general problems of the 2019 GMC Sierra 1500 - part 1

The lifters collapsed on cylinder 3 causing the camshaft to shed metal into the oil leading to bearing failure. Leaving us stranded 210 miles away from home. Motor has 85,909 miles. This is the same problem that the 2021 model year trucks have that has a recall. The 2019 model years have the exact same problems. I personally know 6 people who have had this happen. Check out the facebook page. Gm 6. 2 lifter and bearing failure.

Subject: event of engine failure • while driving on a level paved road at 15 miles per hour in a busy area my 2019 GMC sierra denali pickup truck stalled in the middle of a busy street. • truck stalled in a heavy traffic area at an intersection putting myself and passengers in a dangerous area and situation. This obstructed the normal flow of traffic causing a danger to pedestrians and normal vehicle traffic pattern. Each had to go around my disabled truck into oncoming traffic putting them and normal traffic flow at risk. •upon securing a towing service the truck was transported to the nearest gm dealership. This happened on a Friday afternoon and the truck got to the dealership after hours. I returned to the dealership the next morning and was told that they may not be able to check the truck until probably Tuesday. On Monday afternoon I called and they hadn't been able to get to it. I received a call the next day and was informed that the technician at the dealership had put a breaker bar to the crankcase and the engine would not move and therefore the engine is seized. • there were no warning lights that came on prior to the truck stalling in the street. There was no noise prior or any other symptom to give any indication that the truck was not operating in a normal fashion.

Total engine power loss while driving 70mph on the highway in steady moving traffic causing a safety hazard, with 3 young children in the vehicle. No prior warning lamps, messages or symptoms to indicate a problem. Engine completely shut down while driving and will not turn back on. Had vehicle towed to the dealership. Certified GMC dealership did a full inspection and indicated that the engine assembly needs to be fully replaced. Nhtsa campaign 25v274 for vehicles 2021 and newer is for the same exact engine failure issue with the same engine size. I would appreciate you exploring the possibility of covering this catastrophic malfunction as an exception to the aforementioned recall campaign. Many other drivers have noted the same failure with the 2019 as was included in the recall for 21-24. Thank you for your consideration, please feel free to reach out to me directly to discuss further. I look forward to hearing from you!.

I am writing to formally log a safety concern regarding my vehicle’s 6. 2l l87 engine, specifically in relation to the known defects under NHTSA’s ongoing engineering analysis ea25007 (previously preliminary evaluation pe24004). While my vehicle is currently running and has 52,000 miles on the odometer, it falls squarely within the manufacturing window being investigated for premature engine failures due to defective connecting rod bearings and dynamic fuel management (dfm) lifters. My primary concern is the severe safety hazard presented by a sudden, catastrophic engine failure. A sudden seizure or loss of motive power at highway speeds puts myself, my passengers, and other drivers at an immediate risk of a high-speed collision, especially if it occurs without prior warning lights or symptoms. Because gm’s previous engine recalls (such as 24v-418) excluded the 2019 model year despite utilizing the same vulnerable engine family, I am filing this report to urge the NHTSA to expand the recall to include 2019 models. I want my vehicle's VIN documented as part of this vulnerable population so that a proactive, permanent remedy can be mandated before a dangerous highway failure occurs.

The engine went into limp mode as I made turn leaving the damn I was is in town and it was a lot of traffic could’ve been bad if I didn’t pull into the median left me devastated and no crank no start I’ve only had the truck a year it went down a month from when I purchased it.

The lifter on my gm sierra at4 truck with a 6. 2l (l87) engine collapsed and damaged the engine shafts and cylinders in the block. While driving, the engine started to lose power, and a ticking noise started to occur. I pulled the car over to the side of the road and called the dealer, which told me to have the truck towed into the dealership. Metal was found in the oil. The entire engine has to be replaced for $12k. I have a life time oil change service with the dealer an also an extended warranty, but my mileage was over the warranty by 6k miles. The warranty ended at 106k miles and actual milage was 113k. I reached out to my dealer and also to gm to discuss goodwill assistance and gm pushed back indicating they cannot do anymore. I asked the rep to esalate the ticket.

Engine failure at random while operating. Dealership stated vehicle blew engine block fuse and crankshaft is now seized.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving 55 mph, the low oil pressure message was displayed. The engine oil cooler line had detached, and oil was leaking from the vehicle, causing the engine to seize. The contact associated the failure with general motors customer satisfaction program: n212326940. The vehicle was towed to the local dealer, where it was diagnosed that the engine needed to be replaced. The vehicle had not been repaired. The manufacturer was contacted and opened a claim. The failure mileage was approximately 96,182.

