Debra, my bet is that the o2 sensor is loose and just needs to be tightened,
screwed in. This seems to happen to mine a least once a month for some
reason. Not hard to accomplish.

Bob Stevens

http://groups.msn.com/BobsPhotoShare
http://groups.yahoo.com/group/tiico

----Original Message Follows----
From: Debra Clark <clark10006@COX.NET>
Reply-To: Debra Clark <clark10006@COX.NET>
To: vanagon@GERRY.VANAGON.COM
Subject: Catalytic converter noise
Date: Sat, 8 May 2004 08:22:05 -0700

Just in the last couple of weeks, I've started to hear a sort of rattling
noise from the rear.  It becomes faster and more pronounced as I step on the
gas.  Upon closer inspection, it seems to be coming from the catalytic
converter which, I assume, is original equipment.  I have a 90 multivan with
about 148,000 miles and it was successfully smogged about a year ago so I
have another year to go before another.  My questions are:  Is this noise
typical for a failing cat?  Are they difficult to change out?  And if I just
live with it for now, will there be increasing noise or other consequences?
I did search the archives but these things weren't covered.

Thanks, Debra