Rattle in the exhaust

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Feb 19, 2009 | 01:49 AM

camarolover209

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From: Modesto CA

Rattle in the exhaust

I have a 2000 camaro V6 3.8 Liter sometimes when i drive off or if im idling my exhaust tends to rattle and if i rev my motor it stops rattling and its been driving me INSANE and i have tried to deal with it for over a year wat should i do?

Feb 19, 2009 | 07:34 AM

slvr98camaro

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where is the rattling coming from?

my exhaust used to rattle against the driveshaft tunnel brace before i took it off and smashed it with a hammer a few times

Feb 19, 2009 | 10:01 AM

angel71rs

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From: TX

Catalytic converter can also rattle if the ceramic inside breaks. Smack with a rubber hammer and see if the insides sound loose.

Feb 19, 2009 | 10:52 PM

ghardester

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From: Knappa, Oregon

Quote:

Originally Posted by angel71rs

Catalytic converter can also rattle if the ceramic inside breaks. Smack with a rubber hammer and see if the insides sound loose.

I agree. I've had 2 3800 V-6's. My opinion is that your CAT is going out. Sounds like some gravel rattling around under the car somewhere. Well the stuff in the CAT is clumping up and you are probably a month or so away from getting a SES light and code.

Feb 20, 2009 | 01:20 AM

camarolover209

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From: Modesto CA

the rattle comes from the front and how do i make sure that the SES light doesnt come on?

Feb 20, 2009 | 01:22 AM

camarolover209

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From: Modesto CA

not from the front wat i meant is the back bumper im car is only a single exhaust and its right by the pipe it rattles somewhere there.

Feb 20, 2009 | 10:49 AM

ghardester

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From: Knappa, Oregon

Quote:

Originally Posted by camarolover209

not from the front wat i meant is the back bumper im car is only a single exhaust and its right by the pipe it rattles somewhere there.

When my CAT went out the rattle sounded like it was coming from under the passenger side floor board. If your rattle is coming further back you''ll just need to narrow it down and try to identify it.

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Feb 20, 2009 | 09:58 PM

nemss1

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From: Edmond, OK

my heatshields rattled because they were touching the top of the muffler. bent them upwards and solved my problem. check heatshields

Feb 21, 2009 | 12:35 AM

#10

TransAmFSAS

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A not so common problem I've seen before is the over-axle pipe rattling on the cross member. Give that a look too maybe, they should not be touching.

Feb 22, 2009 | 12:39 PM

#11

01Farburd

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I feel your pain. Mine rattles too. My tailpipe was hitting a little bit but I used a long metal rod and bent it a little. Now it is rattling again!! The best thing to do is get under there while it's running and see where the noise is coming from.