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2000 Audi A6 Engine rattle

Tiny
DICK71
  • MEMBER
  • 2000 AUDI A6
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 85,000 MILES
I've noticed a noise coming from the engine when I take my foot off the accelerator (coasting) it is a high pitched squeaky type rattle. It is more noticable after the car warms up. The faster I am going the faster the rattle is.

Just this morning, I've noticed another noise that is a deeper rattle that occurred as I accelerated. This was louder when the enigine was cool and decreased when the engine warmed up.
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Wednesday, December 9th, 2009 AT 11:07 AM

1 Reply

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok without hearing the noise I can only tell you what may cause it. So I looked up TSB for you car and found that there is a service buliten on engine noise and they say it may be caused by any one or all of the following. It may be camshaft chain tensioner or camshaft adjusters or followers. If this is the problem according to the bulliten there is no fix the noise will not go away by replacing any of these parts and that there is no warranty on this either. So I would check it out or have it checked out to see if that is the problem or not. The TSB on this is group 15, number 07-03 (2010294/4). It also could be the smog pump or the power steering or?
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Thursday, December 10th, 2009 AT 10:22 AM

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