Engine And Engine Cooling Problems of GMC Sierra 1500 - part 2

Truck was in park idling and it started to run really rough so I turned it off. Wouldn’t start again. Now it needs a new motor.

See all problems of the 2017 GMC Sierra 1500 🔎.

Engine developed a clicking sound. Took to dealership and was diagnosed with rod and bearing damage requiring an engine replacement. Was fortunate to have inspected before engine failure while driving. No warning before the failure. I believe there is a known issue with the 6. 2 l engines.

See all problems of the 2019 GMC Sierra 1500 🔎.

The engine lost all power while driving down the road and code says p0016 truck is now at a GMC service station being torn down.

I am an active u. S. Air force member. My 2021 GMC Sierra 1500 failed gm recall n252494003 on sept 29, 2025 (l87 engine loss of propulsion). Gm states this defect can cause sudden engine failure and loss of propulsion, increasing crash risk. Despite the confirmed failure, ocean Cadillac (miami, FL) told me to keep driving the unsafe vehicle and refused all courtesy transportation. The service manager admitted in writing that the engine failed, the defect can cause loss of propulsion, and the replacement engine is delayed under gm national control for up to 3 months — yet they still denied me a loaner or rental. His statements contradict the gm documents he attached: • gm bulletin dcs7222 says courtesy transportation can be provided during l87 recall downtime and dealers must consider loaners/rentals. • gm faq n252494002 says courtesy transportation is available for this recall. • gm faq lists recall symptoms (check engine light, hesitation, high rpm, reduced power) — not battery drain. • gm states: “if the engine fails, the vehicle will lose propulsion. ” ocean Cadillac ignored these rules and put me back on the road in a known unsafe vehicle. As an american manufacturer, gm has a responsibility to protect american drivers. Their failure to follow recall procedures placed me, my family, and other motorists at risk. I request NHTSA investigate whether gm/ocean Cadillac are complying with recall safety requirements and whether customers are being told to drive unsafe vehicles after confirmed failures.

See all problems of the 2021 GMC Sierra 1500 🔎.

I do not have an official communication from the dealer who is servicing my vehicle. However, they have had my vehicle for almost 3 weeks and they tell me that the engine has failed and needs complete replacement. They said the engine lost compression and quit running, it now cranks and does not start. Although the engine has not been disassembled we believe the point fo failure to be in the rotating assembly of the bottom end of the engine.

6. 2l v8 engine in 2020 GMC Sierra 1500 at4 suffered two lifter failures, which damaged crankshaft and sent metal shards throughout engine and oil. Total engine replacement required. This issue is subject to a recall for 2021 - 2024 model years and the recall should extend to 2020 model years. Vehicle was traded without functioning engine at a significant loss in value for new vehicle, and is not available for inspection. Vehicle was inspected by service department at GMC dealership and traded to a different GMC dealer. No prior indications of problems or warning lights until engine failure occurred while driving.

See all problems of the 2020 GMC Sierra 1500 🔎.

The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at approximately 35-40 mph and hauling a trailer in stop-and-go traffic, there was white smoke coming from the exhaust pipe, and the vehicle started losing power. The contact was able to pull over to the side of the road, where the electronic stability control (esc) and the check engine warning lights illuminated. The parking brake was engaging and disengaging independently. After turning off the vehicle and waiting for approximately 15-20 minutes, the vehicle was restarted, and the contact drove to the nearest independent mechanic. The mechanic diagnosed the vehicle and determined that the ignition coils needed to be replaced. The vehicle was repaired; however, it was determined that the repair had not resolved the failure. The mechanic then diagnosed the vehicle cylinder #4 failure. The mechanic was in the process of determining whether the lifter or camshaft had failed. The mechanic determined that the engine might need to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 93,000.

