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Vibration at idle and when reversing.

Tiny
SHAHRANA
  • MEMBER
  • 2003 VOLKSWAGEN PASSAT
  • 2.8L
  • V6
  • AUTOMATIC
  • 160,000 MILES
Car vibrates when its idle. Its worse when reversing. Vibration goes away as soon as I press accelerator.
Thursday, February 20th, 2014 AT 3:33 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Is the idle speed properly set? Have you checked for vacuum leaks on the engine? When was the last tune up?
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Thursday, February 20th, 2014 AT 8:34 AM
Tiny
SHAHRANA
  • MEMBER
  • 2 POSTS
I had the car serviced two weeks ago. The mechanic there told me that it could be because of the pressure regulating valve leaking. I am not sure about the idle speed.
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Friday, February 21st, 2014 AT 7:49 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Is he referring to the fuel pressure regulator? If so, that can cause it.
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Wednesday, February 26th, 2014 AT 4:58 AM

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