5 Quick & Cheapest Ways to Fix Catalytic Converter

5 Quick & Cheapest Ways to Fix Catalytic Converter

The exhaust system would not be complete without a catalytic converter. Its primary function is to process exhaust gases before they are released into the environment. In addition, if the converter fails, it can harm the engine and cause a variety of problems. If the catalytic converter is not working properly, it is critical to repair it.
Catalytic converters help to reduce vehicle emissions into the environment when driving. This component is now needed on all automobiles; however replacing it may be pricey. Follow this article to learn how to quick fix a catalytic converter without having to replace it.
If you know cheapest way to fix catalytic converter without changing it, you may not only solve the problem quickly but also save money by not having to replace it or hire a professional.

When To Change Catalytic Converter

It’s difficult to drive a car with a blocked catalytic converter. You risk damage your car’s engine in addition to contributing to environmental pollution. When a car’s catalytic converter becomes blocked, various symptoms appear. They are as follows:

  • Engine has weak acceleration or is difficult to start– These symptoms might suggest a blocked catalytic converter, which restricts exhaust flow from the engine. The engine is effectively “choked” by a blocked catalytic converter, which prevents it from “exhaling” the exhaust.
  • The creation of hydrogen -sulphide (H2S) causes a sulphur or “rotten egg” odour, which is a potential symptom of catalytic converter pollution. Ammonia (NH3) odor might potentially suggest a problem with the catalyst.
  • Internal leakage– overheating may occur if the catalytic converter’s casing is discolored or damaged.
  • When starting the engine- rattling sounds might indicate a faulty catalyst.
cheapest way to fix catalytic converter

A malfunctioning catalytic converter might potentially be the cause of failing the yearly or semi-annual emissions test.

  • Warning lights on vehicles -The most typical catalytic converter issue signal is an illuminated check engine light or malfunction indicator lamp (CEL or MIL) with a catalytic converter diagnostic trouble code (DTC).

Quick & Cheapest Way To Fix For Catalytic Converter

There are a few things you can do to fix a catalytic converter that don’t require a long repair or replacement. These are all easy things worth attempting before spending a lot of money on a replacement.
However, as previously stated, if your catalytic converter has:

  • Noises of crackling
  • Discoloration
  • Warping
  • Sulfur Odor

It may not be able to repair it without fully replacing it. If that isn’t the case, use these steps to repair your catalytic converter without having to replace it:

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1. “Italian fine-tuning”

Blocked up catalytic converters is one of the difficulties that a “Italian Tune-Up” solves. Highest drivers do not drive hard enough to heat their catalytic converter to its most efficient temperature, which is between 800°F (426°C) and 1,832°F (1,000°C), causing it to break prematurely.

Multiple forceful accelerations in a car may heat the catalytic converter sufficiently to burn off performance-robbing deposits in the intake, cylinder head, exhaust, oxygen sensors, and the converter.

2. Use Fuel Supplements

Using a gasoline additive on a regular basis will improve the efficiency of your engine and aid in the cleaning of your catalytic converter. This is especially true for people who use standard gasoline instead than premium or super-premium fuel, as the latter contains additives.

Those experiencing troubles with engine performance, poor gas economy, or other catalytic issues should try switching to premium or super-premium gas for a period to see if it helps or cures the problem.

You might try lacquer thinner for this. Just transfer a full gallon of the thinner into a half-filled gas tank. Then go on a road excursion for around 150 miles at highway speeds. Another approach is to drive the car in the driveway for approximately a half-hour at 2500 RPMs. This will clear your car of the entire bad gunk that gets caught in your catalytic converter, allowing it to work properly once again.

cheapest way to fix catalytic converter

3. Clean The Catalytic Converter

You can attempt to “wash” your catalytic converter; however this will need the removal of the catalytic converter. This may sound intimidating to someone who is unfamiliar with mechanical devices, but it is not as difficult as it appears. All you have to do is remove it and pressure wash away the entire gunk that has built up within the converter.

To get it all, you’ll have to clean the component from both the front and rear ends.

Marinate the part in hot water with a simple laundry detergent or degreaser to attain a thorough clean. Make sure you use anything that can get rid of the thick oil build-up. Later, power wash it, rightly dry it, and switch it.

4. Drive Regularly

Although the name is hilarious, this is a solid way for fixing fundamental automobile difficulties, including the catalytic converter. To understand how this works, you must first understand how the catalytic converter functions.

To obtain an efficient operating temperature, catalytic converters must be pushed forcefully at times. That’s between 800 and 1,832 degrees Fahrenheit. The problem is that most individuals never drive a car aggressively. They usually take short journeys to work or pick up the kids at slower speeds.

