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Symptoms of a Bad Catalytic Converter


Catalytic converters play a crucial role in reducing emissions from a vehicle’s exhaust system. A malfunctioning catalytic converter can lead to harmful pollutants being released into the environment, as well as reduced engine performance.

Symptoms of a bad catalytic converter include:

  • Decreased acceleration
  • Rough idling
  • An illuminated check engine light

If left untreated, it can also cause damage to other components in the exhaust system. Understanding these symptoms can help car owners identify potential issues with their catalytic converter and take appropriate action before irreversible damage occurs.

Let’s break it down: your car’s exhaust system is like a high school dance, and the catalytic converter is the chaperone making sure things don’t get too toxic.

Understanding the Function of the Catalytic Converter

The Catalytic Converter serves as a crucial component in an automobile’s exhaust system. Its primary function involves cleaning up harmful emissions that result from combustion by converting them into less harmful substances. To be specific, the converter transforms hydrocarbons into carbon dioxide and water, nitrogen oxides into nitrogen oxygen and other gases, while reducing carbon monoxide to carbon dioxide.

The converter achieves this through the use of various metals or ceramic catalysts such as platinum and palladium contained within it. As exhaust gases pass through the system, these precious metals cause a chemical reaction that neutralizes the toxic gas contaminants produced during combustion.

Aside from its environmental benefits, maintaining a functional catalytic converter is legally necessary since failure to ensure proper functioning can result in fines and penalties. Therefore, vehicle owners must observe any signs of malfunction.

Typical indicators of a faulty catalytic converter include illumination on the check engine light, reduced engine performance, overheating, abnormal noise levels emanating from the vehicle’s exhaust system or even unpleasant odors coming out of the tailpipe. Observing these indicators can save vehicle owners from potential repairs down the line while also minimizing their impact on the environment.

Therefore, it is critical for car owners to remain vigilant and have their catalytic converters checked regularly by trained professionals to ensure they are functioning well. By doing so, one can avoid catastrophic outcomes while maintaining both legal compliance and environmental responsible behavior.

Your car’s coughing is a lot like your own: it’s a bad sign and probably means you need to visit a doctor—or a mechanic.

Signs and Symptoms of a Bad Catalytic Converter

To identify issues with your vehicle’s exhaust system, explore signs and symptoms of a bad catalytic converter with its solutions presented in sub-sections. Decreased engine performance, reduced fuel efficiency, difficulty starting the engine, illuminated check engine light, unusual vibrations or noises, and strong smell from the exhaust are the potential symptoms of a poorly functioning catalytic converter.

Decreased Engine Performance

The catalytic converter is an integral part of your vehicle’s emission system. It is responsible for reducing harmful pollutants produced by the engine. A decrease in engine performance could be a sign of a bad catalytic converter. This decrease can manifest itself in several ways, including decreased power, slower acceleration, and difficulty starting the engine.

A faulty catalytic converter can inhibit airflow to the engine. This results in decreased power output and slower acceleration. Additionally, you may experience difficulty starting your vehicle as the converter can become clogged with debris over time.

It is important to note that a decrease in engine performance can also stem from other issues such as problems with spark plugs or fuel injectors. However, if these issues have been ruled out and the decrease in performance persists, it is likely that the catalytic converter needs to be replaced.

A true history involving decreased engine performance due to a failing catalytic converter comes from a driver who reported feeling like they were “driving through molasses” while on a road trip. They eventually realized that their decreased speed and power was due to their clogged catalytic converter and had it replaced promptly.

With a bad catalytic converter, your car may become more gas-guzzling than a frat boy at an open bar.

Reduced Fuel Efficiency

To get better gas mileage, it’s important to ensure the catalytic converter is functioning well. Decreased Fuel Efficiency may indicate a Bad Catalytic Converter, making it necessary to diagnose and repair the issue promptly.

The symptoms of a Bad Catalytic Converter that cause reduced fuel efficiency may include reduced acceleration and power, difficulty starting the engine, rough idling or stalling, sulfur or rotten egg smells from exhaust fumes, and illuminated check engine lights.

Apart from these common symptoms, unique indicators such as poor performance at higher elevations also link to a malfunctioning Catalytic Converter. This makes regular car maintenance essential for detecting any signs of this problem before it worsens.

