Vibration at idle and when reversing.

2003 VOLKSWAGEN PASSAT
160,000 MILES • 2.8L • V6 • AUTOMATIC
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SHAHRANA
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  • 2 POSTS
car vibrates when its idle. Its worse when reversing. vibration goes away as soon as i press accelerator.
Feb 19, 2014 at 7:33 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Is the idle speed properly set? Have you checked for vacuum leaks on the engine? When was the last tune up?
Feb 20, 2014 at 12:34 AM
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SHAHRANA
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  • 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.
Feb 20, 2014 at 11:49 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Is he referring to the fuel pressure regulator? If so, that can cause it.
Feb 25, 2014 at 8:58 PM
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