Express 1/2 Ton Van V6-4.3L VIN W (1999)
1. Install the gasket and the water coolant pump.
2. Apply GM P/N 12346004 or equivalent thread sealant on the water pump mounting bolts.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the water pump mounting bolts.
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Tighten the bolts to 42 Nm (31 ft. lbs.).
4. Connect the heater outlet hose to the water pump.
