GM Service Manual Online
For 1990-2009 cars only

Special Tools

    • J 39400-A Halogen Leak Detector
    • J 46246 Valve Core Removal Tool

Removal Procedure

  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.

  2. Object Number: 877654  Size: SH
  3. Remove the service port valve core using J 46246 or equivalent.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 877654  Size: SH
  1. Install the service port valve core using J 46246 or equivalent.
  2. Tighten the service port valve core to 2.5 N·m (22 lb in).

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