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Knocking or tapping noise??

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Old 02-15-2010, 04:05 AM
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dmroberson
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Default Knocking or tapping noise??

Ok, so I've had my headers on for a little while now. Absolutely love them. But, I'm hearing what sounds like a knocking sound, like they're bumping something. Haven't been able to identify this yet, but still looking.

Anybody notice a bumping sound when the engine is running? Like I said, sounds like the headers or something else, is rattling against something under the car.

Sorry for being so vague, but that's the best I can do at this point.
Old 02-15-2010, 04:13 AM
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Jay'Z
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Yes its normal, either its tapping something or its been there forever and you only notice it now because your paying attention after the header install.. I have all kinds of sounds that scare me.. I have been going good for almost 4yrs built engine/FI though..
Old 02-15-2010, 05:18 AM
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CeBrwn5454
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I installed headers a while back and noticed a few new noises.

My problem was the bracket that secures the cats/tp's broke on both sides and was rattling. Weld them back to their original place and you're done.

Good luck.
Old 02-15-2010, 05:38 AM
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davidv
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Guess I would have to get under the car while it is running and look.
Old 02-15-2010, 05:47 AM
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Zazz93
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I noticed stock cats had a broken bracket (probably from touching down on speed bumps and steep driveways). I can imagine that making a similar noise.
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