Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Water Pump & Bolts

Courtesy of GENERAL MOTORS CORP.

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.
Install NEW water pump gaskets and the water pump.
NOTE: Refer to Fastener Notice .
Install the water pump bolts.
Tighten: Tighten the bolts to 45 N.m (33 lb ft).

Fig 2: View Of Fan, Water Pump Pulley & Bolts

Courtesy of GENERAL MOTORS CORP.

Using J 41240 , hold the water pump pulley, install the water pump pulley bolts.
Tighten: Tighten the bolts to 25 N.m (18 lb ft).

Fig 3: View Of Water Pump Inlet Hose & Clamps

Courtesy of GENERAL MOTORS CORP.

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.

Install the water pump inlet hose.
Position the water pump inlet hose clamps.

Fig 4: View Of Radiator Outlet Hose & Water Pump (4.3L)

Courtesy of GENERAL MOTORS CORP.

Install the radiator outlet hose to the water pump.
Install the radiator outlet hose to the surge tank.
Position the radiator outlet hose clamps at the surge tank and water pump.
Install the drive belt. Refer to Drive Belt Replacement .
Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement .
Fill the cooling system. Refer to Cooling System Draining and Filling (Static Fill) or Cooling System Draining and Filling (Vac-N-Fill) .
Inspect the cooling system for leaks.