The contact owns a 2019 GMC Sierra 1500. The contact stated while driving at 55 mph, the vehicle made an abnormal rumbling sound and stalled. All the warning lights illuminated. The vehicle was taken to a nearby independent mechanic, who determined that the engine lifter and cylinder had failed. The vehicle was not repaired. The local dealer was not contacted. The manufacturer was contacted and confirmed that there was no recall coverage. The manufacturer referred the contact to the NHTSA hotline for assistance. The failure mileage was approximately 98,003.

I haven’t even owned my truck for2years.

I believe I had a lifter failure as I was traveling up sr 393. Safety issue as vehicle lost power. Vehicle is at dealership now and confirmed possible lifter collapse. No dashboard lights were on or any power issues prior.

The contact owns a 2019 GMC Sierra 1500. The contact stated that upon starting the vehicle, the engine seized. There was no warning light illuminated. The vehicle was towed to a local dealer to be diagnosed. The contact stated was informed that the engine failure was caused by rod bearing failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 115,000.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving at 25 mph, the check engine warning light illuminated, and the engine started knocking. The contact pulled over immediately and contacted an independent mechanic, who recommended continuing to continue driving at a slow speed. The contact resumed driving to the residence. The contact's son, who was a highly skilled mechanic, diagnosed that the left bank lifters had failed. The vehicle was not repaired. The dealer was contacted several times and informed that the VIN was not included in a recall and referred the contact to the manufacturer for assistance. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 83,000.

Complete failure on cylinder 3 after afm system caused lifter collapse in 5. 3l v8. Lifter fell into cam shaft and scored the shaft at 55mph. Truck started surging and shaking violently. Truck shaking had me swerve to the side of the road as I was coming up on a crosswalk with golf cart about to cross the road. Vehicle was inspected at atwater gm in aitkin, mn and component failure was identified. Two weeks later I paid $14,149 to have a complete engine replacement. There was absolutely no indication that this event would take place. Just months before I took this truck from [xxx] to [xxx] and back without an issue. Gm should be held responsible for a complete lack of safety due to faulty afm engines. Not only did this endanger my safety, but I also had to withdraw from my 401k to pay for the outrageous cost of a new engine replacement because of a single point of failure. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Engine seized on june29th while driving on I 64 . (6. 2 l87) due to oil line failure. Engine replaced on July 18th, 2026. New engine started leaking oil from camshaft and gasket on August 10th 2026, back in GMC shop on august12th 2026 for repairs, still waiting parts today. Sudden failure on road in traffic inspected by GMC southpoint. No indication prior to failure and shut down completely. Could not do anything to move vehicle out the road.

My 2019 GMC Sierra 1500 at4 equipped with the 6. 2l engine experienced an internal engine/lifter failure. The vehicle was inspected by an authorized GMC dealership. The dealership documented damaged lifters, including rough edges and visible signs of friction, and advised that the camshafts on these vehicles can also have issues. I was provided estimates for both a lifter repair and complete engine replacement. Due to the possibility of additional internal engine/camshaft damage and the risk of having to repeat the lifter repair, complete engine replacement was recommended. The dealership is replacing the engine with a gm remanufactured engine, part #19420611, carrying a 3-year/100,000-mile warranty. The customer-paid repair is approximately $9,400 plus applicable taxes and shop charges because my 2019 vehicle/VIN is not currently included in the existing l87 engine recall. I am submitting this complaint because NHTSA is currently investigating failures involving 6. 2l l87-equipped vehicles outside the existing recall population. I believe this failure should be documented and considered as part of the investigation into whether the affected vehicle population should be expanded. I have requested the dealership provide the technician's complete diagnosis and documented cause of failure and can provide additional information when received.

I am retired and have always bought gm vehicles which are taken care of with required oil changes etc. This one I have only owned 25,000 mi each year (I have owned two years). So, when purchased it has high 50,000 miles not sure of exact, and it has only been driven 2 years. When calling escalation at gm, they act as though it doesn't matter and too bad. 110,000 miles and the truck needs a new motor. This is what we are told and 10,000 more than the initial 1500 to tear it down. This truck is not broken due to us, this is a problem with the manufacturer and the responsibility needs to be addressed. My husband has a heart issue and he almost didn't make it home. I'm not accepting that nothing be done, since next we need a lawyer and a media appointment. This isn't right when you see thousands of people with the same GMC sierra trucks online with complaints of the same valve and motor issues. This needs completely replaced and not by a customer, by the manufacturer. How can 1500 people new wrong on one sight stating the same as we have had. This person who is responsble for reporting and making sure we are safe needs to be fired. I am writing my representatives, senators etc to let them know this is going on. No one should pay for the mistakes of bad engineering. Period.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while driving 75 mph, the message "engine power reduced" was displayed and the vehicle decelerated and stalled. The vehicle was pulled over onto the shoulder and failed to restart. Roadside assistance was called to the scene, and the vehicle was towed to the local service center, diagnosed, and it was determined that the engine cam actuator screws had failed causing metal shavings to enter the engine and turbo. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer and local dealer were notified of the failure. The failure mileage was 95,000.

