squealing noise in engine bay

[Phil Haag]

Mike, I had a similar problem.  I think the noise could be due to air 
leaking around rear main seal.  While engine is running and making the 
"squeal" noise loosen your oil fill cap briefly.  If it is your rear main 
seal the noise should cease.  Rear main seal hardens and allows air to be 
sucked in around shaft and seal, as engine crankcase is under vacuum.  Fix 
is new main seal, or a good stop leak, like CCD.  Stop leak fixed my 
problem, by softening seal and allowing it to hold against air pressure, and 
after only hundred or so miles. Good luck.

Phil
1990 Audi 200 TQA, 143,000.


>From: "michael" <tarheel at one.net.au>
>To: <quattro at audifans.com>
>Subject: squealing noise in engine bay
>Date: Tue, 5 Dec 2000 19:49:22 +1000
>
>Hi , Michael again, in the last couple of days my car has developed a noise 
>that sounds like a fan belt squealing noise. On closer inpection after 
>lifting the hood the noise sounds like a bearing noise ,coming from towards 
>the back of the engine, perhaps the fuel pump, distibutor or turbo ? My car 
>is a 200 turbo fwd 1990 model with only 120000 kms on the odometer
>
>                                     regards Michael Anderson
>
>ps anyone planning a trip to Australia drop me a line ( the dollar exchange 
>for US to AUS is good at the moment)

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