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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1151 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Compressor Pressure Relief Valve Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Lubricate the high pressure relief valve O-ring. Refer to O-Ring Replacement .
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 1: Identifying High Pressure Relief Valve
    GM903621Courtesy of GENERAL MOTORS CORP.
  2. Install the high pressure relief valve to the A/C compressor.

    Tighten:  Tighten the valve to 12 N.m (9 lb ft).

  3. Raise and support the vehicle.
  4. Remove the cap or tape from the A/C compressor suction port and suction hose end fitting.
  5. Install a new seal washer to the suction hose end fitting. Refer to Sealing Washer Replacement .
    6. Fig 2: View Of Suction Hose To A/C Compressor Nut
    GM791146Courtesy of GENERAL MOTORS CORP.
  6. Connect the suction hose to the A/C compressor.
  7. Install the suction hose to A/C compressor nut.

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

  8. Install the air baffle.
    9. Fig 3: View Of Lower Air Deflector/Baffle
    GM125807Courtesy of GENERAL MOTORS CORP.
  9. Install the air baffle bolts.

    Tighten:  Tighten the bolts to 20 N.m (15 lb ft).

  10. Lower the vehicle.
  11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  12. Leak test the fittings of the component using J 39400-A  .
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