I have a noise coming from my exhaust too, mostly at idle. Sounds like a
metal plate vibrating in the muffler. I'm pretty confident it is the
muffler though, when you look at it you can see the outer shell starting to
let loose at the seams. The only thing holding together I think is the
metal band wrapped around it.

Shawn


"Ben" <bmccuneATknology.net> wrote in message
news:10g793c29i6nq70@corp.supernews.com...
> I agree.. It sounds like the CAT.. When I heard mine going.. It sound
like
> the exhaust system was falling apart... And because the CAT is connected
> directly to the muffler (Atleast on the YJ).. It could make it sound like
> something is in the muffler.. Almost sounds like a bunch of marbles are in
> the exhaust system..
>
> Ben
> 95 YJ 2.5L
>
> "twaldron" <thomas@OBVIOUSrubicons.com> wrote in message
> news:8wJMc.20302$9r5.11806@newssvr23.news.prodigy. com...
> > You sure it's not your catalytic converter that's given up the ghost?
> >
> > davebz1a@optonline.net wrote:
> > > I have a 97 cherokee sport 4.0L that the muffler is starting to go.
> > > You can hear it rattling inside the muffler. Jeep wants $180.00
> > > (30%off) for the muffler and tail pipe. Since it's a one piece unit
> > > and the pipe is made of Krell, which rusts a little and dosen't rot
> > > out, has anybody cut the tail pipe close to the muffler and bolted on
> > > a replacement muffler, using the origional tail pipe? If so what
> > > muffler did you use?
> >
> > --
> > __________________________________________________ _________
> > tw
> >
> > 03 TJ Rubicon - Rubicon Express 4.5"
> > 01 XJ Sport
> >
> > There is a very fine line between "hobby" and "mental illness."
> > -- Dave Barry
> >
> > Pronunciation: 'jEp
> > Function: noun
> > Date: 1940
> >
> > Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
> > A small general-purpose motor vehicle with 80-inch wheelbase,
> > 1/4-ton capacity, and four-wheel drive used by the U.S. army in
> > World War II.
> >
> > (Please remove the OBVIOUS to reply by email)
> > __________________________________________________ _________
> >
>
>