GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure

  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls-3.1L or Air Cleaner Assembly Replacement in Engine Controls-3.8L.

  2. Object Number: 282254  Size: SH
  3. Disconnect the A/C refrigerant pressure sensor from the electrical connector.

  4. Object Number: 663554  Size: SH
  5. Remove the A/C refrigerant pressure sensor from the condenser tube.

Installation Procedure

  1. Install the new O-ring seal. Refer to O-Ring Replacement .

  2. Object Number: 663554  Size: SH

    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.

  3. Install the A/C refrigerant pressure sensor to the condenser tube.
  4. Tighten
    Tighten the sensor to 4.7 N·m (41 lb in).


    Object Number: 282254  Size: SH
  5. Connect the A/C refrigerant pressure sensor to the electrical connector.
  6. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls-3.1L or Air Cleaner Assembly Replacement in Engine Controls-3.8L.
  7. Leak test the fittings of the component usingJ 39400-A .