2022 GMC Sierra engine problems

“Coolant control valve failure per code P1098. Known issue with a special bulletin from Duramax which claims this should be a covered replacement for this year make and model. However, dealer claims VIN is not covered”

“After the recall was completed for the propulsion update and oil weight of 0-20 to 0-40 the truck started experiencing engine jerking and noise while driving. The MPG decreased significantly after the engine was replaced at 22k miles, driving on the interstate cruise control at 80mph the engine seized and I was almost smashed by a simi-truck. No steering, no power whatsoever. I was pulling on the steering wheel to get the truck off the freeway and out of the way. Fast forward around 70k miles, all the while I could deal with loss of MPG after engine replacement. No problems. Then came the recall and reflashing of the firm/software and a few months later I was making an u-turn when all a sudden the engine made a loud bang and bad tapping noise came from the engine. I could barely make it to the dealership where I bought the truck maybe 2 miles from where it happened. The dealership service center had the truck for a week then told me to come pick it up there is nothing they could do under warranty. All valve lifters except #3 are blown. GMC says the engine is not under warranty and I must pay $17k for a new engine.”

“The contact owns a 2022 GMC Sierra 1500. The contact stated that while driving at 45 MPH, the vehicle experienced a total loss of motive power. The vehicle was towed to the dealer, where it was diagnosed, and the contact was advised that the engine had failed and needed to be replaced. The vehicle was not repaired due to the cost of repair. The manufacturer was notified of the failure. The failure mileage was 164,696.”

“The engine on my 2022 GMC Sierra seized while driving. There were no warning lights or any other indicators that there was a problem. My vehicle had previously underwent the L87 Recall "fix" of changing the oil cap and using different engine oil.”

“Vehicle has been maintained at GM authorized dealership according to manufacturer recommendations. 6.2L recall was performed as recommended by manufacturer at approximately 25k miles. Engine failed at 36000 miles. The failure created a safety situation where vehicle suddenly lost propulsion power on the interstate. GM replaced the engine with a remanufactured engine. Vehicle was out of service for approximately 90 days. My family has lost confidence in the vehicle and unfortunately because of the now known issues with this engine the vehicle has lost significant value, making it nearly impossible to trade the vehicle in for something reliable.”

“While driving down the street pulling a trailer the engine stopped. I was able to get it to the side of the road. I called the GMC dealer and they dispatched a wrecker. No prior warnings, just a check engine light right before it failed and lost momentum. This is the second of three new trucks from GMC with engine failure, 1st was lifters, and the other two were bearing locked up. All maintenance was performed by the Dealership on all three trucks”