Outback F4-2.5L (2008)
Oxygen Sensor: Service and Repair
Front Oxygen (A/F) Sensor
Front Oxygen (A/F) Sensor
REMOVAL
1. Set the vehicle on a lift.
2. Disconnect the ground cable from the battery.
3. Remove the air intake duct.
4. Remove the clip fastening the harness and disconnect the front oxygen (A/F) sensor connector.
5. Lift up the vehicle.
6. Remove the under cover.
7. Apply spray-type lubricant to the threaded portion of front oxygen (A/F) sensor, and leave it for one minute or more.
8. Remove the front oxygen (A/F) sensor.
CAUTION: When removing the front oxygen (A/F) sensor, wait until exhaust pipe cools, because it can damage the exhaust pipe.
INSTALLATION
1. Before installing front oxygen (A/F) sensor, apply the anti-seize compound only to the threaded portion of front oxygen (A/F) sensor. This
facilitates the next removal.
CAUTION: Never apply anti-seize compound to the protector of front oxygen (A/F) sensor.
