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GMC Truck
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1998
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Savana 3/4 Ton Van V6-4.3L VIN W
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Cooling System
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Description and Operation
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Water Pump Description
Water Pump Description
COOLANT PUMP
The coolant pump is a centrifugal-type pump consisting of an impeller, impeller drive shaft, pulley flange, and a cast housing. The pulley which attaches to the pump is driven by the accessory drive belt.