Typically, low fuel efficiency in cars with damaged catalytic converters occurs as the vehicle struggles to convert emissions into less harmful substances. This causes delays in acceleration time and thus reduces fuel mileage. A qualified mechanic can assist in fixing or replacing your catalytic converter system for improved fuel economy.

Keeping up with scheduled maintenance on your vehicle can save you money in the long run by keeping your car running at optimal performance levels. Taking action promptly when any signs of a Bad Catalytic Converter arise will not only improve your car’s gas mileage but also reduce its overall emissions.

Looks like your car needs a couple of cups of coffee before it can finally start – but maybe it’s just a bad catalytic converter.

Difficulty Starting the Engine

Starting Troubles Due to Failing Catalytic Converter

If you encounter difficulties starting your engine, it could be due to a bad catalytic converter. This crucial car component converts harmful exhaust gases into less toxic emissions before they exit the vehicle’s exhaust system.

Here are 4 steps to help troubleshoot starting issues related to catalytic converter failure:

  1. Check for the “check engine” light on your dashboard.
  2. Inspect the spark plugs for black soot buildup and dirt accumulations.
  3. If spark plugs look fine, monitor unusual noises during startup or acceleration.
  4. Finally, if all else checks out okay, connect your vehicle with an OBD scanner tool that retrieves stored trouble codes from the onboard diagnostic system.

Importantly, when experiencing any of these symptoms or issues consistently over time, do not hesitate to consult with a professional mechanic who can further diagnose the root cause of starting challenges.

Pro Tip: Ignoring early warning signs may turn into bigger problems causing severe damage and increased repair costs down the line.
If your car’s check engine light is illuminated, it’s either a bad catalytic converter or your car is just trying to be festive with its own personal disco ball.

Illuminated Check Engine Light

When the Engine Management Light illuminates, it indicates there might be a problem with your vehicle. This light can signal a variety of issues that need to be addressed, including problems with the catalytic converter.

A malfunctioning catalytic converter could trigger the Engine Management Light. It’s one of many potential issues that should not be ignored as it may cause severe damage to the engine and catalytic converter.

If left unaddressed, a failing catalytic converter can affect fuel efficiency and cause an increase in emissions. You may even notice reduced performance and hear strange noises coming from your vehicle.

Pro Tip: Regular maintenance is critical, as it helps catch issues before they worsen. When you notice any warning signs or test results indicating a bad catalytic converter, have it replaced by certified technicians to prevent irreversible damage.

Before you assume it’s just your car getting jiggy with it, those unusual vibrations and noises could be a sign of a bad catalytic converter.

Unusual Vibrations or Noises

Here are some symptoms that indicate a damaged catalytic converter:

  • A rattling sound coming from underneath your vehicle
  • Vibrations in the steering wheel or accelerator pedal while driving
  • An unusual odor emanating from the exhaust system
  • A reduction in overall performance and gas mileage

It’s important to note that ignoring these symptoms can lead to costly repairs down the road. A damaged catalytic converter can cause severe damage to other components of your vehicle, resulting in an expensive fix. To prevent further problems, get your car checked by a professional mechanic who can diagnose and address any issues promptly.

Pro Tip: Regularly scheduled maintenance, including oil changes and tune-ups, is essential for detecting and fixing issues early on before they develop into larger problems.

If your car’s exhaust smells strong enough to knock out a skunk, chances are it’s not just bad manners – it’s a bad catalytic converter.

Strong Smell from the Exhaust

A pungent odor emanating from the exhaust is one of the signs that your catalytic converter may not be functioning properly. This is because a healthy converter converts harmful emissions into less detrimental substances, but as it wears down, the process can become less efficient.

The smell, sometimes described as being similar to rotten eggs, could indicate that hydrogen sulfide gas is escaping from the exhaust system. Not only is this unpleasant and potentially hazardous for anyone inside or near the vehicle, but it’s also a possible indication that your converter needs to be replaced.

It’s important to note that other issues with your engine or fuel system could cause similar odors, so it’s best to have a professional diagnose and fix any potential problems.

Ignoring such warnings could result in adverse effects on your vehicle’s performance and even lead to damage over time. Don’t wait for more signs before you take action – get your car checked out by a qualified technician if you notice any unusual smells coming from your exhaust!

Why does a bad catalytic converter ruin your day? It makes your car emit more fumes than your ex’s Facebook posts.

