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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 >> Air Conditioning Evaporator Tube Replacement (Non-HP2) >> Removal Procedure

Removal Procedure

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  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (Non-HP2) , Refrigerant Recovery and Recharging (HP2) .
  2. Remove the upper radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement (Yukon) , Radiator Air Upper Baffle and Deflector Replacement (Cadillac) .
  3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  4. Remove the surge tank hold down nut and bolt and position aside.
    5. NOTE:

    Do not open cooling system.

    Fig 1: Evaporator Tube At Evaporator
    GM385463Courtesy of GENERAL MOTORS COMPANY
  5. Remove the evaporator tube nut from the evaporator.
  6. Disconnect the evaporator tube from the evaporator.
  7. Remove the evaporator tube nut from the auxiliary A/C tube, if equipped.
  8. Disconnect the evaporator tube from the auxiliary A/C tube, if equipped.
    9. Fig 2: Evaporator Tube At Condenser
    GM363033Courtesy of GENERAL MOTORS COMPANY
  9. Remove the evaporator tube nut from the condenser.
  10. Disconnect the evaporator tube from the condenser.
  11. Remove the evaporator tube from the vehicle.
  12. Discard all of the used sealing washers. Cap all of the open connections.
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