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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 Outlet Hose Replacement (Non-HP2) >> Removal Procedure

Removal Procedure

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  1. Drain the cooling system. Refer to Cooling System Draining and Filling (Static Fill) .
  2. Remove the air intake tube.
  3. Remove the heater and surge tank hoses from the mounting clip.
    4. Fig 1: View Of Quick Connect Fitting Release Tabs (Plastic Collar)
    GM12777Courtesy of GENERAL MOTORS COMPANY
  4. Squeeze the plastic retainer release tabs.
    5. Fig 2: View Of Pulling Connection Apart (Plastic Collar)
    GM12778Courtesy of GENERAL MOTORS COMPANY
  5. Pull the connection apart.
    6. Fig 3: Inlet Heater Hose At Engine
    GM363237Courtesy of GENERAL MOTORS COMPANY
  6. Remove the outlet heater hose from the water pump.
  7. Reposition the outlet heater hose clamp at the surge tank.
  8. Remove the outlet heater hose from the surge tank.
    9. Fig 4: View Of Inlet & Outlet Heater Hoses (LR4, LM7, LQ4)
    GM363118Courtesy of GENERAL MOTORS COMPANY
  9. Remove the outlet heater hose.
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