At 35,000 miles, my 2021 Chevrolet Tah started to misfire. When I pressed the accelerator, the truck started hesitating and the check engine light started flashing. I was able to get the truck to the dealer I purchased it at. The technician ‘claimed’ it was a bad fuel injector. The dealer replaced the spark plug and injector. The vehicle was never test driven. I picked up the truck and drove it on the road. Within 1 mile, the truck started to misfire again with the check engine light started flashing. The dealer claimed that the lifter or lifters in one engine bank were bad. The dealer replaced the lifters on the one side of the engine.