Mariner 4WD V6-3.0L (2010)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor (HO2S)
Heated Oxygen Sensor (HO2S)
Removal and Installation
LH Heated Oxygen Sensor (HO2S)
1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Vehicle Jacking and Lifting.
2. Remove the 7 bolts (5 shown) and the LH splash shield.
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To install, tighten to 10 Nm (89 lb-in).
3. Disconnect the LH Heated Oxygen Sensor (HO2S) electrical connector.
4. NOTE: If necessary, lubricate the sensor threads with penetrating and lock lubricant to assist in removal.
Using the Exhaust Gas Oxygen Sensor Socket, remove the LH HO2S.
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Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the Appendix.
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To install, tighten to 48 Nm (35 lb-ft).
RH HO2S
5. Disconnect the RH HO2S electrical connector.
6. NOTE: If necessary, lubricate the sensor threads with penetrating and lock lubricant to assist in removal.