Still have low freq vibration (95 A6Q)

[Joshua Van Tol]

A loose CV joint will make a vibration, and since you've recently had it
off, I'd say checking it would be a very good idea.


On Tue, Sep 22, 2009 at 6:05 AM, <beattyr2003 at cox.net> wrote:

> I posted about this oh about a week ago and only saw a couple responses,
> neither of which could be the problem.
>
> I have noticed some more things about the symptoms.
>
> Its most noticeable at speeds around 20-40mph.  Its irrelevant to having
> the car in gear or in neutral, clutch in or out.  I had said before it went
> away when I turn, thats wrong, it doesnt go away turning it stays the same.
>
> The best way I can think to describe it is if you were driving on a very
> finely cut rumble strip in the road.  Or grooved pavement.  It also
> feels/sounds? like its coming from the rear of the car.
>
> Since its not dependant on the engine being engaged, I can rule out
> anything motor related.
>
> I know what wheel bearings going out usually sound like, they howl at
> nearly all speeds instead of vanishing at 50+ mph.  So that rules out
> bearings.
>
> I am left with thinking its either something in the rear drivetrain, or my
> tires somehow have worn in an odd fashion to cause this odd noise.
>
> Anyone got any ideas on this?
>
> Things I have done with the car recently are replacing the prop shaft rear
> CV joint over the summer and I just replaced both rear tie rods.  I have
> verified that the center bearing support has not come loose nor does it look
> like its in terrible shape.  I could crawl back under the car and verify
> that my CV joint bolts havn't started loosening up, but other than that or
> swapping all 4 tires out, I am kind of at a loss for where to go next.
>
> Thanks,
>
> Rob
> 1995 A6Q (271k miles)
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