Diesel Fuel System Problems of GMC Sierra 2500

The contact owns a 2019 GMC Sierra 2500. The contact stated that while her husband was driving 30 mph and depressing the accelerator pedal, there was an abnormal sound coming from the front of the vehicle, and the vehicle lost power unexpectedly. The contact stated that her husband was able to pull over to the right side of the road while waiting for tow truck assistance. The vehicle was towed to the residence. The vehicle was not towed an independent mechanic or dealer to be diagnosed. The engine was replaced, and the vehicle was repaired. The contact related the failure to NHTSA campaign number: 23v047000 (fuel system, diesel); however, the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was 143,000.

See all problems of the 2019 GMC Sierra 2500 🔎.

The contact owns a 2024 GMC Sierra 2500. The contact stated that the vehicle was idling roughly, and the rpm fluctuated between 500 and 1,000 rpm while idling. The check engine warning light was illuminated. Additionally, the contact stated that the fuel economy had decreased to 13 miles per gallon. The contact stated that upon scanning the vehicle, the contact retrieved dtc: p0606 and p062b. The contact related the failure to gm campaign number: n232415860 (fuel injector flow rate compensation). The dealer was contacted and informed the contact that a fee would be charged for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 70,000.

See all problems of the 2024 GMC Sierra 2500 🔎.

The contact owns a 2015 GMC Sierra 2500. The contact stated while driving at an undisclosed speed, the vehicle lost automotive power and stalled. No warning lights was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the fuel pump module needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 129,000.

See all problems of the 2015 GMC Sierra 2500 🔎.

The contact owns a 2020 GMC Sierra 2500. The contact stated that the vehicle was under NHTSA campaign number: 24v797000 (power train) and the vehicle was repaired. The contact stated that after the recall repair the transmission started shifting hard. The vehicle was taken to the dealer and the contact was informed that the transmission module would reprogram independently and adjust independently. The contact stated that a a week later while driving approximately 45 mph, the vehicle started to run rough, and the message engine power reduced was displayed. The transmission fault, parking brake system alert, service parking brake, and the check engine warning light illuminated. The vehicle was towed to the dealer who diagnosed the vehicle and determined that the fuel injector was open, causing high resistance in the connector for cylinder #4. The transmission could not be diagnosed until the injector was repaired. The manufacturer was informed of the failure and opened a case. The failure mileage was 125,000.

See all problems of the 2020 GMC Sierra 2500 🔎.

The contact owns a 2018 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. No warning light was illuminated. The vehicle was towed to the dealer, where it was determined that the fuel pump control module needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened. The failure mileage was approximately 48,000.

See all problems of the 2018 GMC Sierra 2500 🔎.

The contact owns a 2024 GMC Sierra 2500. The contact stated that while driving at various speeds, the two outside cabs were smoking. There was smoke detected near the fuel tank. The contact stated that there was an abnormal odor of diesel and def detected. There were no warning lights illuminated. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. While driving, there was a lot of smoke detected from the vehicle. The vehicle was taken back to the local dealer, who was unable to determine the cause of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 100.

The contact owns a 2017 GMC Sierra 2500. The contact stated while driving approximately 75 mph, the vehicle started to jerk and vibrate abnormally. The contact stated that the "engine power reduced" warning light was illuminated. The contact pulled off the roadway and placed the vehicle in park(p). The contact depressed the accelerator pedal, and the vehicle was vibrating. The contact stated that the steering wheel was also vibrating abnormally. The contact had taken the vehicle to an independent mechanic, where it was diagnosed and determined that the injector connection was worn, causing the engine to misfire, and needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The contact researched online and related the failure to technical service bulletin number: 23-na-027 fuel injectors (fuel system, diesel). The failure mileage was approximately 104,000.

See all problems of the 2017 GMC Sierra 2500 🔎.

The contact owns a 2015 GMC Sierra 2500. The contact stated while her husband was driving approximately 20 mph, the vehicle lost motive power and stalled. The vehicle lost power steering and power braking functionality. The contact stated that her husband did not see any warning lights being illuminated. The contact stated that her husband pulled over and stopped the vehicle. The vehicle could not be restarted. The contact stated that her husband purchased a fuel head for the diesel engine. The fuel head was replaced, the vehicle was started, and ran for less than a minute when the contact heard loosened nuts and bolts coming from the engine compartment. The vehicle stalled and was towed to an independent mechanic. The vehicle was diagnosed, and it was determined that the cp4 had to be replaced with a cp3 conversion (part 10904), fuel pump module assembly (part n10021) and a duramax conversion kit (part 10904). The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 136,000.

The contact owns a 2016 GMC Sierra 2500. The contact stated while driving 70 mph, the vehicle lost motive power and stalled inadvertently, almost causing a crash. There was no warning light illuminated. The contact stated that she was able to veer to the side of the road by dodging traffic. The vehicle failed to restart. The vehicle was towed to the dealer where it was diagnosed that the high-pressure fuel pump had exploded and projected metal fragments throughout the high-pressure fuel system. The vehicle was repaired at the owner’s expense. The manufacturer was notified of the failure and informed the contact that a partial reimbursement would be made. The failure mileage was approximately 114,000.

See all problems of the 2016 GMC Sierra 2500 🔎.

