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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 447 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Heater Coolant Pump Replacement (HP2)

Heater Coolant Pump Replacement (HP2)

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Fig 1: Heater Coolant Pump (HP2)
GM1970232Courtesy of GENERAL MOTORS COMPANY
Heater Coolant Pump Replacement (HP2)

Callout Component Name

Preliminary Procedures

  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) .
  2. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement .
  3. Remove the air cleaner resonator duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  4. Disconnect the heater coolant pump electrical connector.
1 Heater Coolant Pump
Procedure 
Using J-38185  hose clamp pliers reposition the heater hose clamps at pump.
Special Tools 
J-38185  Hose Clamp Pliers