Ford Mustang Forum - View Single Post - 2014 Mustang GT Whistling Noise Inside Rear
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post #4 of (permalink) Old 07-14-2014
RandomForumGuy
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If you have louvers that will most likely be the spot. Whether it be old style looking ones, or the Eleanor kind. i had the same problem as you, so i checked the louvers and it turns out the 3m tape on one side came loose and caused the noise.
 
 
 
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