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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (8.1L Engine) >> Installation Procedure

Installation Procedure

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    Fig 1: View Of Water Pump & Gasket
    GM470790Courtesy of GENERAL MOTORS CORP.
  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 2: View Of Bypass Hose (8.1L)
    GM846662Courtesy of GENERAL MOTORS CORP.
  4. Install the bypass hose.
  5. Position the bypass hose clamps at the water pump and water crossover.
    6. Fig 3: Identifying Outlet Hose To The Water Pump
    GM751427Courtesy of GENERAL MOTORS CORP.
  6. Install the outlet hose to the water pump.
  7. Position the outlet hose clamp at the water pump.
  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 .
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