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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 4.3L >> Diagnostic Information and Procedures >> Drive Belt Squeal Diagnosis >> Diagnostic Aids

Diagnostic Aids

A loose or incorrect installation of a body component, a suspension component, or other items of the vehicle may cause the squeal noise.

If the noise is intermittent verify the accessory drive components by varying their loads. Ensure the accessory components are operated to their maximum capacity. An overcharged A/C system or power steering system with: a pinched hose, an incorrect fluid, or a failed generator are suggested items to inspect.