Quote:
Originally Posted by tigger184
How did you come to the conclusion it was the exhaust flap causing the problem?
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Drove the car for 30 min., parked the car, engine running in Park. I exited the car, walked to the back of vehicle, 30 sec. later heard a loud sound that is the valve closing ('clasp' sound), car shuddered for a millisecond at the time the valve closed.
Try it.