GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Important: Cap or tape the open A/C components immediately to prevent system contamination.

  3. Remove the air conditioning compressor. Refer to Air Conditioning Compressor Replacement .

  4. Object Number: 1579975  Size: SH
  5. Remove the high pressure relief valve.

Installation Procedure

  1. Remove the cap or tape from the A/C compressor.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1579975  Size: SH
  3. Install the high pressure relief valve.
  4. Tighten
    Tighten the valve to 8 N·m (70 lb in).

  5. Install the air conditioning compressor. Refer to Air Conditioning Compressor Replacement .
  6. Evacuate and recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  7. Leak test the fittings of the component using J 39400-A .