Rattling heat shield noise but have headers installed - Lexus IS Forum
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post #1 of 3 (permalink) Old 01-28-2018, 09:52 AM Thread Starter
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Rattling heat shield noise but have headers installed

Hello everyone this is my first post here. Been reading on here for years to solve my problems and contributing when i can, but finally i am stumped. I have a rattling noise coming from the front/shifter area. It sounds like a heat shield type of rattle but i have no cats as i replaced the with headers. This happens above 2500 rpm and only on acceleration. If i rev it in neutral it does nothing only when in gear accross all gears. Not sure if its a clutch issue or something mre serious. Any input of different solutions you may have had would be appreciated.
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post #2 of 3 (permalink) Old 01-28-2018, 11:37 AM
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First thing I'd check would be:
1: Go back over all the nuts and double check that they didn't back themselves out.
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post #3 of 3 (permalink) Old 01-28-2018, 01:18 PM
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yeah, sometimes the bolts can come loose if they aren't on REALLY tight.

Also, maybe it's just how the new catless header sounds? Can't really tell, without a soundclip. Catless headers sound raspy
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