On [xxx], my 2019 GMC Sierra 1500 denali equipped with the 6. 2l engine suffered a sudden loss of power while driving. The vehicle lost propulsion and could not continue operating normally. The vehicle was taken to orange Buick GMC in orlando, florida. The dealership advised that the engine is locked and unable to rotate manually, and that the engine requires replacement. The vehicle has approximately 126,000 miles. This failure occurred while the vehicle was being driven and created a safety concern due to sudden loss of propulsion. A sudden engine lockup or loss of power could increase the risk of a crash, especially if it occurs in traffic, at highway speed, while turning, or while crossing an intersection. There was no crash, fire, injury, or death. The vehicle remains at the dealership awaiting repair. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

While towing jetski's the #2 cylinder has a persistent misfire. Was able to limp to chapman Chevrolet where it took 2 days to diagnose. Vehicle is below 70k, which just recieved a brand new transmission and torque converter due to metal shavings from converter getting pushed through to the transmission. Service advisor's message below: "performed further diagnosis and requested engine teardown to determine root cause of misfire. During disassembly, found cylinder #2 intake/exhaust valve train failure, including a bent pushrod and a severely scored/collapsed lifter. Inspection revealed the damaged lifter had caused abnormal contact with the camshaft lobe, resulting in significant scoring and wear of the camshaft. The failed lifter and bent pushrod led to loss of proper valve operation and cylinder misfire. Point of failure is lifter #2 that resulted in camshaft failure as consequence. I am in the process of generating a quote and taking pictures for the extended warranty. " seems like another afm/dfm issue has brought down another gm motor. Why are these motors not part of the recall, when they are going down the same was as the recall? my safety and my family were put at risk for a possible catastrophic failure and loss of power due to the engine being faulty. There were no warning laps, just check engine light, parking break wrench light. The only other sign was a quite tick that is with most chevy/gm motors.

No warning lights, engine stalled in the middle of the freeway almost got killed by a semi truck was behind me, engine lost power and found that needed new engine because of the camshaft and internal damage. Confirmed by certified mechanic.

There was a catastrophic internal engine failure, due to cam/lifter/bearing issues. This caused the timing chain and tensioner to jump and the engine to be out of alignment. This caused the valves to all be bent as a result. I believe that this has been an issue for longer than what gm has originally recalled for, and I am submitting this complaint because I read that there is an active investigation into this.

Lifters (the part that opens and closes engine valves) fail prematurely. There was a loud ticking noises, rough idling. Took to dealership and they advise that yes the lifters are failing and not drivable at this time.

Vehicle lost power and shut down while driving at 60 mph, would not restart.

On may 27, 2026, I was on my way home from work when I went to accelerate the vehicle and all the sudden it started shaking and the check engine light came on with the ebs. I was able to get the vehicle to a repair shop local the next day, who took the car apart. What was thought to be an easy fix of spark plugs and fuel injector, became even more after they put back together and the cylinder was still misfiring. After several hours of taking apart the engine, the mechanic determined that the hydraulic valve lifters had failed. This has been an ongoing issue with with the 5. 8l v8. Due to a recall not being under the VIN yet, I have now incured a $16k expense to add an engine to it after I purchased it in Nov of 25 at $97,000. This is a saftey issue and luckily no one was hurt when the car started shaking and couldn't go over a certain speed. I want this reviewed and looked at for possible reimbursement as there have been several other vehicles with the same known issue.

I was driving, suddenly my truck is dead. I got it tow to gm dealership for weeks. The technician diagnose and said I need a new engine replacement. My truck is only 148k.

Engine died!!,had it towed to local dealer and was told I have l87 engine failure ,but the recall dosen't cover 2019 models. Service tech says it only covers 2021-2024 6. 2 engines. Is there any action I can follow to be added to the recall. Thanks for your swift attention.

