Explorer Sport Trac 2WD V6-4.0L (2009)
Oxygen Sensor: Service and Repair
Catalyst Monitor Sensor
Catalyst Monitor Sensor
Removal
1. With the vehicle in NEUTRAL, position it on a hoist.
2. If the RH Catalyst Monitor Sensor (CMS) is being serviced, remove the 2 bolts and position the heat shield aside.
3. Disconnect the CMS electrical connector.
4. NOTE: If necessary, lubricate the CMS with penetrating and lock lubricant to ease removal.
Using the Exhaust Gas Oxygen Sensor Socket, remove the CMS.
Installation
1. Apply a light coat of anti-seize lubricant to the threads of the CMS.
2. Using the Exhaust Gas Oxygen Sensor Socket, install the CMS.
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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 41 Nm (30 lb-ft).
3. Connect the CMS electrical connector.
4. If the RH CMS is being serviced, position the heat shield and install the 2 bolts.
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Tighten to 20 Nm (177 lb-in).