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Old 06-21-2012, 03:35 PM   #7
smooth1
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Join Date: Nov 2005
Location: Phoenix
Posts: 269
My Ride: BMW FTW
It's a screechy whistle, so I see how that could sound metallic... There are some videos on youtube of people trying to diagnose this issue, so maybe you can find one that confirms the sound for you.
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