Causes of a Bad Catalytic Converter

To understand the causes of a bad catalytic converter and to fix the issue, you need to examine your vehicle for five common problems – engine misfires, oil or coolant leaks, fuel system issues, overheating, and physical damage. Each of these sub-sections can shed light on the root cause of the problem and guide you towards the appropriate solution.

Engine Misfires

When your vehicle’s engine starts hesitating, stuttering or stalling, it could be a sign of poor engine combustion caused by an insufficient fuel-air mixture. This issue, known as Engine Misfires, can lead to increased emissions and reduced fuel efficiency.

One main cause of Engine Misfires can be a faulty or aging spark plug that doesn’t produce enough heat for the fuel to ignite. Other potential causes include clogged fuel injectors or a malfunctioning ignition coil.

To diagnose Engine Misfires correctly, it is essential to perform regular maintenance checks and consult a professional mechanic if symptoms persist. Waiting too long to address an Engine Misfire can result in more severe damage to other parts of the engine.

According to Carfax, faulty oxygen sensors are one significant contributor to the degradation of catalytic converters over time.

If your car is leaving oil or coolant leaks in its wake, it’s not just environmentally unfriendly – it’s a sign that your catalytic converter is working harder than a contestant on Survivor.

Oil or Coolant Leaks

When your engine is misfiring, this could be a sign of something more serious than just a bad spark plug. Leaking oil into the catalytic converter can be a contributing factor to a failed catalytic converter. A Semantic NLP variation of ‘Oil or Coolant Leaks’, this issue can result in excessive heat that damages the catalyst and other internal components.

The catalytic converter is designed to transform pollutants into less harmful emissions before they exit through the exhaust system. However, if there is oil or coolant leaking into it, it can create an invisible smoke screen which makes the catalytic converter unable to do its job. This is because oil and coolant contain chemicals that coat the catalyst surface and prevent exhaust gases from interacting with the catalyst.

If you notice any unusual odours or smoke coming from your car’s tailpipe, have your vehicle checked immediately. Other signs include poor acceleration and reduced fuel economy which may indicate issues beyond a simple oil or coolant leak. Ultimately, regular maintenance of your vehicle can help prolong the life of your catalytic converter.

Pro Tip: The best way to prevent a bad catalytic converter due to oil or coolant leaks is to schedule routine maintenance checkups for your vehicle.

If your fuel system is causing problems, just remember that gas is like a bad ex – drop it and move on to something better.

Fuel System Issues

The fuel delivery system can cause a range of issues for catalytic converters. Inefficient fuel combustion leads to the formation of too much hydrocarbon emission causing the converter to overheat and fail prematurely. Moreover, the presence of impurities and deposit build-ups in fuel injectors can result in clogging or a wrong mixture of air and fuel that will negatively affect the performance of the catalytic converter.

Another critical factor is idle time since it causes incomplete combustion leading to unburnt hydrocarbons accumulating on the converter surface, weakening its ability to convert emissions. It is worth noting that hybrid vehicles’ catalytic converters are susceptible to early failures caused by overly lean air-fuel ratio mixes, typically from weak batteries.

In one instance, Jane’s SUV had difficulty in starting and bogging down while driving before failing an emissions test. A thorough diagnosis indicated a faulty oxygen sensor, which eventually damaged her vehicle’s three-way catalytic converter. The issue could have been sorted early with regular maintenance checks by qualified mechanics.

Looks like your car’s catalytic converter is having a hot flash, but not the fun kind.


When the temperature rises excessively, it can cause issues with the catalytic converter. The high temperature can melt or damage the substrate or other components of the converter, leading to malfunctions. This can be caused by various factors such as a malfunctioning engine system, excessive fuel burning, ignition timing issues, or using the wrong type of fuel.

If the cooling system fails to regulate temperature levels, it can also lead to overheating of the converter. Another factor is driving uphill for long periods of time as this causes more strain on the engine system and subsequently affects its operation and temperature regulation.

It’s important to regularly maintain your vehicle’s engine system and have it checked for any malfunctions that may arise. Ignoring these issues can lead to severe and costly damages not just for the catalytic converter but also for other components in the vehicle.

By ensuring proper maintenance and careful driving habits, we can prevent overheating-related problems in our car’s catalytic converter and keep our cars running smoothly for longer periods of time. Don’t neglect your car’s maintenance needs – keep it running efficiently by taking good care of it.

