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

Caution: Refer to Fastener Caution in the Preface section.

Tighten
4 N·m (35 lb in)

2

Air Quality Sensor

Procedure

Disconnect the electrical connector.