NHTSA Complaint #11318547 — 2007 CHEVROLET CORVETTE
ENGINE issue reported to NHTSA
Complaint Details
| ODI Number | 11318547 |
| Vehicle | 2007 CHEVROLET CORVETTE |
| Component | ENGINE |
| Date of Incident | |
| Date Filed | |
| Mileage | 24,139 miles |
| Crash | No |
| Fire | No |
| Injuries | 0 |
| Deaths | 0 |
| Vehicle Towed | No |
| State | AL |
Consumer Description
2007 CHEVROLET CORVETTE ZOS WITH LS7 ENGINE - EXCESSIVE ENGINE VALVE GUIDE WEAR - PER THE GM VALVE WIGGLE TEST MY CAR WAS FOUND TO HAVE UP TO 3 TIMES THE ACCEPTABLE ENGINE VALVE TO GUIDE CLEARANCE AT 24,139 MILES. SOME LS7 ENGINES HAVE HAD THIS ISSUE, BREAKING A VALVE DUE TO THE EXCESSIVE CLEARANCE CAUSING THE ENGINE BLOCK TO BREAK OPEN, SPILLING OIL ONTO THE REAR TIRES WHILE LN FORWARD MOTION CAUSING A SERIOUS SAFETY CONCERN. DUE TO THE SAFETY CONCERN THE ENGINE WAS DISASSEMBLED AND REPAIRED. GM HAS KNOWN OF THIS ISSUE AND REPLACED MANY LS7 ENGINES WHICH DID EXPLODE DUE TO THE VALVE GUIDE WEAR ISSUE.
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