I have a 2004 Pontiac Grand prix GTP and it is making a whining noise under the hood. It also gets louder the harder I step on the gas. We have replaced the alternator so that is not the problem. We have started the car without the belts on and it doesn't make the noise anymore but if we just take of the belt that is on the supercharger it makes the noise. Were at a loss and just dont know what else to test.
Thursday, June 9th, 2011 AT 3:23 AM