The catalytic converter is an important part of a car's exhaust system, and any malfunction can have serious consequences. Understanding the common symptoms of a bad catalytic converter can help you identify problems quickly before they become more serious. In this article, we'll explore the most common signs and symptoms of a failing catalytic converter so that you can take appropriate action to repair it.
Bad Catalytic Converter Symptoms
Symptom 1: Vehicle’s check-engine light is on
A bad or failing catalytic converter can cause the check engine light to come on, as it isn't able to cleanse the exhaust properly.
This issue is typically caused by the buildup of oil, fuel or antifreeze in the exhaust system. When these substances build up, they restrict the flow of exhaust and lead to a decrease in engine performance. As a result, your vehicle's computer will set off an illuminated check-engine light as a warning sign that something isn't right.
Symptom 2: Starting difficulties
Another noticeable problems associated with a clogged catalytic converter is starting difficulties.
It may be caused by an increase in backpressure in the exhaust system due to the clog in the catalytic converter. This backpressure prevents proper airflow, which impedes combustion and ultimately makes it difficult for your vehicle to start up properly.
If you're experiencing any kind of starting issue, have your vehicle inspected immediately as this could be a sign that there is something wrong with your catalytic converter or other parts within the exhaust system.
Symptom 3: Sluggish engine performance
If your car’s engine seems to be running slowly and not responding as it should, this could be an indication that your catalytic converter is malfunctioning. When a catalytic converter starts to fail, it restricts the exhaust flow which can lead to reduced engine power, resulting in decreased acceleration and even stalling.
Symptom 4: Dwindling fuel economy
When your catalytic converter begins to fail, you may notice that you’re filling up more often than usual or that your vehicle isn't travelling as far on a tank of gas as it used to. This is because a clogged converters restricts exhaust flow which makes it harder for engine compression and thus reduces fuel efficiency.
Symptom 5: Poor acceleration
In some cases, a faulty catalytic converter can cause your engine to hesitate when you try to accelerate or cause a noticeable drop in power when accelerating. This can be especially dangerous if you’re trying to merge onto the highway or maneuver around other vehicles on the road. You might also notice that your vehicle doesn’t reach its top speed as quickly as normal and may struggle to keep up with traffic flow at higher speeds.
Symptom 6: A smell of rotten eggs or sulfur from the exhaust
This smell often resembles rotten eggs or sulfur, and can be extremely off-putting. The catalytic converter is responsible for breaking down harmful pollutants that come out of your engine, so when it starts to fail, these pollutants will be released into the air instead. The sulfur compounds present in gasoline are especially prone to being broken down poorly by a failing catalytic converter, resulting in the distinctive rotten egg smell. Additionally, poor fuel burning caused by a bad catalytic converter may contribute to this odor as well.
Symptom 7: Dark exhaust smoke
Dark exhaust smoke is one of the most common symptoms that a car may need a catalytic converter replacement.
The catalytic converter is an important part of the vehicle’s emissions system, as it helps to convert harmful gases into harmless ones before they are released into the atmosphere. A bad catalytic converter can cause dark exhaust smoke due to faulty oxidation of hydrocarbons and sulfur dioxide. The resulting carbon buildup in the exhaust system can create thick, black smoke that appears when the engine accelerates or is revved up.
Symptom 8: Extreme heat coming from under the vehicle
A clogged catalytic converter may lead to a extreme heat coming from the underside of the car.
The reason why this happens is due to a lack of proper functioning of the catalytic converter. When it doesn't work properly, it will cause back pressure within the exhaust system which results in extreme temperatures increasing under the car. The increased levels of heat can then be felt through the floorboard and even outside as well.
It is important for drivers to pay attention if they feel rising heat coming from underneath their vehicles as this could indicate that there are issues with their catalytic converters.
Symptom 9: Odd Rattling Noises
When the catalytic converter is bad, it can cause all kinds of strange noises, one of which might be an odd rattling sound. This noise can be caused by several different problems with your catalytic converter.
One reason for this noise is that the catalyst material inside the catalytic converter has broken up and is now loose in the exhaust system. This rattling sound will become more pronounced as you accelerate your vehicle, especially on cold starts when other components expand and contract more rapidly due to changes in temperature. Another possible cause is if there’s too much back pressure building up in your exhaust system due to a blockage somewhere along its path.
Catalytic Converter Maintenance Tips
Keeping your car's catalytic converter in good condition is essential for optimal performance and reducing emissions. A well-maintained catalytic converter can help you save money on fuel costs and reduce the impact of your vehicle on the environment. Here are some tips to help you keep your catalytic converter running smoothly:
Follow your vehicle manufacturer's recommended maintenance schedule.
Use high-quality fuel and engine oil.
Avoid rough driving, such as rapid acceleration and hard braking.
Keep your vehicle's exhaust system in good condition.
Regularly inspect the catalytic converter for physical damage and signs of overheating.
Fix any engine problems immediately to prevent further damage to the catalytic converter.
Do not use fuel additives or aftermarket performance parts that can damage the converter.
Do not use leaded gasoline, which can permanently damage the converter.
Have a professional mechanic inspect and replace the catalytic converter if necessary.
Get a New Catalytic Converter at Affordable Price
Generally, a catalytic converter can last 10 years or longer. However, it should be replaced when you notice the above mentioning signs. Finding an affordable catalytic converter for your car can be a daunting task. With SuncentAuto, finding a suitable and affordable catalytic converter is no longer daunting.
You can find exactly what you need with our convenient search tool. All you have to do is enter your vehicle's make, model, and year into their search bar. SuncentAuto will provide you with a selection of compatible catalytic converters.
Here, you don't have to worry about quality or price. We offer the best deals on catalytic converters and free shipping for all orders! Get your new catalytic converter now!