The first time the truck stopped and wouldn’t want to start (engine light came up) after a few minutes and with a push the truck turned on. Next day while driving on freeway the truck shift hard pulling vehicle back as if it was going to stop without braking. Took truck to GMC dealer on 9/26/25 for an inspection with approx 17,000 miles. Oct. 17, 2025 GMC rep said my truck was inspected/ good to go and was ready for pick up. Not sure what part they had replaced. On oct. 18, 2025 picked up truck while leaving dealer I had my family in my truck about 3 miles into my drive we heard a loud clunk and the truck shifted hard slowing the truck down and display reduce acceleration drive with care and check engine light on. Have in mind we were on a busy traffic street driving while other cars had to pass us because we couldn’t speed up. I did not feel safe with my children in the car, left it again for the 2nd time with GMC service dept. Now we are almost reaching to a 30 day grace period without our vehicle.

See all problems of the 2024 GMC Sierra 1500 🔎.

As I was turning left from a county road to a highway my truck died on me. I was able to push it out of the road with the help of two other motorist. This is the second time in 4 months were my truck broke down due to engine failure. I had the motor repaired the first week in June 2025 for a similar instance. My truck is at the dealership right now awaiting repair because gm will not recognize that my 2019 6. 2 l87 engine has the same known defects as other 2019 6. 2 l87. This is a safety issue which gm refuses to acknowledge on my vehicle.

The check engine light is illuminated. Diagnostic information from the onstar system indicates a fault within the engine cooling system. The engine cooling fan remains engaged continuously, suggesting a possible malfunction with the cooling system components or related sensors.

See all problems of the 2023 GMC Sierra 1500 🔎.

The contact owns a 2019 GMC Sierra 1500. The contact stated that the vehicle was taken to the dealer for an oil change service. The contact stated that while in the process of picking up the vehicle, the dealer informed the contact that the vehicle had failed to start. The dealer determined that the engine needed to be replaced and provided an estimate for the repair. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure and informed the contact that the VIN was not included in a recall. The contact was referred to the NHTSA hotline for assistance. The contact related the failure to NHTSA action number: pe25001(engine, engine and engine cooling). The failure mileage was approximately 115,000.

The contact owns a 2024 GMC Sierra 1500. The contact received notification of NHTSA campaign number: 25v274000 (engine and engine cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

Constant engine issues, cams, lifters. Transmission problems. These engines in these vehicles need to be recalled. I have bought 6 of these trucks and all of them have the same issues. Spending 14k on new engines one after another is ridiculous. These are classified as “work” trucks and can’t handle “working”.

Constant engine issues, cams, lifters. Transmission problems. These engines in these vehicles need to be recalled. I have bought 6 of these trucks and all of them have the same issues. Spending 14k on new engines one after another is ridiculous. These are classified as “work” trucks and can’t handle “working“.

Constant engine issues, cams, lifters. Transmission problems. These engines in these vehicles need to be recalled. I have bought 6 of these trucks and all of them have the same issues. Spending 14k on new engines one after another is ridiculous. These are classified as “work” trucks and can’t handle “working” .

Constant engine issues. Cams, lifters, now needs new motor. Motor apparently unavailable.

See all problems of the 2022 GMC Sierra 1500 🔎.

The contact owns a 2023 GMC Sierra 1500. The contact received notification of NHTSA campaign number: 25v27400 (engine and engine cooling); however, the part to do the recall repair was not yet available. The local dealer was contacted and initially confirmed that parts were not yet available. The contact received notification that the parts for the recall repair were available. Upon arrival to the dealer, the contact was informed that the recall repair would be an oil change with thicker, higher viscosity oil. The contact expressed concerns that the failure might occur because the engine was not replaced. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

Sudden lost of power while driving. I was driving on the i95 and out of nowhere the vehicle shut off in the middle of the highway. It was a scary moment because I could of been in serious accident. All the engine signs were displayed on the dashboard.

