GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the electrical connector from the A/C refrigerant pressure sensor. The connector is accessible through the lower control arm.

  3. Object Number: 1864508  Size: SH
  4. Remove the A/C refrigerant pressure sensor from the compressor hose block (1).
  5. Remove and discard the O-ring seal from the A/C refrigerant pressure sensor.

Installation Procedure

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


    Object Number: 1864508  Size: SH
  3. Install the A/C refrigerant pressure sensor to the compressor hose block (1).
  4. Tighten
    Tighten the A/C refrigerant pressure sensor to 4.8 N·m (42 lb in).

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