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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 864 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Discharge Hose Replacement (LY2, LMF, L76 and L92) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. 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 CORP.
  1. Install the discharge hose (1) to the vehicle.
  2. Connect the electrical connector to the A/C recirculation switch.
    3. Fig 2: View Of Discharge Hose At Condenser
    GM363062Courtesy of GENERAL MOTORS CORP.
  3. Install the discharge hose to the condenser using new sealing washers. Refer to Sealing Washer Replacement .
    4. NOTE: Refer to Fastener Notice .
  4. Install the discharge hose nut to the condenser.

    Tighten:  Tighten the nut to 16 N.m (12 lb ft).

  5. Install the upper air baffle. Refer to Radiator Air Upper Baffle and Deflector Replacement .
    6. Fig 3: Identifying Suction/Discharge Hoses To A/C Compressor
    GM628247Courtesy of GENERAL MOTORS CORP.
  6. Install the discharge hose (1) to the A/C compressor using new sealing washers. Refer to Sealing Washer Replacement .
  7. Install the discharge hose mounting bolt.

    Tighten:  Tighten the bolt to 16 N.m (12 lb ft).

  8. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  9. Leak test the fittings of the component using the J 39400-A  . See Special Tools .
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