GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 657412  Size: SH
  1. Disconnect the electrical connector from the A/C refrigerant pressure sensor.

  2. Object Number: 657415  Size: SH
  3. Remove the A/C refrigerant pressure sensor and the seal.
  4. Discard the seal.

Installation Procedure

Coat the seal with a mineral base 525 viscosity refrigerant oil.

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 657415  Size: SH
  1. Install a new seal to the A/C refrigerant pressure sensor fitting.
  2. Install the A/C refrigerant pressure sensor.
  3. Tighten
    Tighten the A/C refrigerant pressure sensor to 6 N·m (53 lb in).


    Object Number: 657412  Size: SH
  4. Connect the electrical connector to the A/C refrigerant pressure sensor.