Steps For Replacing Your Oxygen Sensor

If you paid attention in Science class, then you learned that humans require oxygen to live and function. Think of the oxygen sensor in your vehicle as a lung. Its job is to maintain the emission and cooling systems; it is essentially responsible for making your car breathe. These step by step instructions will help you to correctly identify when the oxygen sensor needs to be replaced and how to replace it properly so your car runs healthy again. 

How to Recognize an Oxygen Sensor Problem

The first step to repairing the oxygen sensor is recognizing when there is a problem. If the check engine light comes on, especially while driving, it is usually the first indication that there is an issue. A simple diagnostic test or figuring out the OBD code using a special machine will help determine if the oxygen sensor is the reason for the check engine light engaging.

Replacing Your Oxygen Sensor

Now that you have determined that the oxygen sensor is the culprit, you can follow these steps to properly change the sensor:

  1. Locate the Oxygen Sensor: Use your car manual to locate the oxygen sensor. Note that not all oxygen sensors are the same. A standard sensor looks almost like a spark plug protruding from the exhaust. Depending on your vehicle, the sensor will either be screwed or welded to the pipe.
  2. Disconnect the Sensor: Using a flat head screwdriver or a special oxygen sensor wrench, carefully remove the sensor from the electric connector. There should be tabs on either side to help the process along. Once removed, unscrew the oxygen sensor from the exhaust pipe.
  3. Double Check: Be sure that the new oxygen sensor is the correct one. Also, check to see if the new sensor came with the connection wires already attached.
  4. Replace: Once you have made sure your oxygen sensor is ready to go, reconnect the sensor.

Now that the oxygen sensor has been replaced, make sure it is working. First, turn the key in the ignition to power the car, but don't turn it all the way so you don't start the engine. Begin clearing out the OBD codes with your machine, if you have one. Otherwise, the check engine light will continue to come on.

If the car starts without issue then congratulations! You have officially completed your first intricate surgery on your car. The check engine light should have turned off, and your car should now be running smoothly and breathing correctly.

For further assistance, contact a local outlet, such as Goodfellow Motors Inc.