GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39037 Charge Valve Octagon Socket

Removal Procedure

  1. Remove the service port cap.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.

  3. Object Number: 301209  Size: SH
  4. Use the J 39037 Charge Valve Octagon Socket to remove the service port.

Installation Procedure

  1. Replace the O-ring. Refer to O-Ring Replacement.
  2. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 301209  Size: SH
  3. Install the service port valve and tighten to 11 N·m (98 lb in).
  4. Evacuate and charge the system. Refer to Refrigerant Recovery and Recharging.
  5. Leak test the A/C service port. Refer to Leak Testing.
  6. Install the service port cap.