C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
Oxygen Sensor: Service Precautions
Excessive Force and Oxygen Sensor Notice
Excessive Force and Oxygen Sensor Notice
Notice:
The oxygen sensor may be difficult to remove when the engine temperature is below 48°C (120°F). Excessive force may damage threads in the exhaust
manifold or the exhaust pipe.