[Biturbos4] Startup Noise 2002 S4
adlere at attglobal.net
Fri Apr 4 08:35:27 PDT 2008
I've never replaced the pump myself but from what I've heard its not too
bad. Its normal for the pump to make some noise so it may not even be
bad yet, but if its really loud and getting louder its probably on the
way out. Its when it dies and stops making any noise that you'll
probably get a CE light and then you'll definitely need to replace it to
pass any sort of emissions test. I would expect the car to drive fine
even after it dies as its just for emissions right after startup.
Long, Scott G A1C USAF AFMC 88 SFS/S4W wrote:
> I do have a tiptronic. Is this a common problem? How hard to replace?
> I've never heard of this. Could it be low on trans fluid causing this?
> I just recently had a new torque convertor put in and it shifts fine but
> maybe the fluid is low. I haven't checked it.
> Scott G. Long
> -----Original Message-----
> From: Al Adler [mailto:adlere at attglobal.net]
> 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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