Thumping under floor board
07-21-2011, 10:38 AM
#16
CF Veteran
Anti-Thumper
Check your exhaust pipe where it passes over the cross member near the cat. You should see a hanger/bracket that looks like the "L" shaped thing in the photo. Obviously, this is a replacement part where the clamp fits around the pipe and the rod inserts into a receiver mounted on the right (passenger) side of the trans tail shaft - atop the cross member. The original equipment consists of a rod welded to the pipe.
Last edited by Cherryokee; 07-21-2011 at 10:42 AM.
08-01-2011, 08:38 PM
#18
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Join Date: Feb 2011
Location: Highlands Ranch
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Year: 1991
Model: Cherokee
Engine: 4.0L HO
Well, I had taken the Jeep off road over a lot of washboard roads. I found I lost a nut on my passenger side motor mount, and a nut off of the exhaust mount near the transfer case cross member. I replaced both parts and voila, no knocking noises. Thanks for all the suggestions and help.
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