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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 35 (Engine Mechanical - 6.6L - Introduction) >> Diagnostic Information and Procedures >> Drive Belt Excessive Wear Diagnosis >> Diagnostic Aids

Diagnostic Aids

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Excessive wear on a drive belt is usually caused by incorrect installation or the incorrect drive belt for the application.

Minor misalignment of the accessory drive belt pulleys will not cause excessive wear, but will probably cause the drive belt to make a noise or fall off.

Excessive misalignment of the accessory drive belt pulleys will cause excessive wear and may also make the drive belt fall off.