Removal Procedure

WARNING: This page is about a different car, the 2005 GMC Yukon XL, 2005 Chevrolet Suburban, and 2005 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.

Fig 1: View Of O2 Sensor, Connector, Harness And Retainers

Courtesy of GENERAL MOTORS CORP.

Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Disconnect the connector position assurance (CPA) retainer.
NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Cautions and Notices.
Disconnect the HO2S sensor electrical connector.

Fig 2: View Of HO2S Sensors (Sensor 1)

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Excessive Force and Oxygen Sensor Notice in Cautions and Notices.

Remove the HO2S (3).