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      01-24-2013, 01:05 PM   #22
cyman83
First Lieutenant
United_States
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Drives: 2011 E90 M3
Join Date: May 2010
Location: Houston, TX

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Quote:
Originally Posted by mryakanisachoad View Post
throttle butterfly tick

valve tap


tick > tap


or, it could something electronic.
i had similar sound, it turned out to be my serpentine belt.