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new rattle!!

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Old Sep 20, 2006 | 07:12 PM
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Default new rattle!!

on,well, i wasent sure where to post this so i figured i would start here!! Well, as the title says i have developed a new rattle!! It is definatly exhaust related!! I have heard that some guys get a rattle coming from the exhaust pipe hitting the k-member and them sticking a piece of rubber between the two! The rattle occurs when i put it in drive and when i hit the gas. Now, i had a 2000 RS a few years back and i know it was a v6 but i had a similar rattle and it seemed to be from the cats coming apart from the inside!!! So i hope this is coming from the pipes hitting and not the cats, cause thats alittle more expensive to repair. But anyway, please feel free to comment!
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Old Sep 20, 2006 | 07:16 PM
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I think it might be your y-pipe hitting the floor. You still have stock motor mounts?
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Old Sep 20, 2006 | 07:19 PM
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yes sir!
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Old Sep 20, 2006 | 07:25 PM
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I would start here. http://www.thunderracing.com/catalog...&vid=3&pcid=92

Bottom of the page. Prothane Motor Mounts. Between that and the poly mounts for the transmission, that seems to almost eliminate the problem.
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Old Sep 20, 2006 | 09:23 PM
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I have a new set of black Prothane Polyurethane Motor Mounts (Pair), 98-02 F-body for sale $53 shipped
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Old Sep 21, 2006 | 03:29 PM
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thanx alot bud, but i already went and ordered some new ones!!!
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Old Sep 21, 2006 | 08:51 PM
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Glad to hear it man! You will probably enjoy the ride quality much better. It is noticeable.
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Old Sep 23, 2006 | 11:07 PM
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What the **** did you break now? I dont think Ive heard of stock exhaust banging off anything before, I could be wrong though.
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Old Oct 18, 2006 | 07:08 PM
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hey bitch,(Dean) u wanna help put the new headers on?
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Old Oct 18, 2006 | 07:25 PM
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Your sig says waiting on headers. If you still have the stock exhaust manifolds and y-pipe. It's probably not either of those hitting the underbody. You might have a cat broken up or a exhaust shield rattling or even a loose exhaust clamp.

If you just put the headers on and the rattle just started, it's probably the y-pipe banging the underbody on the driver's side (been there.) Poly motor mounts or the mufflex bumpstop hanger should take care of it.
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Old Oct 18, 2006 | 07:41 PM
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ok, so even if it is a cat, when i put the new headers and catted y with new mounts i should be straight then? I am still waiting on headers so this a pre-headers rattle.
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