Quote:
Originally Posted by frank1557
My cats aren't damaged from outside. Think thu could still be internally damaged?
And I came I he conclusion that it could be my plates underneath. I didn't realize how thin they are.
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Did you find and fix it?
Do you have any exhaust or engine mods?
If its still there, and you have it in the air, or can get it under it, when the exhaust is cooled down, hit the exhaust with your hand or rubber mallet to get the noise to come, that will help you locate the exact noise, and probably why its happening.
Even though the cats aren't damaged externally, the stuff inside can still break apart, and rattle. You'll be able to tell by hitting the exhaust if its them or not. It rarely happens, and when it does is usually caused by a bad tune.