I got a great deal on an 01 Tahoe in which the belt squealed. Figuring it was either the actual belt or the Idler pulley, I thought it'd be an easy fix. Well, I've since changed everything the belt rides on (both belts (twice), pulleys/tensioners, the alternator, water pump, clutch fan, etc.) and the squeal is still there! I have a feeling that something one of these parts connects to is either cracked or bent causing the belt to ride just a little off & still squeal. Can anyone offer any other suggestions? I've heard of a couple other Tahoe owners having the squeal & just accepting it as characteristic - NOT acceptable to me. PLEASE help!!!!