Ranger 4WD V6-4.0L (2009)
Oxygen Sensor: Service and Repair
Heated Oxygen Sensor (HO2S)
Heated Oxygen Sensor (HO2S)
Removal
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect the Heated Oxygen Sensor (HO2S) electrical connector.
3. NOTE: If necessary, lubricate the HO2S with lock lubricant to assist in removal.
Using the Exhaust Gas Oxygen Sensor Socket, remove the HO2S.
Installation
1. Apply a light coat of nickel anti-seize lubricant to the threads of the HO2S.
2. Using the Exhaust Gas Oxygen Sensor Socket, install the HO2S.
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Calculate the correct torque wrench setting for the following torque.
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Using the Exhaust Gas Oxygen Sensor Socket, tighten to 48 Nm (35 lb-ft).
3. Connect the HO2S electrical connector.