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Diffenrential whine

Diffenrential whine

From gti-vr6-ownerdev.tivoli Fri Oct 9 22:51 CDT 1998
From: deeceeexit109
To: "Peter Fellingham" <pfellinghamrgi>
Subject: Re: [gti-vr6] Diff Whine
Date: Fri, 09 Oct 1998 22:58:24 -0400
Cc: gti-vr6dev.tivoli
 
At 11:24 AM 10/8/98 -0700, you wrote:
>My 96 GTi VR6 has had a diff whine since new when lifting almost
completely off
>the throttle after traveling at constant speed.  It only happens when
there is
>a very small load on the gears, but not when I lift my foot completely and go
>into engine braking.
>
>There is no diff noise at wide open throttle, so I have always figured
that the
>diff gear center spacing was set up to be optimal under load.  I think the
gear
>mesh is a little too "tight" under very light load, but is correct when the
>gearbox structure springs under load.
>
>This whine has not become better or worse in 12000 miles - another "normal"
>sound for my car.  Does anyone else have this noise?
>
>Peter  
>
Peter,  Without driving the car I am only guessing. To me I have heard and
had to fix other cars with a similar noise. While driving at a constant
speed you take your foot off the gas and coast and the noise appears. re
accelerating the noise disappears and so on.
I have seen the pinion gear have a small chip and when it rides on the
coast side of the ring gear you hear it. When it is on the acceleration
side the noise is gone.

I suggest you take it o a VW dealer and depending on when you purchased the
car new or used? It might be covered under the power train warranty.

Don
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