Because your catalytic converter never reaches the proper temperature to do its function, simple driving might lead it to fail sooner. This warms your converter and burns off deposits in the converter, as well as the intake, oxygen sensors, cylinder heads, and the exhaust system. Above all, ensure that you do it safely.

5. Exhaust Troubleshooting

Oxygen sensor readings can be affected by a leaking exhaust system without triggering other DTCs. Catalytic converter operation can be restored if exhaust leaks are corrected, at least according to the ECM. Corroded flex pipes and worn exhaust gaskets are two typical issues that may be fixed for a lot less money and with a lot more effectiveness than replacing a catalytic converter.

How to Clean The Catalytic Converter Without Removing It

cheapest way to fix catalytic converter
  • Alternative option is to remove and clean the catalytic converter. After removing the catalytic converter, blast any contaminants from the matrix with a pressure washer. Make sure the unit is flushed from both ends.
  • Another choice is to soak the catalytic converter in a solution of hot water and degreaser or laundry detergent overnight. This procedure takes longer, but it is required to dissolve the deposits that have clogged your catalytic converter. Before replacing the catalytic converter, make sure it is totally dry after washing or soaking.

How Long Does It Take To Fix A Catalytic Converter?

A catalytic converter replacement typically takes 1-2 hours. It’s simple to get to, so the mechanic won’t have to disassemble your automobile to get rid of the old one. This will help you save a lot of time!

By putting your registration number and postcode into our online booking tool and comparing garages around you, you can receive a pricing for your catalytic converter replacement.

What To Do After Replacing Catalytic Converter

Sometimes the catalytic converter must be changed (for example, if it is internally damaged or burned down). If you need to replace your catalytic converter, follow these guidelines to ensure it lasts as long as possible.

  • Cars enjoy being driven, don’t leave your automobile unattended for weeks at a time, and take a few lengthy journeys rather than only short excursions. Once a week, spend at least 20 minutes driving at highway speeds to establish appropriate operating temperature.
  • Maintain regular maintenance, such as oil changes, air filter replacements, and inspections. If you or your technician notices anything that requires attention, take care of it soon once to avoid damaging the catalytic converter.
  • Address the check engine light as soon as possible. If the MIL glows, the engine is most likely running in open loop, using programming rather than feedback. The engine may run excessively rich or too low in open loop, which might damage the catalytic converter.
  • If you discover that switching to increased fuel cures your catalytic converter problem, consider doing so at least once a year. The first switch cleans the catalytic converter, but a permanent switch might keep it in good working order for the rest of your vehicle’s life.

Are Catalytic Converters Expensive To Replace

Catalytic converter repairs do not have a defined pricing, however they might cost anywhere from $1,000 to $2,500.

Some factors influence the price you pay are-

  • Your vehicle’s manufacture and model
  • Fees for diagnostics and other difficulties
  • The time it takes to replace something.
  • The replacement part’s quality

It all boils down to frequency and complexity when it comes to the manufacture and model.


1. How Do You Unclog A Catalytic Converter?

The good news is that you can unclog your catalytic converter in one of two methods. However, there are a few factors to keep in mind.

It’s best if you double-check that the catalytic converter isn’t completely blocked. You must also ensure that it is not damaged. If your catalytic converter is in any of these conditions, you should seek professional assistance rather than trying to fix it yourself. After that, you may choose from one of these procedures to unclog your catalytic converter. This is one of the cheapest way to fix catalytic converter.

2. How Do I Increase The Life Of My Catalytic Converter?

Have your EGR system examined at. The exhaust gas recirculation valve, or EGR valve for short, is an essential element of your engine’s exhaust system.

Never use silicone coatings on your exhaust system, and keep an eye on it.

3. How Do You Unclog A Catalytic Converter Without Taking It Off?

  •  Using a catalytic converter cleaner product is the simplest way to clean a catalytic converter without removing it.
  • Fill the gasoline tank with catalytic converter cleaning.
  • Take a drive in your automobile.

4. What Are Signs Of A Clogged Catalytic Converter?

  • Engine performance is weak.
  • Acceleration is reduced.
  • Exhaust smoke is dark.
  • The exhaust smells like sulphur or rotting eggs.
  • Heat under the car is excessive.


We may learn how to fix catalytic converter without replacing it by driving the automobile frequently and maintaining it in good functioning order. Even if you have a difficult converter, if you follow this advise, the temperature will rise to the proper level and the obstructing particles will be burned on a regular basis. Your engine will eventually get rid of it, and your catalytic converter will never have to deal with it again.

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