Sierra Denali RWD V8-6.2L (2009)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor Replacement - Bank 2 Sensor 1
Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series)
Removal Procedure
Caution: Refer to Heated Oxygen and Oxygen Sensor Caution (See: Service Precautions/Heated Oxygen and Oxygen Sensor Caution)
1. Remove the right wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side (Chevrolet) (See: Body and Frame/Fender/Front
Fender/Front Fender Liner/Service and Repair)Front Wheelhouse Liner Replacement - Right Side (GMC) (See: Body and Frame/Fender/Front
Fender/Front Fender Liner/Service and Repair) .
2. Remove the connector position assurance (CPA) retainer (2).
3. Disconnect the HO2S electrical connector (7) from the engine wiring harness electrical connector (1).
4. Remove the HO2S clip (8) from the engine wiring harness.
Caution: Refer to Excessive Force and Oxygen Sensor Caution (See: Service Precautions/Excessive Force and Oxygen Sensor Caution)