Try this. Remove the serp belt and check all the belt driven accessories to see if there is a bad bearing in one of them. Make sure to check the water pump to see if there is up and down play in it. Remember, if you start the engine, only run it long enough to see if the noise is gone. It will over heat with the belt off and other things can occur.
Wednesday, February 6th, 2013 AT 1:53 AM