exhaust question
hey ive been getting rattle from the back everytime i push the gas and ive heard a lot of people saying that is common on camaros because the pipe rattles on the rearend. what do you guys think? is there anyway to fix this?
Re: exhaust question
I would put my money on two things: either you have a defective catalytic converter and you are hearing the catalyst material rattling around in there, or the intermediate pipe of the catback exhaust is rubbing on the rear axle. I had the problem with my old catback banging on the rear axle so I got some header wrap and wrapped up the trouble spot. That made things much quieter.
Re: exhaust question
The 3.4's y-pipe is double walled to allow for noise damping. If you look at it there are dimples all along the ypipe. I would bet that one of these welds has broken loose from the inside and is causing the rattle. Best way of telling this is to put the car up on stands and then hit the ypipe w/ your hand see if it rattles. If it does then just take it up to your local muffler shop and have them tack weld the dimples again and it should stop. That is what happened to a few ppl I know, as well as myself. good luck, l8tr
Re: exhaust question
Originally Posted by 94 Green Machine
theres a heat sheild that will rot off the exaust it did on mine i took it off and that rattle was gone thats prob it but good luck
Re: exhaust question
Originally Posted by sick94
The 3.4's y-pipe is double walled to allow for noise damping. If you look at it there are dimples all along the ypipe. I would bet that one of these welds has broken loose from the inside and is causing the rattle. Best way of telling this is to put the car up on stands and then hit the ypipe w/ your hand see if it rattles. If it does then just take it up to your local muffler shop and have them tack weld the dimples again and it should stop. That is what happened to a few ppl I know, as well as myself. good luck, l8tr
Thanks
Last edited by nosgbody; Oct 7, 2006 at 03:41 PM.
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