REMOVAL & INSTALLATION

NOTE: 1994–95 MPV models equipped with the 2.6L engine use 1 Oxygen Sensor (O2S). 1994–95 MPV models equipped with the 3.0L engine use 1 Heated Oxygen Sensor (HO2S). These sensors are located on the exhaust pipe between the exhaust manifold and the catalytic converter. 1996–98 MPV models use 2 HO2 sensors. V6 equipped B Series Pick-up models use three HO2S's, and 2.3L engines use two HO2S's for the engine control system. The heated sensors are located before and after the dual converters in the exhaust pipes. On 1994–95 V6 engines, there are two sensors, one is located in the left exhaust manifold and the other in the dual converter Y-pipe. 1994–95 2.3L engines use only one sensor.

1. Disconnect the negative battery cable.
2. Raise and safely support the vehicle on jackstands. From underneath, locate the oxygen sensor (arrow), which is screwed into an exhaust component

3. Disconnect the HO2S from the engine control sensor wiring.

   NOTE: If excessive force is needed to remove the sensors, lubricate the sensor with penetrating oil prior to removal. Using the proper wrench, loosen the oxygen sensor. Ensure that the wire and connector are unplugged

4. Remove the sensors with a sensor removal tool, such as Ford Tool T94P-9472-A.

   To install:

5. Install the sensor in the mounting boss, then tighten it to 27–33 ft. lbs. (37–45 Nm).
6. Reattach the sensor electrical wiring connector to the engine wiring harness.
7. Lower the vehicle.
8. Connect the negative battery cable.