Dakota 4WD V8-4.7L VIN N (2000)
Oxygen Sensor: Service and Repair
Oxygen Sensor Replacement
REMOVAL
Never apply any type of grease to the oxygen sensor electrical connector, or attempt any soldering of the sensor wiring harness. For sensor operation,
it must have a comparison source of oxygen from outside the exhaust system. This fresh air is supplied to the sensor through its pigtail wiring harness.
Oxygen Sensor Locations
For sensor locations, refer to the diagram.
WARNING: THE EXHAUST MANIFOLD, EXHAUST PIPES AND CATALYTIC CONVERTER BECOME VERY HOT DURING
ENGINE OPERATION. ALLOW ENGINE TO COOL BEFORE REMOVING OXYGEN SENSOR.
1. Raise and support the vehicle.
2. Disconnect the wire connector from the O2S sensor.
CAUTION: When disconnecting the sensor electrical connector, do not pull directly on wire going into sensor.
3. Remove the O2S sensor with an oxygen sensor removal and installation tool.
INSTALLATION
Threads of new oxygen sensors are factory coated with anti-seize compound to aid in removal. DO NOT add any additional anti-seize compound to
the threads of a new oxygen sensor.
1. Install the O2S sensor. Tighten to 30 Nm (22 ft. lbs.) torque.
2. Connect the O2S sensor wire connector.
3. Lower the vehicle.