The contact owns a 2019 GMC sierra ld 1500. The contact stated that while driving approximately 65 mph, the vehicle, went into low power mode, and was able to move safely to a and then the vehicle stalled. The vehicle was towed to an independent mechanic and was diagnosed as the engine has no compression, suspect a possible crankshaft failure, also a possible engine replacement. The manufacturer was notified of of the failure. The contact associated the failure with NHTSA campaign number 25v274000 (engine and engine cooling). The approximate failure mileage was 130,000.

I was on my way home from work and everything was driving fine and then I got 1/4 mile from my house and the motor started making a very loud grinding sound. I could barely accelerate. The issue happened out of nowhere. No issues prior to this happening. I was driving about 40 miles an hour when the issue started and I limped it to my driveway, luckily I was not very far away. I have a 3 month old baby and this was my reliable family vehicle. Who’s to say what could have happened if I was driving at a higher speed with my child in the car. When it happened it started shaking really bad. I checked everything that I could. It sounded like my motor was starving for oil. I decided to go ahead and change my oil to see if that could have been the issue. I had just changed the oil approximately 2000 miles before this. I changed the oil and filter. Went to start it up and still same very loud grinding sound, shut it back off and have not started it since cause I’m afraid to damage it further. I checked the oil that I drained out of it and looks like small metal flakes in the oil. No warning prior to this happening. Just out of no where it sounds and felt like my motor was going to blow.

The contact owns a 2019 GMC sierra. The contact stated that while driving at 20 mph, the check engine light began to flash. The driver pulled over. The vehicle was knocking. The contact stated that failure was due to premature engine failure. The vehicle was towed to the local dealer, where it was diagnosed with a cylinder 3 lifter malfunction. The vehicle had misfired. The vehicle was not repaired. The manufacturer was notified, but no assistance was provided. The failure mileage was approximately 77,000.

After the vehicle was purchased in October 2023, it immediately had an issue shifting very hard. After numerous trips to the servicing dealership in attempts for error codes to be discovered with no success, the dealership gave the recommendation to flush the transmission as this was a fix for this type of engine in November 2024. The transmission was completely flushed in November 2024. The vehicle continued to have the issue with hard shifting and also developed less efficient gas mileage and would misfire upon ignition and there was a constant knock when running. After a prominent ticking began in may 2026, it was discovered that the timing chain was broken and we were told the rods could impale the engine and go through the hood if the engine was not replaced. The engine had completely failed and needed to be replaced including radiator and hoses. The engine, radiator, and hoses were replaced 05/2026. The invoices for both of these service transactions are attached. After much research and advice, it appears this issue was the same issue that was happening with the other 6. 2l l87 engines from the years 2021 to 2024 that were recalled.

I was driving my 2019 GMC and all of a sudden I pulled into a subdivision the vehicle shut off and would not start again. I wasn't given an y warning or heard any sounds it shut off and would not start up again. I checked the battery and it was fine. I had it towed to a mechanic shop. They replaced the starter, and the battery module. After that they ran codes and the codes were p00c6 and p0340. I had it towed the the local Chevrolet dealership and they told me I needed to have the engine replaced, however they don't have any engines available or know when they would be able to get one.

Engine ceased while driving and shutdown. Towed to dealership. Dealership ran diagnostic test and code p0016 came up. Its 6. 2 engine has recall on other years with similar issues.

Engine fail due to lifters collapsing, had a really bad lifter on #3 and #2 and cause to chew out camshaft . Needed a new engine and gm didnt wanna honor it warranty only partial .

While driving, the vehicle suddenly began running rough, losing power, and displaying engine warning lights. Due to the severity of the issue, the vehicle was towed to a GMC dealership for diagnosis. The dealership diagnosed lifter failure and a cracked cylinder head. The dealership also documented coolant intrusion, oil/coolant contamination, and evidence of internal engine damage. Repairs were attempted, including replacement of the cylinder head and lifter. After the repairs were completed, the vehicle never left the dealership because it continued misfiring on the same cylinder. Gm later determined the engine had a failed piston ring and scored engine block requiring complete engine replacement. The vehicle has approximately 55,000 miles, has been properly maintained, and was purchased new. This catastrophic engine failure resulted in loss of power and major internal engine damage at relatively low mileage. I also opened a case directly with gm customer assistance regarding this failure. The case involved multiple escalations after the initial repair attempt failed and the vehicle ultimately required full engine replacement. Gm ultimately advised that only partial assistance toward the engine replacement would be provided, leaving the customer responsible for a significant portion of the repair cost. I am submitting this complaint because this vehicle appears consistent with the ongoing NHTSA investigation involving gm 6. 2l l87 engine failures and loss of motive power.