Putting the car in Neutral has no effect. Car can be sitting in driveway, not moving in park and make noise. Their was some noise from the belt slipping which I think confused the dealer and I had asked for a new serpentine belt so he thought that was the issue. I thought it was the belt slipping and the water pump so I took it into dealer, he said not water pump, said it was just serpentine belt, which he replaced, as he backed car out of his building, the car made noise again. He does not know any more.
I drive 4 miles to work one way ( lucky me ) noticed today the noise did not start until the engine heated up and the Thermostat opened ( could tell by temperature gage). I saw the same thing, no noise until engine hot ( about 3.5 miles and several lights) on the way home. So now I wonder if it's the water pump when the thermostat opens and the pump starts to pump liquid around.
Tuesday, May 5th, 2009 AT 5:05 PM