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Low Idle Rattle Seemingly From Dash Area - Exhaust?


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With my automatic, when I have my foot on the brake and the car is in DRIVE, the RPMs are low enough to cause a rattling noise that sounds like it is coming from the center stack where the stereo is. I figured it was my Sirius unit all this time, but I just took it all out and the problem remains. I can't identify any rattling in the stack area and believe it must be coming from the exhaust or heat shield or cats? Anybody have any similar issues and a possible fix? Axle back mufflers were checked and all seem tight. It could be coming from the X pipe area, I suppose?? It only does this in drive with my foot on the brake. If I shift into neutral at a stop, the RPMs raise enough to make the vibration/rattle go away.

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If I recall , there was a TSB 06-4-1 , rattle or noise coming from radio, heater or console area. It could be your exhaust hangers. I think the bulletin tells how to check hangers. Not sure if that is the problem; but it's one thing to eliminate.

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If I recall , there was a TSB 06-4-1 , rattle or noise coming from radio, heater or console area. It could be your exhaust hangers. I think the bulletin tells how to check hangers. Not sure if that is the problem; but it's one thing to eliminate.

 

 

There was a TSB on the exhaust hangers for the Xpipe/hpipe if they had them (stock), the hangers were attaching to the trans cross member and created excessive NVH in the cabin. I don't think the Xpipe that Shelby used had hangers on it though. if you have an aftermarket xpipe that still has the hangers it may be touching the trans cross member and creating the vibration you're speaking of.

 

Jeff

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