Express 1500 RWD V6-4.3L VIN X (2005)
12. Remove the water pump bolts.
13. Remove the water pump.
14. Remove and discard the water pump gaskets.
15. Clean and inspect the water pump, if necessary.
Installation Procedure
1. If reusing the 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 water pump bolts to 45 Nm (33 ft. lbs.).
4. Using J 41240 to hold the water pump pulley, install the water pump pulley bolts.
Tighten the water pump pulley bolts to 25 Nm (18 ft. lbs.).
