How To Clean An O2 Sensor In Easy And Simple Steps

The oxygen sensors are essential components in a vehicle’s exhaust system. Since the car is regularly used on a daily basis, items such as the coolants and oil settle in the oxygen sensors over time. So, you need to know how to clean an O2 sensor.

It is important to clean the oxygen sensor to make sure that functionality is not destroyed. In case you neglect cleaning the sensor, it may result in issues such as reduced performance and inefficient combustion, and it may force you to replace it. Note: The gasoline is a very flammable product; hence, ensure to place it far away from the potential heat items when conducting this process.

What You Will Need

1. The Goggles And The Work Gloves

CLC Custom Leathercraft 125M Handyman Flex Grip Work Gloves, Shrink...
  • SHRINK RESISTANT: These work gloves are made with synthetic leather, providing toughness,...
  • COLD WEATHER INSULATION: Keep your hand and fingers warm while working in winter...
  • STAYS ON: Wing closing strap prevents work gloves from slipping off when they become wet...

These two products will help you stay protected throughout the whole method. These two products should not be optional.

2. Car Jack

3 ton Steel Heavy Duty Floor Jack with Rapid Pump by USATNM
  • Super-tough precision welded construction with an industrial grade finish
  • Industrial quality for professional mechanics and hardcore automotive enthusiasts
  • Rapid Pump exclusive dual parallel pump system lifts with far fewer pumps

You cannot be in the position of removing the oxygen sensors when the vehicle is at the ground level. It is essential that you utilize the jack safely to avoid the car from falling back.

3. A Wrench

STANLEY MaxSteel Adjustable Wrench, 12-Inch (90-950)
  • Mpn: 90-950
  • Country of manufacture: China
  • Manufacturer: Stanley

To make work easier, the only device you require is the audio wrench to be able to remove the oxygen sensors easily.

4. WD-40 and Gasoline

WD-40 110057 Multi-Use Product Spray with Smart Straw, 8 oz. (Pack of...
  • 8-oz. aerosol canister is sized for portability
  • Cleans grease, grime and dirt
  • Removes adhesives, bugs, tar and more

In this process, you will need some chemicals. Some of the chemicals include a can of WD-40 as well as few gallons of gasoline.

5. A Container

The container will be utilized in holding the gasoline together with your oxygen sensors. Hence, make sure the container is large enough and tough enough. The container should consist of a tight lid.

6. Soft-Brittle Brush

You will need the soft-brittle brush if the oxygen sensors fail to get cleaned up after soaking them completely.

7. Paper Towel

Paper Towel

The paper towel will be used to dry the oxygen sensors after cleaning them.

Step By Step Method On How To Clean An O2 Sensor

Step 1: Protect Yourself And Prepare The Vehicle

Prepare The Vehicle

It is important to always protect yourself before embarking on any mechanical or cleaning process of the car. In this cleaning process make sure to protect yourself with the goggles and the work gloves, especially when coming in contact with the gasoline. The initial step to cleaning your oxygen sensors is to find where they are located and remove them. You will have to utilize the jack to access the oxygen sensors easily. Park the vehicle in a well-lit, clutter-free, and properly-ventilated place.​

Then, utilize the jack to lift your car, ensuring that it is held in the right position. Use the jack stands to make sure that the vehicle is lifted well for you to perform your task under it.

Step 2: Find and Eject The Oxygen Sensors

oxy sensor

Go under your vehicle and get to find your oxygen sensors which require being cleaned. At the front of the converter, you can easily access the oxygen sensors that goes upstream.

The oxygen sensors which go downstream can be easily located just right after your converter.

Now, take the WD-40 and spray it on your sensors to lubricate them for you to remove them easily.

After around 10 minutes, unplug them, utilizing the wrench to free your sensors from the fittings.

Step 3: Submerge Your Sensors In The Container

To get rid of any leaks, it is essential you get a container that has a lid that perfectly fits at its edges. Before you continue with the cleaning process, ensure that the container you are using is safe to fill it with gasoline.

Put your oxygen sensors in your container and carefully pour the gasoline from a gas can in the container as well. Ensure that the amount of gas that you pour in the container is enough to cover your oxygen sensors.

When you complete filling it, seal the lead of your container, take it and swirl the container around. Make sure not to stir or shake it too hard. By doing this, you will be sure that all the parts of the oxygen sensors will be properly cleaned. When you feel that the gas has been moved enough, you are required to permit the container to rest. Let your container rest in a dry and cool area throughout the night to offer the gas plenty time to react with the dirt and the settlements on the oxygen sensors.

Step 4: Stir Your Mixture Again

When the night ends, you are now in the position of beginning with the rest of the cleaning procedure.

You can lift your container and rotate it around one more time to re-agitate your mixture inside the container.

Step 5: Brush The Sensors Lightly

In case the sediments and the dirt have not completely come off the oxygen sensors after their gas soak, feel free to take a medium and soft-bristled brush to the sensors.

Insert your brush in the gasoline. It is recommended you lightly scrub every oxygen sensor when still in the gasoline. Make sure not to scrub too hard to prevent any damage. This process will eliminate any dirt or sediments that might be left.

Step 6: Dry And Place The Sensors Back Into Their Position

Utilize the paper towel in drying the oxygen sensors and continue in fitting them back in their correct location.

Use your wrench in tightening the bolts on your oxygen sensors for them to be secure.

You can watch this video more details:

How To Clean An O2 Sensor: Conclusion

Cleaning an oxygen sensor is not hard once you follow the above easy and simple steps.

After following the above easy and simple steps on how to clean an o2 sensor, be sure that your oxygen sensors will be properly cleaned not to affect the performance of your car.

Last update on 2021-03-04 at 07:57 / Affiliate links / Images from Amazon Product Advertising API

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