- on 9/23/2025 while driving down the main street, the vehicle unexpectedly shut down (engine stopped running) and would not restart. The vehicle is currently at elevation GMC (boone ,nc) waiting to be diagnosed. - safety was put at risk by the vehicle unexpectedly shutting down in the middle the of rush hour traffic and not being able to be moved. - when it is was towed into the dealership and explained to the service manager what happened; she said "there is a known problem with the gear select lever losing communication with the truck and not knowing what gear it is in". - as of 9/24/2025; dealership has not looked diagnosed what the problem is/was. - there were no prior warning messages before the engine shut down.

Hard shifting transmission and fluid smells burnt, shifts hard in the lower gears and reverse.

See all problems of the 2014 GMC Sierra 1500 🔎.

In the past few months this truck has been worked on twice. First was the valve body and now it is the coolant control valve. These things have caused my truck to completely slow down or shut down without warning.

Engine suddenly lost power at highway speed. Truck was still running so I was able to get off the highway. Engine failure was caused by bent lifter. Lifter failure also caused damage to the camshaft. Vehicle was at dealership for significant time with a large repair bill that gm is not willing to cover due to the vehicle being 5 weeks out of warranty.

The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated and the vehicle started running abnormally rough, promptly the contact to discontinue driving the vehicle. The message “service traction control” was displayed, and the abs warning light was illuminated. The vehicle was taken to the dealer, but it had not yet been diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 20,000.

I was driving at highway speeds probably doing 55 and another vehicle pulled out in front of me forcing me to slow down rapidly. That’s when my wheels locked up and my vehicles wheels locked up in the middle of the highway. Screeching tires, almost like the vehicle went into park for a second. After about two seconds, I was able to continue driving a highway speed no check engine lights no error codes. It felt like I just hit something nearly gave me a heart attack. My family was in the car. It felt like we all almost died. It was terrifying. This transmission issue recall situation has happened to me more times than I can count. Now it’s almost a guarantee that if you have to shift too hard too fast it locks up the differential and it is terrifying. Every time.

Vehicle stalling at low speeds oil pressure solenoid stuck fault and p0011 camshaft fault.

See attached document for complaint.

2022 GMC sierra has a p1098 code. This code has to do with a faulty coolant control valve. This causes the engine fan to run constantly and displays on the screen "reduced acceleration, drive with caution". The truck does not have any power when this happens, which is 99% of the time. This makes using the truck very difficult in high traffic areas and pulling a loaded trailer. Apparently gm knows about this and is not getting the part to correct the problem to the dealerships in a timely manner. My truck was diagnosed with this problem over 2 weeks ago and still waiting on the part.

On 9-12-25 I was pulling a utility trailer when I went to back it in the driveway my 2013 GMC 1500 5. 3 stalled . I restarted it only to have a lifter claddering !!!! I checked the oil it was good ! oil pressure was good not over heating . It is just the lifter!!!!!! after doing some investigating I found that this is a common problem with gm's 5. 3 with the afm system!!! companies should be held accountable for fraudulent designs!!! this is not the first time for gm screwing consumers!!! gm had a similar situation back in the 70s and 80s Cadillac!!!! I bought this truck from a gm dealer with 67000 miles only drove it in 1 winter it now has 149900 miles!!!! 5 years !!! change oil and filter every 3000-4000 miles ,use mobile 5w- 30w !!!! I feel a recall should be made to hold gm accountable for what they new was a problem but produced and screwed consumers to make sales !!!!!!!!!!!!! ask any quality repair facility that works on gm's or even auto parts personal. When it stalled it left me in the middle of the road with traffic!!! even if it did start right back up !! clacking!! the cost is unbearable!!!!!!.

See all problems of the 2013 GMC Sierra 1500 🔎.

