ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Heated Oxygen Sensor (HO2S)|Page 3779 > < Heated Oxygen Sensor (HO2S)|Page 3777
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Oxygen Sensor: Service and Repair
Catalyst Monitor Sensor

CATALYST MONITOR SENSOR

5.4L Shown, 6.8L Similar

Exploded View

Socket, Exhaust Gas Oxygen Sensor

Special Tool(s)

Removal

WARNING:  The normal operating temperature of the exhaust system is very high. Never attempt to service any part of the system until it has
cooled. Be especially careful when working around the three-way catalytic converter. The temperature of the three-way catalytic converter
rises to a high level after only a few minutes of engine operation. Failure to follow these instructions may result in personal injury.

Heated Oxygen Sensor (HO2S)|Page 3779 > < Heated Oxygen Sensor (HO2S)|Page 3777