GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 34611-A Valve Core Remover and Installer

Removal Procedure


    Object Number: 369052  Size: SH
  1. Remove the service port valve cap.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .

  3. Object Number: 369066  Size: SH
  4. Remove the service port valve core using J 34611-A .

Installation Procedure

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: Lubricate the service port valve core O-ring with 525 refrigerant oil.


    Object Number: 369066  Size: SH
  1. Install the service port valve core using J 34611-A .

  2. Object Number: 369052  Size: SH
  3. Tighten the service port valve core.
  4. Tighten
    Tighten the service port valve core to 12 N·m (106 lb in).

  5. Evacuate and charge the A/C system. Refer to Refrigerant Recovery and Recharging .
  6. Install the service port valve cap.
  7. Test the component fittings for leaks using J 39400 .