I purchased a 2025 GMC denali a few months ago. At approximately 7,000 miles, the front brakes failed unexpectedly and were replaced by the dealership. However, by 14,000 miles, I began experiencing brake issues again. Before I could return the vehicle for service, I was driving on the turnpike when the engine suddenly seized without warning. This created an extremely dangerous situation—vehicles behind me nearly collided as I lost power and control. I managed to pull over safely, but the tow truck operator struggled to load the vehicle due to all four wheels locking up and the engine being completely seized. Once the vehicle was inspected at the dealership, I was informed that the engine had failed and would need to be replaced. I am aware of the recurring issues associated with the 6. 2l GMC engines and related component failures, and I no longer feel safe driving this vehicle. Given the repeated mechanical failures and the serious safety risks involved, I am formally requesting that GMC initiate a buyback of this vehicle. I believe this situation qualifies under lemon law protections and warranty obligations, and I urge GMC to take immediate action to resolve this matter.

To all concerned, I scheduled my vehicle for routine maintenance, but more importantly, I scheduled my check engine light indicator logo to be activated. Following the maintenance and testing of my engine, the dealership informed me that my vehicle passed. For that matter, they put me right back on the road for the check engine light to come on the following morning, and it's still on and off as it pleases. During these very dangerous and extreme manmade and natural disasters GMC seems to think I will have peace of mind because they added an additional 5000 miles to the warranty. What good is that gonna do when for: 1. We arent safe… every scenario you can imagine. 2. Can't travel anywhere in confidence in my vehicle, because they hope I don't breakdown. 3. They gamble with my and other safe driver lives trying to save money. Our vehicles are two-ton vessels capable of creating all kinds of mess. 4. I bet if I don't pay GMC coming for their property so expect the same in return. 5. You can't make this right because my vehicle just tg the dealership two days ago. Please get to the bottom of this a save me the time, aggregation, and hassle of someone trying to convince me I'm fine… well im not. Thank you [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Engine lifters bent a pushrod and scratched my camshaft in my engine causing me to be stranded with minor children. 3rd time since I bought this in 2021 that I have had engine faults in this truck.

I purchased a 2018 GMC Sierra 1500 6. 2 denali new. I followed all service requirements including oil changes by gm dealerships. 2025 I noticed my truck power was decreasing. Than I started to hear knocking noses. I took it to a dealership for diagnosis but they couldn't identify anything. Finally it started to skip this is when a dealership diagnose it as being an issue with the active fuel management system. They said my lifters, camshaft, and various other parts was damaged and had to be replaced. Additionally, they said it was a recall on 6. 2 engines with the same identical issue but my year wasn't included. The cost to repair approximately 10,000. I really need your attention to this matter! September 10, 2025 my truck placed me and others in danger when it lose engine power. Also my engine light was on for the first time.

See all problems of the 2018 GMC Sierra 1500 🔎.

Our GMC engine with VIN# above needs to be recalled due to the failed active fuel management (afm) lifter which resulted in misfire’s & engine failure. GMC's defective lifters create a safety concern due to potential engine stalling and power loss while driving, which can lead to dangerous traffic accidents. While gm has implemented extended component coverage for some issues and issued a recall for a related problem with l87 v8 engines, they have not with our GMC sierra with the VIN# listed above, which has the same safety concern. Our GMC is currently at the dealership and we are determining next steps. Thankfully, my husband pulled over on the side of the road and turned the vehicle off before complete power loss. There was not much notification with the engine light prior to the incident. This could have ended very badly with my husband being injured or even worse my three children also being injured.

I heard a ticking noise coming from the engine compartment. I took it to the dealership that I purchased the truck from and that have been using consistently for service. I was told that the noise was coming from a lifter on the driver's side of the engine and, on further investigation, it was determined that the camshaft had been damaged. I was told that it could seize up as I was driving and that my safety and those with and around me would be at risk. At 85,000 miles, the engine had failed and would have to be replaced. There was no prior warning or no check engine light and the vehicle has been in for oil changes and all maintenance at the dealership. The new engine cost me $15000 including diagnosis and towing.

The contact owns a 2021 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling); the VIN was included, but parts were not yet available. The manufacturer was not notified of the failure. The failure mileage was 60,000.