The contact owns a 2019 GMC Sierra 2500. The contact stated while stationary at a traffic light, he started to smell diesel fumes inside the cabin of the vehicle. The contact stated no warning light was illuminated. The contact was able to drive to his residence and while inspecting the vehicle, he noticed a fuel leak located near the engine. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The VIN was associated with NHTSA campaign number: 21v496000 (equipment). The manufacturer had not been informed of the failure. The failure mileage was 25,458.

Diesel fuel leaks from injectors into engine oil pan and contaminates engine oil them leaks oil from breather & rear main oil seal and gm knows there is a problem but wont do any thing for this problem said its out warranty on time not miles.

See all problems of the 2004 GMC Sierra 2500 🔎.

Noticed something leaking under truck in front of fuel tank. Fuel line leaking at connections above fuel cooler (lines look good but all connections are badly rusted) dealer wants $1,700. 00 to repair, says there is no recall.

See all problems of the 2002 GMC Sierra 2500 🔎.

Failure of injector connector circuit on cylinder #7 failure code po207 - TSB #05-06-04-047c.

Check engine light comes on in mid June 2010. . . Referred to owners manual which was possibly due to the exhaust filter. . . Owners manual stated specifics to clear which it did. Light appeared again and repeated owners manual procedures then scheduled appt at dealership to look at in which we received washer fluid recall at same time. Dealership repaired recall but could not duplicate reason for the "maintenance required light" issue. About a week later truck became hard to start. . . Glow plug indicator would not work and fuel began leaking from the fuel filter. Returned vehicle to dealership in which they found the fuel filter leaking and fuel sensor cracked in which they cannot find a replacement part and are doing a worldwide search. They also told us that our truck was not equipped with a glow plug indicator which we strongly advised that it was and verified with purchasing dealership. To date, the vehicle is still at the dealership and they have not been able to repair either issue. Advised that truck cannot be operated due to the fuel leakage.

See all problems of the 2008 GMC Sierra 2500 🔎.

Under normal driving conditions without cause the fuel filter water-in-gas sensor bleed valve leaks fuel. This causes fuel to leak into the engine compartment. Symptoms include fuel on the ground, fuel odor, hard/longer engine cranking. . Read more...

See all problems of the 2006 GMC Sierra 2500 🔎.

Started vehicle and fuel injector is not working.

See all problems of the 2003 GMC Sierra 2500 🔎.

The contact owns a 2003 GMC Sierra 2500 hd. The contact stated that the vehicle was repaired two months ago for the fuel filter housing, which caused the vehicle to immediately stall. Since July 3, 2009, the failure has been recurring while driving 20 mph. Gm stated that they did not have any parts available to repair the vehicle due to so many consumers who were experiencing the same issue. Gm is researching an alternative to repairing the fuel housing failure. The contact feels that this is a serious safety defect. The failure mileage was 117,000. Updated 08/14/09. Updated 08/14/09.

Allison transmission housing failed at 54,000 miles. Gm paid parts, I paid 1,200. 00 labor , was told that there was 2 bulletins out on defective housing and when they finished repair they said they installed updated housing so I would not have problem again. Don't think I should have paid anything to have it repaired! at 105,000 miles transfer case failed , cost 1,150. 00 to repair, have had to take back 2 more times as repair was not done right. At 112. 000 miles speedometer became erratic was told it was a common problem ,and see on complaint search it is , consider this a great safety danger as I do not know what speed I'm going can only guess not fixed yet found some who sells rebuilt ones foe 150. 00 ,said their rebuilding them due the large number that are failing. Also at 112,000 miles park neutral switch started acting up ,check engine light on ,shift bar light goes away, truck won't shift properly and stay in certain gears without shifting up ,effects door locks. Looked up park neutral shift as part and came across bulletins stating that during left hand turn front tire sprays water onto park neutral ,switch causing problem ,needs front & rear shield installed to solve problem. Have taken truck back in waiting for information. Also around 90,000 miles had very hard time starting truck and truck ran poorly,problem became worse took in, fuel injectors were bad and were replaced under warranty at 112,000 miles no need to say I'm not a GMC fan anymore , even though I live in lansing mi ( a gm town)and have lots of friends and family employed there. Good by GMC! never again.

Fuel leak. Fuel pump leaking cause fuel to be spew out over engine and under carriage.

Use of ultra low sulfur diesel fuel causing damage in earlier diesel engines.

See all problems of the 2007 GMC Sierra 2500 🔎.

Diesel power keeps reducing. Truck has been to dealer twice. All maintenance is performed per owners manual, including fuel filters. Truck has been to dealer twice for this problem. I suspect injector failure or other fuel system problem. At 5000 miles the previous owner had a new injector pump replaced. I feel that this makes the vehicle unsafe to trailer with. I have trouble maintaining speeds on even the smallest of grades not towing much weight. I have contacted gm, which was less than helpful. Dealer insists that it needs the "throttle body cleaned", no throttle body on a diesel! truck is now going to a recommended, competent medium duty dealership.

: the contact stated, while traveling on a highway at 55mph. , all power failed in the vehicle. Although there was not an accident, there was damage to the right fender, the compressor and the right rear tire of the vehicle while being towed. The contact incurred an injury to left knee. There was no police report filed. The vehicle was towed to a service dealer where the fuel sensor was replaced. The manufacturer recommended locations for the trailer and compressor to be repaired.

See all problems of the 2005 GMC Sierra 2500 🔎.