Carbon buildup on the valves may illuminate the Check Engine Light, indicating "Multiple Cylinder Misfires." The combustion chamber must be cleaned of carbon. There are updated valve spring retainers that will help prevent a recurrence.
Average mileage: 126,672 (60,000–178,000)
Engines affected: 3.5L V6, 3.8L V6, 4.0L V6
29 people reported this problem