GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1279847  Size: SH
  1. Disconnect the negative battery cable.
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the air cleaner hose clamp.
  4. Remove the 3 bolts that secure the air cleaner housing and remove the air cleaner housing.

  5. Object Number: 1279848  Size: SH
  6. Disconnect the pressure sensor connector.
  7. Remove the pressure sensor connector.

Installation Procedure


    Object Number: 1279848  Size: SH
  1. Install a new O-ring seal on the pressure sensor.
  2. Install the pressure sensor.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Connect the pressure sensor connector.
  5. Tighten
    Tighten the pressure sensor to 7 N·m (62 lb in).


    Object Number: 1279847  Size: SH
  6. Install the air cleaner housing and bolts.
  7. Install the air cleaner hose clamp.
  8. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
  9. Connect the negative battery cable.