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Rear Oxygen Sensor: Removal
- Disconnect the ground cable from battery.
- Lift up the vehicle.
- Remove the transmission under cover.
- Disconnect the connector from the rear oxygen sensor, and remove the clip (A) holding the rear oxygen sensor harness.
Courtesy of SUBARU OF AMERICA, INC.
- Apply spray-type lubricant to the threaded portion of rear oxygen sensor, and leave it for one minute or more.
- Remove the rear oxygen sensor.
CAUTION:
When removing the rear oxygen sensor, wait until exhaust pipe cools, otherwise it will damage the exhaust pipe.
Courtesy of SUBARU OF AMERICA, INC.