[Biturbos4] Startup Noise 2002 S4
Long, Scott G A1C USAF AFMC 88 SFS/S4W
Scott.Long2 at WPAFB.AF.MIL
Fri Apr 4 11:33:16 PDT 2008
Are you sure it will set a check engine light if it doesn't run? Is
there any way to disable this pump through tuning the computer? It is
probably the pump because today I was standing by the left front wheel
and it didn't necessarily sound like it was coming from the engine, more
like from the middle of the car under the drivers side door position.
What is the technical name for it? I've googled Audi tiptronic air pump
and tiptronic emissions pump and found nothing. I'd like to price one
out and see how to replace.
Scott G. Long
From: biturbos4-bounces at diablo.audifans.com
[mailto:biturbos4-bounces at diablo.audifans.com] On Behalf Of Al Adler
Sent: Friday, April 04, 2008 11:00 AM
To: Long, Scott G A1C USAF AFMC 88 SFS/S4W
Cc: biturbos4 at audifans.com
Subject: Re: [Biturbos4] Startup Noise 2002 S4
If you have a tiptronic its probably the air pump that you're hearing.
Manual's don't have them. It only runs for a short time after a cold
Long, Scott G A1C USAF AFMC 88 SFS/S4W wrote:
> When I start my car after it's been sitting for a while (morning or
> after work) it makes a high pitched whirring/grinding sound from the
> left side of the engine for about a minute, after that it stops. It
> runs and drives fine. If I rev the motor while it's making this sound,
> the tone does not change at all, it stays constant. Because it stays
> constant I don't think it's turbo related.
> Any ideas what this may be?
> Scott G. Long
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> Biturbos4 at www.audifans.com
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