Sierra 2500 Denali 2WD V8-6.0L (2011)
7. Remove the CPA retainer (2).
8. Remove the engine wiring harness electrical connector clip (1) from the fuel line clip.
9. Disconnect the engine wiring harness electrical connector (3) from the HO2S.
Caution: Refer to Excessive Force and Oxygen Sensor Caution (See: Service Precautions/Excessive Force and Oxygen Sensor Caution)
10. Remove the HO2S (1).
Installation Procedure
