How to Change the Oxygen Sensor on a 1993 Lincoln Town Car

The oxygen sensors are located in the exhaust manifold. They monitor the oxygen content of the exhaust gas stream. The oxygen content reacts with the sensor to produce a voltage output. If you notice a decrease in gas mileage, a surging of the engine when the brake is applied, the car idles roughly or your check engine light is on, you may need to replace the oxygen sensor in your 1993 Lincoln Town Car.

Things You'll Need

• Jack
• Jack stands
• Screwdriver
• Wrenches

Instructions

1. Start and run the engine for a minute or two, then shut it off. The oxygen sensor is installed in the exhaust manifold and may be difficult to remove when cold. Be careful not to burn yourself when removing the sensor.

2. Disconnect the cable from the negative terminal of the battery. Place it out of the way.

3. Raise the vehicle with a jack. Place it securely on jack stands.

4. Locate the sensor. It's mounted in the exhaust manifold on the passenger side. Disconnect the electrical connector from the sensor. Unscrew the sensor from the exhaust manifold.

5. Install the new sensor and tighten securely. Reconnect the electrical connector.

6. Lower the vehicle. Reconnect the negative terminal of the battery.

References

• Barry Miller, Machine Repairman; G.A. Richards; Spring Lake, MI
• "Automotive Repair Manual, Lincoln Rear-wheel drive models, 1970 thru 1996"; Mark Ryan and John H. Haynes; 1996