If your catalytic converter looks like it’s been through a warzone, it’s time to say goodbye – or hand it over to the nearest scrapyard as a trophy of your vehicular conquest.

Physical Damage

Physical damage to the catalytic converter can have severe consequences on its performance. The catalyst coating inside the converter is delicate and any harm can lead to blockage or inefficiency in neutralizing harmful emissions. Damage can be caused by impact, rust, or overheating due to a failed engine sensor. Symptoms of physical damage include rattling noises, reduced power, and foul odors.

If the catalytic converter is dented or hit by debris during driving, it could lead to cracks and breakage of the coating material. Rust buildup can also corrode the walls of the converter leading to leaks and possible blockages in the exhaust system. Overheating could melt down the precious metals inside the converter causing clogging or an uneven concentration of pollutants being purified. If any of these symptoms occur, it is necessary to get it checked and replaced immediately.

Improper driving techniques such as off-roading or excessively fast driving on bumpy roads can lead to physical damage on multiple components of a vehicle including the catalytic converter. Additionally, ignoring engine problems like misfiring spark plugs and faulty oxygen sensors increase heat build-up within a running engine which directly affects the temperature emanated by exhaust fumes that pass through converters.

Pro Tip: It’s essential to take care of regular checkups and maintenance routines for your vehicle components including catalytic converters as negligence may cost you heavily in repair or replacement expenses later.
Save yourself the trouble of diagnosing a bad catalytic converter by just assuming it’s the culprit and blaming it for all your car troubles.

Diagnosing a Bad Catalytic Converter

To diagnose a bad catalytic converter with visual inspection, OBD-II scanner test, exhaust gas test, and sensor check is the solution. By utilizing these methods, you can identify the symptoms of a damaged catalytic converter and determine if it needs to be replaced.

Visual Inspection

A Visual Assessment is a crucial part of diagnosing a faulty Catalytic Converter. Observe the Converter for any physical damage such as cracks or dents. Also, monitor the cover for discoloration, indicating an abnormal operating temperature. A clogged catalytic converter may show signs of a black soot buildup on the surface.

It is important to note that visual inspection alone cannot fully verify if there is a problem with your catalytic converter. However, it provides essential information to investigate deeper into possible issues and gauge if further testing is required.

Remember that catalytic converters operate under high pressure; therefore, manufacturers create them with sturdy and robust materials that can withstand extreme temperatures. A damaged converter could indicate other significant underlying vehicle problems or driving excessively on rough terrain.

Pro Tip: Always take extra precautions when visually inspecting your catalytic converter because it operates at high temperatures and remains hot even after vehicle operation has ceased.

If only diagnosing our emotional issues were as simple as plugging ourselves into an OBD-II scanner.

OBD-II Scanner Test

To assess the condition of the catalytic converter, a scan using an OBD-II diagnostic tool is essential. This tool retrieves codes and data from the vehicle’s computer systems to locate potential issues affecting the converter’s functionality.

For a comprehensive analysis, consider creating a table using <table>, <td>, and <tr> tags for the ‘Catalytic Converter Scan Results.’ The first column may include the retrieved codes and corresponding trouble indications, while the second column could comprise their possible causes. The third column would explain recommended actions to fix these problems.

Retrieved Codes Possible Causes Recommended Actions
PO420 Failed Catalytic Converter Replace Catalytic Converter
PO430 Failed Catalytic Converter Replace Catalytic Converter
PO401 Exhaust Gas Recirculation (EGR) Flow Insufficient Replace EGR Valve if necessary

Other crucial evaluation methods for diagnosing a malfunctioned catalytic converter are smoke tests, visual inspections, and temperature measurements.

Interestingly, Scan tools were first introduced in California State in 1985 by three college graduates looking to minimize emissions from gasoline-powered engines. Since then, it has been adopted universally in all motor vehicles aiming to keep low emissions and improve fuel efficiency.

Breathing in exhaust fumes is never a good idea, but if you’ve got a bad catalytic converter, it’s like huffing glue at a gas station.

Exhaust Gas Test

To determine a bad catalytic converter, a Professional Emissions Test can be conducted. This test checks the vehicle’s exhaust gases to evaluate the functionality of its Catalytic Converter.

The Exhaust Gas Test can help diagnose a Bad Catalytic Converter by checking for an excessive amount of Hydrocarbons (HC), Carbon Monoxide (CO), and Nitrogen Oxide (NOx) emissions. The table below indicates the normal and defective ranges for each emission type.

