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. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  3. Object Number: 872550  Size: SH
  4. Remove the pressure relief valve from the compressor.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 872550  Size: SH
  1. Install the pressure relief valve and seal to the compressor.
  2. Tighten
    Tighten the compressor pressure relief valve to 7 N·m (62 lb in).

  3. Lower the vehicle.
  4. Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging .
  5. Leak test the fittings using the J 39400-A .