How to Clean a Clogged Catalytic Converter: Signs, Methods, and Tips

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Catalytic converters are essential for reducing harmful emissions from your car’s exhaust. However, they can get clogged with carbon and other buildup over time. This can affect your engine’s performance and fuel efficiency. To clean a catalytic converter, you can either add a cleanser to your gas tank that will move through the exhaust system or do a more thorough cleaning by removing the converter.

While cleaning can be a cheaper option, it is important to remember that it may not always fix the problem. In some cases, replacing the catalytic converter might be the only solution if it is not working properly.

Here, in this blog, we will cover why it is important to keep your catalytic converter clean, how to tell if it is clogged and how to clean catalytic converter. So, read on!

Why is a clean catalytic converter important?

A clean catalytic converter is important for several reasons. It helps reduce harmful emissions by turning toxic gases into less harmful ones. This protects the environment and improves air quality.

Second, it helps keep your engine running smoothly. A clogged converter can block the exhaust flow and reduce engine power and fuel efficiency. Lastly, a properly working catalytic converter is necessary to pass emissions tests and meet legal standards. 

What can cause a catalytic converter to become clogged?

A catalytic converter gets clogged or dirty over time due to the build-up of carbon deposits from burning gasoline in the engine. If the engine does not burn the fuel completely, some unburned fuel can get into the exhaust system and cause more carbon build-up inside the converter, ultimately blocking the flow.

Moreover, the converter’s honeycomb structure can get clogged with soot if coolant or oil leaks into the exhaust. In short,  a catalytic converter depends on other car parts working properly to stay clean and last longer. 

What are the signs of a clogged converter?

It is important to watch for signs that your converter may be clogged. These can include less engine power, slower acceleration or the engine hesitating when you try to speed up.

A clogged converter can also make your engine run less efficiently and cause you to use more fuel. In addition, if the check engine light comes on, it could be a sign that there is an issue with the catalytic converter or the emissions system.

What are the methods for catalytic converter cleaning? 

The catalytic converter is a vital part of your vehicle that helps improve performance and reduce harmful emissions. You might experience slower acceleration, loss of power, poor fuel efficiency and unpleasant smells without a properly working converter. Therefore, if your converter is not performing well due to a clog, it is important to clean it to prevent further damage.

One simple way to clean a clogged catalytic converter is by using additives or a catalytic converter cleaner. This method is easy and does not require much skill. All you need to do is add the cleaner to your gas tank, and it mixes with the fuel. The cleaner works by breaking down the carbon and buildup inside the converter.

Do not forget to follow the instructions on the catalytic converter cleaner you choose and pick one that is suitable for your vehicle. Some cleansers work for both gasoline and diesel engines.

Another option is to remove the catalytic converter and clean it manually. However, this method takes more time and requires mechanical skills. You can also risk damaging the converter during removal or reassembly. If you choose this method, you can try one of the following techniques:

• Soaking: Submerge the catalytic converter in a soapy water solution or degreaser. Let it soak overnight, then clean off any debris and let it dry completely. 
• Thermal cleaning: Driving the car at high speeds for a long time can help burn off the carbon deposits and clear the clog in the converter.
• Chemical cleaning: Use a special chemical catalytic converter cleaner to spray the inside of the converter to break down the carbon buildup and help restore the converter’s performance. 
• Pressure washing: You can use a pressure washer to spray water through the converter to remove stubborn deposits. Just remember to use the lowest pressure setting to avoid damaging it. 

What should you avoid when cleaning a catalytic converter?

Before catalytic converter cleaning, ensure it is the right solution for your issue. If you are using a cleaner, check that it is the right type for your vehicle. Some cleaners work for all engines, but it is always best to double-check. In addition to this, ensure there is enough fuel in the tank before adding the cleaner.

If you are removing the converter for a deeper clean, make sure the chemicals you use are not corrosive. Set the pressure washer to the lowest setting to avoid damaging the converter. When reinstalling the converter, make sure it is properly aligned and securely attached with no gaps. 

Is cleaning the catalytic converter always a successful solution?

Unfortunately, catalytic converter cleaning does not always fix the problem. If the converter is damaged or faulty, cleaning it will do no good, as the issues you experienced before will likely come back.

In this case, where cleaning does not work, replacing the converter is the only option. However, if you are unsure about the process, it is a good idea to consult a professional for assistance. 

Are catalytic converter cleaning products worth using?

Catalytic converter cleaning products are worth considering as they can help you avoid the high cost of replacing your converter. These cleaners are designed with solvents that not only clean the catalytic converter but also other parts like fuel injectors and oxygen sensors. The best part is that they are easy to use and affordable. You can easily find them at most auto parts stores or buy them online.

Final thoughts

In conclusion, it is important to keep your catalytic converter clean for good engine performance, fuel efficiency and passing emissions tests. Cleaning can also help fix clogging issues.

However, it might not work if the converter is damaged. You can watch for signs of a clogged converter and use the right cleaning methods to extend the life of your catalytic converter. If cleaning does not solve the problem, it is best to consult a professional or replace the converter to keep your car running well.