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GMC Truck
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1999
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Savana 1 Ton Van V8-454 7.4L VIN J SFI
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Ignition Timing
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Timing Marks and Indicators
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Locations
Timing Marks and Indicators: Locations
Crankshaft Rotation (Typical Crankshaft Pulley):
CRANKSHAFT ROTATION
Crankshaft rotation is clockwise when viewed from in front of the crankshaft pulley as shown in the "Typical Rotation" image.