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 to remove the service port.

Installation Procedure

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


    Object Number: 301209  Size: SH
  3. Install the service port valve.
  4. Tighten
    Tighten the valve to 11 N·m (98 lb in).

  5. Evacuate and charge the system. Refer to Refrigerant Recovery and Recharging .
  6. Leak test the A/C service port. Refer to Leak Testing .
  7. Install the service port cap.