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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Place NEW water pump gaskets into place.
  2. Install the water pump.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the water pump bolts.

    Tighten:  Tighten the bolts to 50 N.m (37 lb ft).

    4. Fig 1: View Of Water Pump & Gasket
    GM470790Courtesy of GENERAL MOTORS CORP.
  4. Install the bypass hose.
  5. Position the bypass hose clamps at the water pump and water crossover.
    6. Fig 2: View Of Bypass Hose & Clamps
    GM846662Courtesy of GENERAL MOTORS CORP.
  6. Install the outlet hose to the water pump.
  7. Position the outlet hose clamp at the water pump.
    8. Fig 3: Identifying Outlet Hose To The Water Pump
    GM751427Courtesy of GENERAL MOTORS CORP.
  8. Install the fan clutch. Refer to Fan Clutch Replacement .
  9. Install the drive belt. Refer to Drive Belt Replacement - Accessory in Engine Mechanical - 8.1 L.
  10. Fill the cooling system. Refer to Draining and Filling Cooling System (without HP2) .
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