Sierra 2500 4WD V8-6.0L (2008)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series - Cab/Chassis)
Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 (2500 Series - Cab/Chassis)
Removal Procedure
Notice: Refer to Heated Oxygen and Oxygen Sensor Notice.
1. Raise and support the vehicle. Refer to Vehicle Lifting.
2. Unbolt the front propeller shaft from the front differential, if equipped with four wheel drive (4WD). Refer to Front Propeller Shaft Replacement.
3. Remove the connector position assurance (CPA) retainer (3).
4. Disconnect the HO2S (1) electrical connector from the engine wiring harness electrical connector (2).
Notice: Refer to Excessive Force and Oxygen Sensor Notice.
