That is known as the alternator drive belt.
With engine stopped, note if the crank pully, alternator and water pump pullies are lined up in a straight line.
Loosen the belt test the alternator and water pump pully for side movements. There should be none. Check for damaged pully grooves.
Please consider a to help us answer more questions.
Wednesday, May 25th, 2011 AT 1:39 PM