Maybe this will help. I own a 2002 Dodge Caravan Sport and at one time (@ 73,000 mls) it was making a whining noise that seemed to go higher in pitch when ever acceleration occurred (park/neutral/drive). It turned out to be my water pump. It was found to be leaking during other repair service. Once replaced, the noise disappeared.
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Thursday, July 20th, 2006 AT 7:41 AM