GM Service Manual Online
For 1990-2009 cars only

Special Tools

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.

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

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 872550  Size: SH
  1. Install the pressure relief valve and seal to the compressor and tighten the valve to 7 N·m (62 lb in).
  2. Lower the vehicle.
  3. Evacuate and charge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
  4. Leak test the fittings using the J 39400-A .