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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 >> Installation Procedure

Installation Procedure

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NOTE:

The replacement A/C and heater pipes are shipped in two sections and spliced together upon installation. Refer to Auxiliary Heater and Air Conditioning Pipe Repair .

  1. Install the auxiliary A/C evaporator tubes to the vehicle.
    2. Fig 1: Auxiliary Heater Pipes, Clamps And Heater/A/C Tubes Retaining Nut And Stud
    GM691870Courtesy of GENERAL MOTORS CORP.
  2. Install the auxiliary A/C evaporator tubes (3) to the clamps (5).
    3. CAUTION:

    Refer to Fastener Caution .

  3. Install the heater/A/C tubes retaining nut (4) to the stud (1) at the frame (6) and tighten to 7 N.m (62 lb in).
    4. Fig 2: Auxiliary A/C Evaporator Tubes And Auxiliary HVAC Module
    GM691871Courtesy of GENERAL MOTORS CORP.
  4. Install the auxiliary A/C evaporator tubes (2, 3) and the retaining nut to the auxiliary HVAC module and tighten to 16 N.m (12 lb ft).
  5. Lower the vehicle.
  6. Install the rear wheelhouse liner. Refer to Rear Wheelhouse Panel Liner Replacement (RPO X88 Chevrolet, RPO O88 GMC) , Rear Wheelhouse Panel Liner Replacement (RPO HP2) .
  7. Install 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) .
  8. Install the front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side .
    9. Fig 3: Auxiliary A/C Evaporator Tubes At Condenser Tube And Accumulator
    GM612568Courtesy of GENERAL MOTORS CORP.
  9. Install the auxiliary A/C evaporator tubes (3) to the condenser tube (2) and the accumulator (5) using the nuts and tighten to 16 N.m (12 lb ft).
  10. Recharge the refrigerant to the system. Refer to Refrigerant Recovery and Recharging (Non-HP2) , Refrigerant Recovery and Recharging (HP2) .
  11. Leak test the fittings of the component using the J 39400-A .
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