Popping noise

[Audi-Dude]

In my 90 A90 it turned out to be the rubber exhaust supports had rotted and
was making the cat rattle.  Sounded like a bad motor mount or something -
eventually the last two snapped and she was dragging.  Very quick repair to
do.

HTH

Ben


----- Original Message -----
From: "Doug Yoder" <yoderw at msoe.edu>
To: <quattro at audifans.com>
Sent: Sunday, September 28, 2003 2:48 PM
Subject: Popping noise


> Hi all-
>
> Recently I've been noticing a loud popping coming from the engine
> compartment of my '91 100.  It happens when there is an increase in load
> on the engine:  when going up large hills, accelerating in low gear
> (usually from a stop when I try to accelerate hard - have to take it
> easy), or worse, accelerating up a hill.  Because it seems to be related
> to load, I'm thinking it's a leaking vacuum problem (I had the manifold
> apart recently to change the valve cover gasket, may not have clamped
> something down enough?)  I'm going to check some of the hoses this
> afternoon, and was wondering if anyone had any other ideas.
>
> Thanks in advance, and enjoy the nice weather while we have it (as I'm
> looking at the weather forecast in the paper...)
>
> -Doug
>
>
>