Re: Exhaust Rattle in Cats?

[Jason Aamodt <Jason-aamodt@utulsa.edu>]

Have you guys looked at the heat shield?  I had the same sound (from your
description), and someone on this list told me that it might be the heat
shield.  It was.  I clamped it with a large clamp (you know, like the ones
used on the backs of clothes dryers) and its been good since.  It was a
great $0.69, 5 minute fix!

Good luck

Jason

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>Date: Tue, 16 Feb 1999 11:02:44 -0500 (EST)
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>From: "G. Benedikt Rochow" <rochow@segosf.hlo.dec.com>
>To: quattro@coimbra.ans.net, EUSPOS@am1.ericsson.se
>Subject: Re: Exhaust Rattle in Cats?
>Sender: owner-quattro@coimbra.ans.net
>
>
>>Peter Dowker wrote:
>>Noise sounds like a loose flap or pebbles in a can, sort of a rhythmical
>>clank, varies with speed
>>
>>Peter,
>>It is very possible that the innards (all or parts) of your catalytic
>>converter are now hiding in the center or rear muffler. It happened to my
>>car. Same "strange" noise, didn't understand it first. When I took the
>>mufflers off to clean them out, entire innards from converter came out. The
>>honeycomb ceramic from the cat looks very much like charcoal.
>>I'll check the following link for good prices on cats:
>>http://www.discountconverter.com/converters/audi/index.htm
>
>Hmm, I've got this sort of rattle too. Moron PO said that cat was gutted,
>but the car still passed emissions testing quite well last year
>(after 2 oil chnage and a new air filter).
>Is it possible to 'empty' the muffler(s) w/o cutting/welding?
>(What exactly did you do?)
>I can handle nuts and bolts, and would of course prefer to
>do this my$elf.
>
>-gbr 
>
>