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Old 05-12-2006, 09:29 AM   #1
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Exhaust Rattle

Been noticing a rattling noise when I start and stop the engine. Crawled under and checked the entire exhaust system (fearing the dreaded collector weld) only to find that I can "rattle" the catalytic converter. Doesn't appear to be anything loose on the outside of the converter. Admittedly haven't taken the time to pull the t-case skid plate so I could really get to it either.

Doesn't sound like broken ceramic but none the less it rattles?
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Old 05-12-2006, 03:52 PM   #2
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Is it just the converter? Or can you rattle the whole pipe? Could be the ehaust hanger that attaches to the tranny mount? If not then probably your cat starting to go out.

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Old 05-12-2006, 04:53 PM   #3
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could be heat shield(s) top or bottom, I tore mine off when they started rattling. Could be disintigrating inside and your hearing the inards rattle around. Bang (tap) on the Muffler see if it cold be the rattle too.
'03 TJ Sport on 33's, 2"BB, 1"BL, 1"MML
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Old 05-12-2006, 06:04 PM   #4
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i had the heat shields rattle on me but specifically when i turn it off or on it rattles off my rear shackle just something to think of too if it is close
95 wrangler 4banger 5.25 " of lift sittin on 33's black steel rims Gone But not Forgotten

Tow Vehicle: 2003 GMC 2500HD duramax 6.6, 4 inch turbo back magnaflow exhaust, tow mirrors, 285/75/16 BFG A/T's Westin brush guard and steps, leer cap, K&N intake, Sirius sat. radio

dont waste your money on junk lifts, save a few extra pennies and get something good.
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Old 05-12-2006, 06:04 PM   #5
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Yea, i have the rattle too...Mines is due to a improper connection from the headers to the exhaust
95' Wranger
6 cyl. 4.0 L

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Old 04-21-2013, 05:58 AM   #6
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Mine rattles the whole pipe-what is that?? Not the heat shield...just put a clamp on that, even though that was a problem a little while back. It's louder right in that big part of the muffler underneath center-what part is that?

Each time you jump in, it's like a vacation! But what's that new noise!!!
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