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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Mechanical - 6.6L - Introduction) >> Diagnostic Information and Procedures >> Drive Belt Rumbling Diagnosis >> Diagnostic Aids

Diagnostic Aids

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Vibration from the engine operating may cause a body component or another part of the vehicle to make rumbling noise.

The drive belt may have a condition that can not be seen or felt. Sometimes replacing the drive belt may be the only repair for the symptom.

If, after replacing the drive belt and completing the diagnostic table, the rumbling is only heard with the drive belt installed, there might be an accessory drive component failure. Varying the load on the accessory drive components may aid in identifying which component is causing the rumbling noise.

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