FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Home >> Chevy Truck >> 1999 >> Express 1/2 Ton Van V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Ignition Timing >> Timing Marks and Indicators >> Locations >> Timing Marks

Timing Marks

Note: The ignition timing is completely controlled by the Vehicle Control Module (VCM).

Refer to P1345. P1345

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