GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 39400-A Halogen Leak Detector

Removal Procedure


    Object Number: 247355  Size: SH
  1. Disconnect the electrical connector from the A/C pressure sensor.
  2. Remove the A/C pressure sensor from the compressor hose.
  3. Remove and discard the O-ring from the compressor hose.

Installation Procedure


    Object Number: 247355  Size: SH
  1. Install the new O-ring to the compressor hose. Refer to O-Ring Replacement .
  2. 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 pressure sensor.
  4. Tighten
    Tighten the sensor to 5 N·m (44 lb in).

  5. Connect the electrical connector to the A/C pressure sensor.
  6. Leak test the fittings of the A/C component using the J 39400-A .