E 450 V8-5.4L (2009)
Oxygen Sensor: Service and Repair
Catalyst Monitor Sensor
Catalyst Monitor Sensor
Removal and Installation
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect the Catalyst Monitor Sensor (CMS) electrical connector.
3. Using the Exhaust Gas Oxygen Sensor Socket, remove the CMS.
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Apply penetrating and lock lubricant to the CMS to assist in removal.
Installation
1. Install the CMS.
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Apply a light coat of high temperature nickel anti-seize lubricant to the CMS threads prior to installation.
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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 46 Nm (34 lb-ft).
2. Connect the CMS electrical connector.