Sierra 3500 Denali 4WD V8-6.0L (2011)
Caution: Refer to Component Fastener Tightening Caution (See: Service Precautions/Vehicle Damage Warnings/Component Fastener
Tightening Caution)
2. Install the HO2S (2).
Tighten the sensor to 42 Nm (31 lb ft).
3. Connect the HO2S electrical connector (1) to the engine wiring harness electrical connector (2).
4. Install the CPA retainer (9).
5. Lower the vehicle.
Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series)
Heated Oxygen Sensor Replacement - Bank 2 Sensor 1 (1500 Series)
Removal Procedure