GM Service Manual Online
For 1990-2009 cars only

Object Number: 1857099  Size: MF

Callout

Component Name

Preliminary Procedure

  1. Remove the upper grille. Refer to Radiator Upper Grille Replacement .
  2. By removing the grille retainers allows the front fascia grille flexibility to be moved forward to access the air quality sensor.

1

Air Quality Sensor Bolt

Notice: Refer to Fastener Notice in the Preface section.

Tighten
4 N·m (35 lb in)

2

Air Quality Sensor

Procedure

Disconnect the electrical connector.