Check Engine Light On problems of the 2007 Chevrolet Suburban

My vehicle was having trouble starting and idling rough. I brought it in for repairs and was told it needed a new fuel pump and air filter. I had those changed in total spending $1700. Three days later, the check engine light started flashing in my car. I could feel the engine misfiring and was losing power. The oil pressure was fluctuating rapidly. I drove it back to my home and had it towed to the dealership. I was told that the cylinder 4 was misfiring caused by the cylinder deactivation failure which is caused by the automatic fuel management system. This is causing the lifter to fail.

The contact owns a 2007 Chevrolet Suburban. While attempting to start the vehicle, it began to shake and the check engine light illuminated on the instrument panel. The vehicle was taken to the dealer, but the failure could not be duplicated. While driving at various speeds, the vehicle began to slow down and the reduced engine power indicator illuminated on the instrument panel. As a result of the failure, the vehicle was almost t-boned by a tractor trailer. The vehicle was able to be maneuvered to the side of the road where it was restarted successfully. The vehicle was taken to the dealer where it was diagnosed that the throttle body and the brake switch would need to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was brought back to the dealer where it was diagnosed that the wiring to the ecm connector 2 and wiring harness needed to be changed. The vehicle was repaired, but the failure recurred shortly after the repair from the dealer. The manufacturer was made aware of the failure. The failure mileage was 67,200.