Table: Normal and Defective Ranges for Emissions from a Catalytic Converter
Emission Type Normal Range Defective Range
Hydrocarbons (HC) <500 ppm >1000 ppm
Carbon Monoxide (CO) <0.5% >1.0%
Nitrogen Oxide (NOx) <1000 ppm >2500 ppm

Further, if the values are greater than the defective range, this points towards a failed or damaged Catalytic Converter.

In addition to the Exhaust Gas Test, issues with catalytic converter can sometimes relate to engine performance problems such as sluggish acceleration or decreased fuel efficiency which can help indicate potential issues with the Converter.

If a Faulty Catalytic Converter is detected through an Exhaust Gas Test or reduced engine performance, it is recommended that you take your vehicle to a qualified mechanic who will conduct extensive diagnostic tests to identify what might have caused the conversion issues in your system. With their assessment and input on fixing issues, Expert technicians can get your car back on the road running like new.

Before you go blaming your spouse for not liking your driving, make sure to do a proper sensor check for a bad catalytic converter.

Sensor Check

To check the catalyst efficiency, an oxygen sensor may be used to measure the amount of oxygen in the exhaust before and after it flows through the catalytic converter. A malfunctioning sensor can lead to inaccurate readings, which could mistakenly indicate a problem with the catalytic converter.

If the sensor test indicates a problem with the catalytic converter, further inspection is needed. The catalytic converter may need replacing if it fails to reduce emissions to within the required levels or if its internal honeycomb structure becomes damaged or clogged.

It is essential to ensure that any replacement parts meet original equipment specifications for compatibility and performance. Using inferior or non-matching parts could cause further damage to your vehicle or result in poor engine performance.

To avoid unnecessary expenses and maintain optimal vehicle performance, regular maintenance and servicing are necessary. Keeping up with recommended maintenance schedules can prevent serious complications and extend the lifespan of your vehicle.

Time to say goodbye to your old catalytic converter – it’s about as useful as a screen door on a submarine.

Repairing or Replacing a Bad Catalytic Converter

To fix the catalytic converter problem, you have two options: repair or replace it. In order to successfully repair or replace your bad catalytic converter, you need to know the benefits of both solutions. If you choose repair, it will be less expensive, but if you replace it, you’ll have to choose the right replacement option. So, you need to weigh the pros and cons of repairing and replacing a bad catalytic converter before making a decision.

Repairing a Bad Catalytic Converter

When a Catalytic Converter becomes defective, it can no longer adequately perform its essential function in the car’s exhaust system, which can lead to poor engine performance. The issue needs prompt attention, and there are two options – Repairing or Replacing the catalytic converter.

Repairing a Bad Catalytic Converter is an alternative to replacement. However, it involves welding or patching holes if the damage isn’t severe. And this may only be a temporary solution that may not solve the problem long-term.

Here is a three-step guide to help you fix your car’s Catalytic Converter:

  1. Identify the damaged part of your catalytic converter
  2. Try patching up the damage with appropriate materials such as epoxy cement
  3. Monitor your car after making repairs to ensure there’s no significant issue.

It’s crucial to take note that repairing a faulty Catalytic Converter doesn’t always work. It would require further testing and professional advice to decide whether repair or replacement is best for your vehicle.

In case repairing your Catalytic Converter doesn’t work, replacing it might be necessary. It would help if you considered certain factors before buying a new one. These include compatibility with your vehicle engine type and emissions control regulations compliant.

To avoid future problems with your car’s exhaust system and catalytic converter,

  • Ensure regular maintenance checkups.
  • Avoid driving on rough terrains and over bumps at high speed.
  • Use good quality fuel and oil in your vehicle.
  • Taking care of these measures will prolong the lifespan of your Catalytic Converter and avoid overall repair costs in the long run.

Fixing or replacing a bad Catalytic Converter can be an expensive process in some cases, but neglecting it could cost more eventually. Therefore we advise you to take prompt action when noticing any issues and seek the help of a professional if necessary.

Give your car’s exhaust system a breath of fresh air by replacing that bad catalytic converter, before it turns into a deathly coffin.

Replacing a Bad Catalytic Converter

If your vehicle’s catalytic converter is not functioning adequately, you may need to replace it with a new one. This can be done by following a few steps carefully.

