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Exhaust or catalytic converter issue
Posted by SDBWORKS (more from SDBWORKS) on Sun, 22 Jul 2001 12:06:32
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My 89 16v n/a has been making some exhaust noise recently - getting progressively more noticeable. I have isolated the source to the catalytic converter or the connection to it from the pipe in front. I have noticed both a sound similar to a hole in the pipe (although I can find none) and a buzzing rattle, mainly when hot. I also get a little popping/backfire when shifting between 1st & 2nd.
Heat shield above cat seems okay and tight. I tightened up the flange/clamp between the pipe to the cat and the cat...
Is this a symptom of something to do with the cat, and is there any way I can isolate?
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