G 1500 1/2 Ton Van V6-4.3L VIN W (1997)
Camshaft: Testing and Inspection
Freeplay
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Check camshaft timing chain free play. If the camshaft timing chain can be moved back and forth in excess of 16 mm (0.625 inch) replace the
timing chain.
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Inspect the sprockets for chipped teeth and wear. Worn sprockets will wear a new chain.
