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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 92 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Auxiliary Heater Pipe Replacement >> Removal Procedure

Removal Procedure

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    Fig 1: Squeezing Quick Connect Fitting Release Tabs (Plastic Collar)
    GM12777Courtesy of GENERAL MOTORS CORP.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System .
  2. Squeeze the plastic retainer tabs on the inlet hose.
    3. Fig 2: Pulling Connection Apart (Plastic Collar)
    GM12778Courtesy of GENERAL MOTORS CORP.
  3. Pull the connection apart.
    4. Fig 3: Squeezing Quick Connect Fitting Release Tabs (Plastic Collar)
    GM12777Courtesy of GENERAL MOTORS CORP.
  4. Squeeze the plastic retainer tabs on the outlet hose.
    5. Fig 4: Pulling Connection Apart (Plastic Collar)
    GM12778Courtesy of GENERAL MOTORS CORP.
  5. Pull the connection apart.
    6. Fig 5: View Of Auxiliary Heater Pipes At Heater Inlet & Outlet Tees
    GM612571Courtesy of GENERAL MOTORS CORP.
  6. Remove the auxiliary heater pipes (1, 2) from the heater inlet and outlet tees (3, 4).
  7. Remove both of the right tires. Refer to Tire and Wheel Removal and Installation .
  8. Remove the right rear wheelhouse panel. Refer to Wheelhouse Liner Panel Replacement - Rear .
  9. Remove the right front wheelhouse panel. Refer to Front Wheelhouse Liner Replacement .
    10. Fig 6: View Of Auxiliary Heater Pipes
    GM612548Courtesy of GENERAL MOTORS CORP.
  10. Remove the auxiliary heater pipes (2, 3) from the auxiliary heater core.
    11. Fig 7: View Of Auxiliary Heater Pipes, Clamps & Heater/A/C Tubes Retaining Nut & Stud
    GM691870Courtesy of GENERAL MOTORS CORP.
  11. Remove the heater/A/C tubes retaining nut (4) from the stud (1) at the frame (6).
  12. Remove the auxiliary heater pipes (2) from the clamps (5).
  13. Remove the auxiliary heater pipes from the vehicle.
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