3 Signs Your Oxygen Sensor Needs Replaced

Posted on: 29 April 2015

There are so many components on modern vehicles that it can be difficult to make sure that everything is working properly. The oxygen sensor on your vehicle is responsible for controlling the amount of oxygen that is released in the form of exhaust from your vehicle. The oxygen sensor relays this information to your emission control system and plays a large role in ensuring that your emission control system functions properly. Here are the three main signs you'll start to notice when your oxygen sensor needs replaced.

1. Your Check Engine Light Will Turn On

There are multiple systems that can engage your check engine light. One of the most common reasons for a check engine light turning on is an issue with your emission control system.

Don't freak out if your check engine light comes on. Your check engine light is just giving you a heads-up that you have an issue you need to look into. All you need to do is swing by your local mechanic or oil change shop for a quick drop-by appointment.

They can hook up their computer analysis system to your vehicle and quickly figure out what is wrong. Their computer system will be sent specific codes that let mechanics know which system needs further inspection. Your mechanic will be able to let you know if your oxygen sensor is causing the check engine light to turn on.

2. You Will Start To Notice That You Are Getting Less Miles Per Gallon

Your oxygen sensor plays a key role in the fuel economy of your vehicle. Your oxygen sensor reads how much oxygen is released in the form of exhaust from your vehicle. It sends this information back to your emission control system. Your emission control system uses this information to adjust how much fuel and oxygen needs to be released.

When your oxygen sensor stops working, your emission control system no longer receives this information. Your emission control system is forced to release a set rate of fuel and oxygen. This rate will not be as beneficial to the fuel economy of your vehicle.

3. Your Engine Will Feel A Little Off

Although a small piece, your oxygen sensors helps keep your engine running smoothly. It helps your engine maintain the right amount of fuel and oxygen. It helps ensure that your engine has the right balance of lubrication.

If you ignore that check engine light, over time, your engine will start to run a little rougher since it is not getting the correct information it needs to stay properly calibrated. Your engine may make more noise as you drive your vehicle, and you may even hear strange sounds, like little pings, coming from your engine. Your oxygen sensors play a vital role in ensuring the longevity of your engine.

If you notice any of the three signs listed above, schedule an appointment to have your oxygen sensors replaced today. Although you can continue to drive without working oxygen sensors, over time you will notice negative effects on your fuel economy and to your engine if you fail to replace your broken oxygen sensors. You can contact a local repair shop, such as National Transmission Inc, if you have questions on your car's health.


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