maXbimmer Forums - View Single Post

**T.Dot_E30** · 12-27-2012, 02:56 PM

what happens when you rev it a bit? Does it speed up? Sound like it could be the idler pulley or something driven by the serpentine belt.

12-27-2012, 02:56 PM	#3
T.Dot_E30 Classifieds Moderator Join Date: Apr 2003 Location: T.Dot / FL Posts: 9,749 Car: M3	what happens when you rev it a bit? Does it speed up? Sound like it could be the idler pulley or something driven by the serpentine belt. __________________