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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) >> Removal Procedure

Removal Procedure

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    Fig 1: Identifying Outlet Hose To The Water Pump
    GM751427Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Remove the drive belt. Refer to Drive Belt Replacement - Accessory in Engine Mechanical - 8.1 L.
  3. Remove the fan clutch. Refer to Fan Clutch Replacement .
  4. Position the outlet hose clamp at the water pump.
  5. Remove the outlet hose from the water pump.
  6. Fig 2: View Of Bypass Hose (8.1L)
    GM846662Courtesy of GENERAL MOTORS CORP.
  7. Position the bypass hose clamps at the water pump and water crossover.
  8. Remove the bypass hose.
  9. Fig 3: View Of Water Pump & Gasket
    GM470790Courtesy of GENERAL MOTORS CORP.
  10. Remove the water pump bolts.
  11. Remove the water pump.
  12. Remove and discard the water pump gaskets.