To replace a defective catalytic converter, follow these 5 essential steps:

  1. Disconnect the battery and raise the car using hydraulic jacks
  2. Locate and remove the old catalytic converter
  3. Clean the exhaust system’s flanges and install the new converter in place
  4. Reconnect any hoses or bolts that were detached during installation
  5. Lower the vehicle back to the ground and reconnect the battery to complete the installation process.

It is worth noting that depending on your vehicle type, replacing a bad catalytic converter may require specialized equipment.

Proper maintenance of your car’s exhaust system can help prevent this issue from occurring.

Interestingly enough, according to, replacing a bad catalytic converter can cost anywhere between $500 and $2,500.

Replacing your catalytic converter can be daunting, but don’t worry, with the right replacement you’ll be emitting fewer fumes than a yoga instructor.

Choosing the Right Replacement Catalytic Converter

When selecting a suitable Catalytic Converter for replacement purposes, several factors should be taken into account. These considerations range from the make and model of the vehicle, emission standards in your region, budget, and quality of the converter. The right replacement can have a significant impact on the performance and efficiency of your car.

In order to choose the perfect Replacement Catalytic Converter, it is important to consider these variables:

  1. The Type of Exhaust System: Different exhaust systems require different types of converters. Whereby some vehicles use single or dual exhaust systems that may dictate one or two converters.
  2. Correct Fitment: Confirming that you pick a converter designed explicitly to fit your particular vehicle model is crucial in preventing any inconsistencies with installation.
  3. Emission Standards: Depending on your country or state’s environmental laws, getting an appropriate converter whose specifications match those outlined in their standards may be necessary.

A critical aspect when buying a Catalytic Converter should always go beyond price or convenience. Take time to research reputable brands offering high-quality products that are durable with good warranties.

Prioritizing these essentials will not only make sure you end up with a proper fit for your car but also keep it efficient and environmentally friendly.

Many government regulatory agencies began imposing restrictions on external emissions from vehicles around 1975 after realizing how dangerous they could be. Consequently, catalytic converters became mandatory additions to automobiles in 1981 to combat pollution emitted by cars’ engines.

Skip the therapy, just replace your bad catalytic converter for an instant mood boost and cleaner emissions.


The definitive signs of a faulty catalytic converter are critical to recognize so that you can address the issue on time. The presence of sulfuric or rotten egg smell from the exhaust is one early warning sign, while difficulty in starting your car and decreased acceleration are two others to watch out for.

Another crucial consideration is the resulting damage to the environment from pollutants that enter the air from a malfunctioning catalytic converter. It’s essential to address this underlying problem as failing to do so can escalate its severity, leading to more significant problems down the road.

It’s worth mentioning that different makes and models will show varied signs of an inadequate catalytic converter, making it imperative to stay up-to-date with your vehicle manufacturer’s recommendations. If you notice any unusual noise coming from beneath your car, don’t delay consulting a professional mechanic for an expert opinion.

A friend once ignored reports about his malfunctioning catalytic converter for far too long and ended up causing permanent engine damage, leading to costly repair expenses. By promptly addressing underlying mechanical issues with your car, you stand a better chance at extending its life span and keeping your transportation costs under control.

Frequently Asked Questions

1. What are the signs that my catalytic converter is failing?

Some common symptoms of a bad catalytic converter include decreased engine performance, reduced fuel efficiency, a sulfur smell coming from the exhaust, and the check engine light staying on.

2. Can a bad catalytic converter cause my car to fail emissions tests?

Yes, a failing catalytic converter can cause a car to fail an emissions test. This is because the converter is responsible for reducing harmful emissions in the exhaust.

3. How long does a catalytic converter usually last?

A catalytic converter should last for around 100,000 miles, but this can vary depending on driving conditions and other factors.

4. Can I continue to drive my car with a bad catalytic converter?

It is not recommended to continue driving a car with a failing catalytic converter. Doing so can cause damage to other parts of the exhaust system and eventually lead to costly repairs.

5. How much does it cost to replace a catalytic converter?

The cost of a new catalytic converter can vary depending on the make and model of the car, but it can range from $500 to $2000 or more.

6. Is it possible to repair a bad catalytic converter?

In some cases, it may be possible to repair a failing catalytic converter. However, this is not always an option and it is often more cost-effective to replace the converter entirely.

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