The catalytic converter is one of the essential components of your car’s emission control system. It is supposed to treat harmful emissions produced by the engine by converting them into water and non-poisonous gases. A malfunctioning catalytic converter must be replaced as soon as possible. Accumulation of dirt and gas deposits may render it useless or cause it to malfunction;

therefore, through this article, i will show you how to clean a catalytic converter template and avoid early replacement. Replacing a catalytic converter is not the attractive option because of its cost. The cost may be the reason why you may be looking for cheaper alternatives to fix catalytic converter problems.

If your converter is making rattling noise, it means the honeycomb inside it is damaged and the only option you may have is to budget for a new one. I believe that if you follow the steps below on how to clean a catalytic converter template, you will get better service from it.


What Causes Catalytic Converter Problems

The clogging that builds up on the converter is a result of carbon being deposited as time goes by. This turns out to be the most common problem that you may encounter. The buildup prevents the catalyst from getting rid of harmful emissions from the exhaust system. Any problem that affects the catalytic converter will give you the Service Engine Soon light. You are also likely to get error codes that are associated with low catalytic converter performance.

The carbon build-up means that your engine is not burning all the fuel it is using due to low air-fuel ratio.​

What is Needed for The Cleaning​

1. Catalytic Converter Cleaner

The liquid is used to remove harmful carbon that builds up inside the exhaust pipe.


2. Wrench​

You need wrench to loosen or disconnect the catalytic converter from the exhaust manifold.​

3. Gloves​

used to protect your hands from the corrosive deposits.​

3. Gloves​

4. Dust Mask​

worn to protect you from inhaling dust particles during the cleaning process.

5. A pry bar and a hammer​

To break down larger pieces of deposited clog.

6. A Vacuum Pump or High Pressure Washer​

Used to suck out or expel debris.​

The Step by Step Procedure

Two ways are available for you to clean the converter. By physically removing the whole unit and removing the debris or using a catalytic converter cleaner, a chemical compound used to break down the deposited compound waste.​

Method 1: Manually Cleaning the Converter

Step #1: Locate the Catalytic Converter​

The catalytic converter is located under the chassis of the car. Usually located just below the front seats. You should know that the exhaust pipe enters the front of the catalytic and exits at the rear before connecting to the muffler.

Step #2: Test the Converter​

Test the converter with the engine off. You need to loosen the front clamp to disconnect the exhaust pipe at the front end. This step ensures that the exhaust is separated from the converter. Start the car and listen to the engine noise. It will be loud at first due to disconnection from the muffler. If the noise dies down, then you should know that you haven't disconnected the converter.

Step #3: Examine the Converter​

Turn off the car and remove the rear clamp and rear exhaust pipe. Shake the converter, and if you hear any rattling noise, it means the ceramic interior is broken down by heat. If you hear no rattling, it simply means the interior is clogged with oil or unburned fuel or additives.

Step #4: Cleaning the Converter​

Insert a vacuum hose pipe and suck out loose debris and ceramic dust. You should have your gloves and dust mask for protection. Use the pry bar into the opening and use a small hammer to break up the larger pieces into smaller pieces. Be sure not to use too much force so as not to puncture the metal housing. Remove all the debris and make sure the unit is completely empty.

Step #5: Re-Installing the Catalytic Converter​

Re-install the converter by re-attaching the front and the rear exhaust pipes. Once done you can start the car and take a short drive to make sure everything is functioning as expected. If all goes well, then you have successfully cleaned the converter. Depending on the level of emission you are getting after the cleaning process, you may start thinking of getting a new converter if the emission levels are still high.​

Method 2: Using a Catalytic Converter Cleaner

Catalytic converter cleaners are commonly sold in cans. They offer the simplest and a less complicated method of cleaning your converter. The good news is that you do not need the expert knowledge to remove the converter for cleaning physically. Here is the short explained process.​

Step by Step Cleaning Process Using a Cleaner​

  1. Pour the contents of the cleaner liquid into the converter tank
  2. Drive the car until the reservoir is almost empty
  3. Use an OBD2 Scanner to clear any error codes
  4. Refill your gas tank
  5. Take short drive to recalibrate the readings of your onboard computer
  6. Congratulations, the catalytic converter has been cleaned, and you do not need to worry about the emission problems.​

How a Catalytic Converter Cleaner Works

The simple job of a converter cleaner is to convert the byproducts of the burned fuel that passes through the exhaust system into vapor and harmless gases that cause less or minimal environmental degradation. This conversion is made possible through solvents that initiate a chemical reaction in the catalytic chamber.

A catalytic converter that does not work efficiently will result in accumulation of unburned fuel and gases that will damage the catalytic converter. A clear sign of a damaged converter is a distinctive foul smell.​


Finally, you have been successful in solving your car’s emission problems and probably extended the life of the catalytic converter. At the start of the article, I highlighted what causes converter problems and why there is a buildup in the exhaust system. We have two options for cleaning up the converter, either through the manual process that needs a little expert knowledge in assembly and re-assembly of the catalytic converter unit or through the labor free process of using a catalytic converter cleaner.

Cleaning the converter regularly will save you a lot of maintenance cost and will give your car the desired emission results. It is recommended that you clean your converter at least four times a year to minimize carbon build up on the walls of the converter. Using the cleaner option may require that you buy several cans to get the best results. Buying many bottles for this purpose may seem expensive, but in comparison to replacing the whole converter, it is worth the effort.

I would like to share this article on how to clean a catalytic converter template to be very vital for motorists who are keen on having clean fuel injectors and improve their fuel economy. On a final note, if after the cleaning process you are still not capable of getting desirable OBD2 Scanner readings, you may need to replace your catalytic converter.​

Please share this article so that other motorists can avoid replacing their car converters prematurely!​

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Chief editor at Paul's Gigantic Garage. I came up with this blog to help you to sort out some basic problems your car may be facing and in turn, save lots of cash by some of my DIY tips that I hope will get your car out of its current situation. I also had in mind motor enthusiasts who for the love of cars who are constantly looking for information about cars on the latest trends, questions, fixes, driving, tricks, and accessories.


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