Rear Heated Oxygen Sensor Replace
Tools Required
DW170-010 Oxygen Sensor Remover/Installer
Remove
- Disconnect the negative battery cable.
Important: The oxygen sensor uses a permanently attached pigtail and connector. This pigtail should not be removed from the oxygen sensor. Damage or removal of the pigtail or the connector affect the proper operation of the oxygen sensor. Take care when handing the oxygen sensor. Do not drop the oxygen sensor.
- Disconnect the rear heated oxygen sensor connector.
Important : Allow the engine to cool before removing the oxygen sensor. Removal of the oxygen sensor when the engine is hot may damage the threads in the exhaust manifold.
- Using the oxygen sensor remover/installer DW170-010, carefully remove the rear heated oxygen sensor.
Install
Note: A special anti-seize compound is used on the oxygen sensor threads. This compound consists of a liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or serviced sensors will already have the compound applied to the threads. If a sensor is removed from any engine and is to be reinstalled, the threads must have an anti-seize compound applied before reinstallation.
- Coat the threads of the rear oxygen sensor with anti-seize compound, if needed.
- Using the oxygen sensor remover/installer DW170-010, install the rear heated oxygen sensor into the exhaust front pipe.
Tighten
Tighten the rear heated oxygen sensor to 50 N•m (37 lb-ft).
- Connect the rear heated oxygen sensor connector.
- Connect the negative battery cable.