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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating, Ventilation, And Air Conditioning >> Repair Instructions >> Auxiliary Air Conditioning Evaporator Front Tube Replacement >> Removal Procedure

Removal Procedure

  1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
    3. Fig 1: Auxiliary Evaporator Hose Nuts, Evaporator Hoses, And O-Rings
    GM1970351Courtesy of GENERAL MOTORS CORP.
  3. Remove the auxiliary evaporator hose nuts (1) from the main evaporative hose connections.
  4. Separate auxiliary evaporator hoses (3) and O-rings (2).
    5. Fig 2: Identifying Auxiliary Heater Tubes Connector Nuts
    GM1968229Courtesy of GENERAL MOTORS CORP.
  5. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  6. Remove the right assist step if necessary. Refer to Assist Step Replacement (w/WS2, BVX) or Assist Step Replacement (Tubular BVE) .
  7. Remove the front wheelhouse liner if necessary. Refer to Wheelhouse Panel Replacement .
  8. Remove the auxiliary A/C tubes connector nuts (1) from the intermediate connection point.
    9. Fig 3: Auxiliary Heater Tubes Clip Push Pins Locations
    GM1968232Courtesy of GENERAL MOTORS CORP.
  9. Remove the auxiliary A/C tubes clip push pins (1) from vehicle frame locations.
  10. Remove the auxiliary A/C tubes (2) from vehicle.
    11. Fig 4: Identifying Auxiliary Heater Tubes Clip
    GM1968221Courtesy of GENERAL MOTORS CORP.
  11. Remove auxiliary A/C tubes clip retaining push pin/bolt (1) if necessary.
  12. Use a flat-bladed release tool to open retaining clips (2).
  13. Remove auxiliary A/C tubes from vehicle.
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