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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 309 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Auxiliary Air Conditioning Evaporator Tube Replacement >> Removal Procedure

Removal Procedure

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  1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging (Non-HP2) , Refrigerant Recovery and Recharging (HP2) .
    2. Fig 1: Auxiliary A/C Evaporator Tubes At Condenser Tube And Accumulator
    GM612568Courtesy of GENERAL MOTORS CORP.
  2. Remove the auxiliary A/C evaporator tubes (3) from the condenser tube (2) and the accumulator (5).
  3. Loosen the right front wheelhouse to gain access to the clamp behind the wheelhouse.
  4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the right assist step. Refer to Assist Step Replacement (GMC Denali XL) , Assist Step Replacement (Chevrolet HP2) , Assist Step Replacement (Power BRS) , Assist Step Replacement (Z71) .
  6. Remove the front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side .
  7. Remove the rear wheelhouse liner. Refer to Rear Wheelhouse Panel Liner Replacement (RPO X88 Chevrolet, RPO O88 GMC) , Rear Wheelhouse Panel Liner Replacement (RPO HP2) .
    8. Fig 2: Auxiliary A/C Evaporator Tubes And Auxiliary HVAC Module
    GM691871Courtesy of GENERAL MOTORS CORP.
  8. Remove the retaining nut (2) and the auxiliary A/C evaporator tubes (3) from the auxiliary HVAC module.
    9. Fig 3: Auxiliary Heater Pipes, Clamps And Heater/A/C Tubes Retaining Nut And Stud
    GM691870Courtesy of GENERAL MOTORS CORP.
  9. Remove the heater/A/C tubes retaining nut (4) from the stud (1) at the frame (6).
  10. Remove the auxiliary A/C evaporator tubes (3) from the clamps (5).
  11. Remove the auxiliary A/C evaporator tubes from the vehicle.
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