Removal Procedure
The heated oxygen sensor may be difficult to remove when engine temperature is below 48° C (120° F). Excessive force may damage threads in exhaust manifold or exhaust pipe.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
- Disconnect the HO2S electrical connector.
- Use the J 39194-B to remove the HO2S.
IMPORTANT:
A special anti-seize compound is used on the heated oxygen sensor threads. The compound consists of graphite suspended in fluid and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will already have the compound applied to the threads. If a sensor is removed from an engine and if for any reason is to be reinstalled, the threads must have anti seize compound applied before reinstallation.