LB7 Duramax Injectors Here are common issues experienced when you have bad injectors. Excessive/Constant Smoke when Idling Hard Starts Fuel in Oil. Check Dipstick look for a surplus of oil or even smell the dipstick. When fuel is present, you can often smell it. How To Fix Bad Injectors Apr 12, 2022 · A failing LB7 injector will allow excess fuel into the engine either from a leaky pintle seat or a cracked body, but in either case, that fuel can wind up where it doesn’t belong. If you notice your oil level is going up over time, that’s a dead giveaway the injectors are leaking, but usually it won’t be enough to notice on the dipstick. LB7 Injector Symptoms + Diagnosis. The truth is you could toss a coin and have a fair chance of deciding that your LB7 needs a set of injectors, but there is of course a very scientific way to determine which ones are failing. The first visual clue a driver will notice will be excessive smoke from the tail pipe at idle.If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you. As you're probably aware, ECMs have some small risk of crashing during a tuning flash. Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. May 04, 2015 · Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up. The original injectors that came in these trucks had all sorts of issues with cracking. The symptoms are constant smoke at idle and gaining fuel in the oil. Nov 30, 2018 · Runs like tractor.. ECM, TCM, FICM codes”. So what are these codes or is this a guessing game. U**** codes communications problem within the CAN (Controller Area Network). The CAN network malfunction 3 possible causes: CAN connector is damaged or is disconnected. CAN communication line is open, shorted to ground or to power. When a 6.6L engine will not start , one of the first things to check is fuel rail pressure. If the pressure is below spec, one of the most likely causes is a defective injector that is returning excess fuel back to the tank. ... LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine. A low voltage ficm can cause less than perfect combustion within the engine. This can lead to poor performance and poor fuel economy. You can encounter hard starts and slow running when the engine is cold. 4. Hard Start One of the common symptoms that usually indicates a bad Ficm is a hard start. vscode flake8 max line lengthxa