Maybe the former contents of your cat are now lodged in the muffler?

At 08:27 PM 7/14/2004 -0400, Shawn Luft wrote:
>Please help !  I'm experiencing exhaust problems..................
>
>Two weeks ago my van was running great, but blew a hole in the elbow pipe
>that connects to the cat.  I replaced the pipe, and have since had a
>hard-to-notice loss of power.
>
>I then suspected the catalytic converter and disassembled one side of the
>pipe to take a look, however I eliminated this as a cause b/c the
>catalytic converter seems to have been hollowed out by time or the P.O.
>
>But now.... after re-assembling my exhaust I now have black smoke coming
>out the back and it's driving "funny" !!
>
>Is it possible my muffler is bad?  Or maybe something more serious?  All
>help appreciated because we're leaving for holidays on Friday.
>
>Thanks,
>Shawn.
>
>
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>I