Geoffrey Card
New member
My Corvette is a 6 speed automatic with 32,000 miles recorded. When cruising in slow traffic say between 30 and 50 mph the engine will run in 4 cylinder configuration. As soon as the throttle is mildly applied the configuration will immediately change to 8 cylinders with a rough drive line clunk. This happens about 75 percent of the time. Also, when slowing for a low speed right turn the change down and transmission engagement is sometimes rough. What remedial actions can be taken and are there any service bulletins?