Drive belt noise or squeal

Accessory drive belt noise or squeal
Possible Source(s):
^ Accessory drive belt pulley(s).
^ Lubricant or other contamination.
^ Accessory drive belt.

Action(s) to take:
^ DETERMINE where the noise is coming from. CHECK pulley alignment, freedom of rotation or damage. REPAIR or INSTALL new parts as necessary.
^ CHECK accessory drive belt for contamination. If contaminated, INSTALL a new accessory drive belt.
^ CHECK accessory drive belt for correct application.