Rustle from underneath car - Ford Mustang Forum
 
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post #1 of 4 (permalink) Old 06-11-2014 Thread Starter
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Question Rustle from underneath car

When the car is relatively cold, I'm getting a rustling noise coming from underneath the car. Not sure if it is coming from the front or the back, but it's linked to the throttle (car doesn't make noise if coasting in neutral). Any guesses what that could be? Catalytic converter?

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post #2 of 4 (permalink) Old 06-12-2014
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if you said rattle I would guess heat shield on cat or if their is one the headers......autocorrect?


2012 V6 traded in for a 2017 VW GTI.
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post #3 of 4 (permalink) Old 06-12-2014 Thread Starter
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Thanks, it could be described as a rattle as well. Is that external to the catalytic converter? I'll have to get underneath it this weekend to check it out.
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post #4 of 4 (permalink) Old 06-12-2014
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The heat shields are external...you'll know it when you see it. I would get the car up on ramps/stands the night b4 then start it up crawl underneath with a block if wood to press up against the shield or whatever to see where the rattle is coming from. These things get burn hot quickly pay attention. If it is the shield you can try pulling on it to readjust, loosening/retighten bolts or what I've done on cars where the mounts are messed up some real large hose clamps around the shells to hold them together.

2012 V6 traded in for a 2017 VW GTI.
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