Exhaust rattle

**CHUCK** · #1 (**permalink**) 02-08-2008, 12:23 PM

I am hearing a rattle? coming thrugh the exhaust. I have a 3" DP, that runs to a piece of 4" exhaust pipe about 4' long. It stops aprox. 1" under the bed. I have checked and all the clamps are tight. It does it while the truck is idleing, but only for a few seconds. Its starting to get me worried that theres something internal going bad... Anyone got any ideas?

***vitalidle*** · #2 (**permalink**) 02-08-2008, 12:27 PM

Check to make sure its not making any contact with the firewall.

**CHUCK** · #3 (**permalink**) 02-08-2008, 12:54 PM

ok. i'll check. The dp has been on for about a year or so, and I havent had any problems with it hitting the firewall, or any other noise issues...but who knows.

***vitalidle*** · #4 (**permalink**) 02-08-2008, 12:56 PM

Hmm maybe check it over real good while its ideling at startup and see if you can pinpoint where its coming from.

**CHUCK** · #5 (**permalink**) 02-09-2008, 04:52 PM

Found the rattle. The last exhaust hanger that I'm using, the pipe side, had came out of the rubber piece.

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