737-800
05-04-2009, 07:12 PM
1998 A4 1.8t
After accelerating hard,when lifting off the accererator there is a strange slapping and bouncing noise. It sounds like a butterfly valve bouncing shut.
First I thought it was the throttle body now im starting to think its related to the turbo.
Any one got any Ideas before I pull the hole lot apart?
After accelerating hard,when lifting off the accererator there is a strange slapping and bouncing noise. It sounds like a butterfly valve bouncing shut.
First I thought it was the throttle body now im starting to think its related to the turbo.
Any one got any Ideas before I pull the hole lot apart?