Five problems related to power train have been reported for the 2008 Chevrolet Silverado. The most recently reported issues are listed below.
The contact owns a 2008 Chevrolet Silverado. While in park, the vehicle shifted into reverse independently. As a result, the vehicle started to roll away and ran over the contact. The contact sustained a fractured left side collar bone and shoulder and stomach bruises that required medical attention. The manufacturer was not notified of the failure. The police was not notified. The vehicle was not taken to the dealer or an independent mechanic. The approximate failure mileage was 60,000.
My truck stayed parked for 10 days while on vacation. It was running fine when I parked it. Upon returning from vacation I tried to start it and nothing! it wont even try to turn over. After having a private mechanic look at it he said the fuse block under the hood has a short in it. How can it short out just sitting there? this could be a fire hazard & a safety issue!! I have 2 small children & if I were driving & it caught on fire we all could be injured!!!!!! this should open gm's eyes to have a recall on this vehicle.
While towing a 5th wheel trailer in 98 degree heat, the vehicle went into reduced power mode. The vehicle turbo was diagnosed as the problems with the variable vanes locking in position. I believe this is a known condition with the duramax lmm engine. On the open highway pulling a trailer this creates a hazard for the driver and other traffic as the sudden loss of speed is unexpected. Warranty was denied although there is a technical service bulletin regarding similar symptoms.
Both (upper and lower) transmission cooler lines leaking. Dealer advised both lines needed replacement at cost of $988. 88, and not covered by the power train warranty. Appears to be leaking from crimp area on both lines. Independent transmission shop advised stock (gm) cooler lines cannot handle the pressure of the allison transmission. Recommended replacement with aftermarket braided lines.
2008 Silverado ltz-44. 000 mi. Upon stopping veh. Engine wouldn't stop when I applied the brakes, placing engine in neutral rpm,s went to 3x100, place back in drive it drop into normal zone. I nearly collided with a veh. In front of me also ran a red light at another time as engine got a life of its own. Chevy dlr inspd same said a pip had been issued for faulty throttle carbon build up. Repair same to no avail. This happens not all the time. So far chevy is unresponsive. This is a dangerous situation.