Special Tools

J 39194-B Heated Oxygen Sensor Wrench

Caution: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution in the Preface section.

Caution: Refer to Heated Oxygen and Oxygen Sensor Caution in the Preface section.

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Disconnect the heated oxygen sensor (HO2S) electrical connector (1).

Caution: Refer to Excessive Force and Oxygen Sensor Caution in the Preface section.

3. Remove the HO2S (2) using a J 39194-B .

Note: Use special anti-seize compound on the heated oxygen sensor threads. The compound consists of graphite suspended in fluid and glass beads. The graphite burns away, but the glass beads remain, making the sensor easier to remove. New or service sensors already have the compound applied to the threads. If you remove an oxygen sensor and if for any reason you must reinstall the same oxygen sensor, apply the anti-seize compound to the threads before reinstallation.

1. Coat the threads of the heated oxygen sensor with the anti-seize compound P/N 5613695, or the equivalent if necessary.

Caution: Refer to Component Fastener Tightening Caution in the Preface section.

2. Install the heated oxygen sensor (2) using a J 39194-B . Tighten the HO2S to 41 N·m (30 lb ft).
3. Connect the HO2S electrical connector (1).
4. Lower the vehicle.