Sierra 2500 Denali 2WD V8-6.0L (2011)
Caution: Refer to Heated Oxygen and Oxygen Sensor Caution (See: Service Precautions/Heated Oxygen and Oxygen Sensor Caution)
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (See: Maintenance/Vehicle Lifting/Service and Repair).
2. Remove the connector position assurance (CPA) retainer (5).
3. Disconnect the HO2S electrical connector (6) from the engine wiring harness electrical connector (7).
Caution: Refer to Excessive Force and Oxygen Sensor Caution (See: Service Precautions/Excessive Force and Oxygen Sensor Caution)
4. Remove the HO2S (3).
Installation Procedure
