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      03-15-2013, 04:35 PM   #8
GriffBrew
Second Lieutenant
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Drives: 2006 M Roadster
Join Date: Jul 2012
Location: Orlando, FL

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Left it with the mechanic this week. He heard it only slightly on cold starts. He thinks the sound is emanating from behind the crank balancer, but not exactly sure where or what it is. When I went in to get it today, it wasn't making this noise on cold start. It started to make it pretty faint after a while, but it's hard to say its the same noise, since the volume is now lower.

I'll be watching this closely for a while, I guess. It's pretty odd and very frustrating its so inconsistent.
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