Start by checking belt alignment, look down belt and make sure they are aligned with balancer.
If OK, then check belt for contaminates, like oil or coolant.
If OK, then check the balancer, make sure it is tight, there is a large bolt that holds it to crank.
Make sure belt tension on alt. Is tight.
Let us know what you find.
Monday, October 25th, 2010 AT 8:28 AM