Town & Country V6-3.3L VIN R (2003)
Oxygen Sensor: Service and Repair
Downstream O2 Sensor
REMOVAL - DOWNSTREAM 1/2
1. Disconnect the negative battery cable.
2. Raise and support the vehicle.
Fig. 26 Downstream Oxygen Sensor(1/2)
3. Disconnect the electrical connector.
Fig. 27 Downstream 2/1 O2 Sensor
4. Use a socket such as the Snap-On YA8875 or equivalent to remove the sensor.
5. When the sensor is removed, the threads must be cleaned with an 18 mm X 1.5 + 6E tap. If using the original sensor, coat the threads with Loctite
771 - 64 anti-seize compound or equivalent.
INSTALLATION - DOWNSTREAM 2/1
The O2S is located on the side of the catalytic converter.
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
