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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (RPOs LY6/L76/L92) >> Removal Procedure

Removal Procedure

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    Fig 1: View Of Radiator Vent Inlet Hose & Clamps
    GM1699347Courtesy of GENERAL MOTORS CORP.
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  2. Drain the cooling system. Refer to Draining and Filling Cooling System .
  3. Reposition the radiator vent inlet hose clamp (1) at the coolant air bleed pipe fitting.
  4. Remove the radiator vent inlet hose (2) from the coolant air bleed pipe fitting.
    5. Fig 2: View Of Radiator Vent Inlet Hose Clamp At Water Pump
    GM1696566Courtesy of GENERAL MOTORS CORP.
  5. Reposition the radiator inlet hose clamp (3) at the water pump.
  6. Remove the radiator inlet hose from the water pump.
  7. Reposition the radiator inlet hose and vent inlet hose out of the way.
  8. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory .
    9. Fig 3: View Of Radiator Outlet Hose
    GM1699336Courtesy of GENERAL MOTORS CORP.
  9. Reposition the radiator outlet hose clamp at the water pump.
  10. Remove the radiator outlet hose from the water pump.
  11. Reposition the outlet hose out of the way.
    12. Fig 4: View Of Radiator Surge Tank Outlet Hose, Clamp & Water Pump
    GM1697283Courtesy of GENERAL MOTORS CORP.
  12. Reposition the radiator surge tank outlet hose clamp at the water pump (1).
  13. Remove the radiator surge tank outlet hose (2) from the water pump.
  14. Reposition the outlet hose out of the way.
    15. Fig 5: View Of Heater Inlet Hose, Clamp & Waterpump
    GM1697282Courtesy of GENERAL MOTORS CORP.
  15. Reposition the heater inlet hose clamp (1) at the water pump.
  16. Remove the heater inlet hose (2) from the water pump.
  17. Reposition the inlet hose out of the way.
    18. Fig 6: View Of Water Pump, Bolts & Gaskets
    GM1658143Courtesy of GENERAL MOTORS CORP.
  18. Remove the water pump bolts (301).
  19. Remove the water pump (300) and gaskets (309). Discard the gaskets.
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