Explorer Sport Trac 4WD V6-4.0L VIN K Flex Fuel (2004)
Oxygen Sensor: Service and Repair
HEATED OXYGEN SENSOR (HO2S)
Socket, Exhaust Gas Oxygen Sensor
SPECIAL TOOL(S)
REMOVAL
Left side sensor
1. Raise and support the vehicle.
Right side sensor
2. Remove the right front wheel and tire assembly.
3. Position aside the right front fender splash shield.
Both sensors
4. NOTE: If necessary, lubricate the HO2S with lock lubricant to assist in removal.
Using the special tool, remove the HO2S.
INSTALLATION
1. NOTE: Apply a light coat of anti-seize lubricant to the threads of the HO2S.
To install, reverse the removal procedure.
