Mechanics

SIERRA 1500

2000 GMC C1500

I have a 2000 GMC Sierra 1500, 4x4, 5.3L V8 with 127,000 miles. Recently I went through some high water with it, and since then it has had a loud squeaking noise coming from under the hood. I have replaced the idler pulley, tensioner pulley, a/c belt, and serpentine belt and the noise is still there. Any ideas on what it may be?
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Danww
May 17, 2007.



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