Any Thoughts on the Likely Cause of this Noise & Vibration?

[Paul Caouette]

Check your lug bolts....

paul from my droid
On Dec 14, 2011 8:29 PM, "Marc Boucher" <mboucher70 at hotmail.com> wrote:

> Drove about 1/2 hour on the highway tonight.  On the return, noticed a
> noise, along with a slight vibration when first entered the highway.  Since
> noise hadn't been there on the 1/2 hour drive before, figured it was just a
> rough road surface.  But after a few minutes of this, realized it was the
> car.
>
> Felt almost like a tire was bad.
>
> Realize this could be many things...but here's one possible clue.  When
> driving at highway speed the noise/vibration is small, but noticeable.
>  When I take my foot off the gas pedal and let it coast for a few seconds,
> the vibration intensifies even though the car is actually slowing down.
>  Finally, when exiting the highway, even thought the speed is slower, the
> vibration once again intensifies as the car enters the curve of the exit
> ramp.
>
> Second clue, there was no vibration in the steering column, it was more
> throughout the car.  Car steers dead straight, doesn't pull whatsoever to
> either side.
>
> Car is 1990 Audi 100, not a quattro.
>
> Any thoughts?
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