Silverado 1500 2WD V6-4.3L VIN X (2004)
14. Remove the water pump bolts.
15. Remove the water pump.
16. Remove and discard the water pump gaskets.
17. Clean and inspect the water pump, if necessary.
Installation Procedure
1. If reusing the old fasteners, apply sealant GM P/N 12346004, (Canadian P/N 10953480), or equivalent to the threads of the water pump bolts.
2. Install NEW water pump gaskets and the water pump.
Notice: Refer to Fastener Notice in Service Precautions.
3. Install the water pump bolts.
Tighten the bolts to 45 Nm (33 ft. lbs.).
4. Using J 41240, hold the water pump pulley, install the water pump pulley bolts.
Tighten the bolts to 25 Nm (18 ft. lbs.).
5. Important: After assembly, the hose clamp tangs (water pump end) must point forward and the upper tang should be level with the outside
diameter of the water pump inlet hose.
