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Diagnostic Aids

WARNING: This page is about a different car, the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Most intermittent faults are caused by a faulty electrical connection or wiring. Perform a visual inspection of related wiring and connectors. Perform tests while wiggling wiring.

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