Q: Rattling in what we believe is the catalytic converter? on 1998 Jeep Grand Cherokee

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Has anyone ever had a rattling noise which appears to come from the catalytic converters? What did you do to fix it?
(4) Answers
cut the bottom of it open 3 sides bend it open pull the insides out and bend the cut peice back up and either have it welded or exhast tape it closed
If the catalyst material inside the catalytic converter is rattling, the cat will need to be replaced. If you crawl under the Jeep, you can use your fist to pound (hammer fist) on the exhaust. You can get rattles from the cat, muffler, heat shields, etc. If it is the cat is rattling, you will know it when you bang on it. Be certain the rattles are not heat shields that have come loose.
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