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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 >> Discharge Hose Replacement (LY2, LMF, L76 and L92) >> Installation Procedure

Installation Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Suction/Discharge Hoses To A/C Compressor
    GM628247Courtesy of GENERAL MOTORS COMPANY
  1. Install the discharge hose (1) to the vehicle.
    2. Fig 2: View Of Discharge Hose At Condenser
    GM363062Courtesy of GENERAL MOTORS COMPANY
  2. Install the discharge hose to the condenser using new sealing washers. Refer to Air Conditioning System Seal Replacement .
    3. CAUTION:

    Refer to Fastener Caution .

  3. Install the discharge hose nut to the condenser and tighten to 16 (12 lb ft).
  4. Install the upper air baffle. Refer to Radiator Air Upper Baffle and Deflector Replacement (Yukon) , Radiator Air Upper Baffle and Deflector Replacement (Cadillac) .
  5. Connect the electrical connector to the A/C recirculation switch.
    6. Fig 3: Identifying Suction/Discharge Hoses To A/C Compressor
    GM628247Courtesy of GENERAL MOTORS COMPANY
  6. Install the discharge hose (1) to the A/C compressor using new sealing washers. Refer to Air Conditioning System Seal Replacement .
  7. Install the discharge hose mounting bolt and tighten to 16 (12 lb ft).
  8. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging (Non-HP2) , Refrigerant Recovery and Recharging (HP2) .
  9. Leak test the fittings of the component using the J-39400-A  halogen leak detector.
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