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Old 09-25-2012, 03:08 PM   #5
henninne
Registered User
 
Join Date: Jun 2012
Location: Norway
Posts: 14
My Ride: E46 320i
Did you ever solve this problem? I have the symptoms. When running at a constant speed (low rpm <2000) the rev jumps up and down. I think the rumbling you hear is a result of the uneven rev.
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