8.9% of complaints about the 2008 Chevrolet Corvette Z06 came in the first year, which is unremarkable for a 2008 vehicle — around the middle of the 262 model-years on record. The median complaint arrives at 7.3 yr in service. The most-reported system is engine (25 complaints), typically at 7.5 yr or about 28,000 miles.
VEHICLE TAKEN TO DEALER FOR EXCESSIVE VALVE NOISE. INSPECTION SHOWED EXCESSIVE WEAR OF VALVES AND VALVE GUIDES...OUT OF SPECS. ENGINE HEADS AND VALVES TO BE REPLACED UNDER WARRANTY. *TR
CONCERNED ABOUT THE NUMBER OF DROPPED VALVES IN THE LS7 ENGINE USED IN THE CORVETTE Z06 THAT MAY RESULT IN A BLOWN ENGINE CAUSING A CRASH OR FIRE. I HAVE PRETTY MUCH PARKED MY 2008 Z06 DUE TO THIS CONCERN AS GM REFUSES TO ACKNOWLEDGE THAT THERE IS A PROBLEM BUT EMPIRICAL EVIDENCE ON PUBLIC USER FORUMS SHOWS THAT THERE IS A PROBLEM AND GM SHOULD ADDRESS AND FIX. I URGE THE NHTSA TO LOOK INTO THIS MATTER AS A MAJOR SAFETY CONCERN! *TR
HAD MY VALVES CHECKED TO SEE IF THEY WERE OUT OF SPEC. I HAVE ATLEAST THREE EXHAUST VALVES THAT ARE OUT OF SPEC. AND I'M AFRAID TO EVEN DRIVE THE CAR FOR FEAR OF DROPPING A VALVE IN THE MOTOR, THUS POTENTIALLY CAUSING OIL OR ANTIFREEZE TO LEAK AND GET UNDER MY TIRES CAUSING ME TO WRECK MY $60,000 CAR, OR CAUSE HARM TO MYSELF OR TO OTHER DRIVERS. THIS IS A BIG SAFETY ISSUE FOR ME AND OTHER DRIVERS, NOT TO MENTION THE COST OF REPLACING THE MOTOR. *TR