GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 12599  Size: SH
  1. Disconnect the AIR hose at the AIR check valve.
  2. Disconnect the electrical connector from the fuel pump switch and engine oil pressure sensor.
  3. Remove the fuel pump switch and engine oil pressure sensor.

Installation Procedure


    Object Number: 12599  Size: SH
  1. Install the fuel pump switch and engine oil pressure sensor.
  2. Tighten
    Tighten the fuel pump switch and engine oil pressure sensor to 12 N·m (106 lb in).

  3. Connect the electrical connector to the fuel pump switch and engine oil pressure sensor.
  4. Connect the AIR hose to the AIR check valve.