Does it change with engine speed, or go away? One way to narrow it somewhat is to remove the serpentine belt to stop accessory rotation. If it goes away, accessories may be at fault. At that point, the crankshaft, and torque converter would be the largest rotating mass. Is there a check engine light on/flashing, this would indicate potential misfire.
Saturday, June 26th, 2010 AT 10:29 AM