Showing articles & questions for topic
catalytic converters

Related articles

Symptoms of a Bad or Failing Catalytic Converter
Common signs include reduced engine performance, rattling sounds, and the Check Engine Light turning on.
How Long Does a Catalytic Converter Last?
The catalytic converter converts pollutants in the exhaust system into less toxic pollutants by using a redox reduction method. The catalytic converter is located on the exhaust system of your vehicle, and...
How Exhaust Systems Work
It all starts in the engine In order to understand how the exhaust of a vehicle works, there must be a basic understanding of the engine as a whole. The internal combustion engine in...
How to Install a Catalytic Converter
A catalytic converter is one of the most important emissions components of the modern gasoline engine. It is part of the vehicle’s exhaust system, and is responsible for keeping...
What Does the Catalytic Converter Warning Light Mean?
The catalytic converter warning light means the catalytic converter in your engine may not be working properly, possibly due to overheating.
What Does a Catalytic Converter Do?
The modern automotive exhaust system is much more advanced than what was available even just a couple of decades ago. After recognizing that the average automobile was one of the primary sources of global...

Related questions

I had the catalyst converter replaced last year. Now the Check Engine Light is on again for O2 sensor. What do I do?
You may want to have a professional inspect the catalytic converter. When the Check Engine Light comes on for this, it does not necessarily mean that the catalytic converter has failed. This may be related to many other things as...
Vehicle is jerking and engine is not performing at 100%
The catalytic converter may be the cause of all of these symptoms. If there are pieces of the catalytic converter that have broken off inside, they could periodically block the exhaust and cause the engine to bog down. This is...
Catalytic converter replacement
Hello. It's quite possible that there is no one at fault here. It may just be unfortunate timing. I'm assuming that you have had the codes read and that is why you have decided you need to replace the catalytic...
Will not accelarate over 20mph and has a P0430 code
Hello and thank you for contacting Your Mechanic. The code P0430 means that the catalyst system efficiency is below threshold on bank 2. This is in relation to the catalytic converter not functioning correctly, but this code will not make...
Recall for Catalytic Converter on my 2003 Nissan Sentra
Hello. On most vehicles the catalytic converter can usually be covered for the first 10 years or 100,000 miles. Once you surpass either of these, the converter will not be covered whether it is under warranty or recall. If you...
Loss of engine power when driving over 50 mph
Check for problem codes, even if the Check Engine Light is not illuminated right now. There are likely transient codes still set. This may be something simple like a fuel supply issue (fuel filter clogged, fuel pump relay contacts burned,...
Why does my '90 Chevy C1500 turn over but not start? I'm getting fuel and a spark.
Assuming the spark is adequate and fuel pressure is within specifications, an extremely worn out set of spark plugs may be the culprit. It could be a restricted exhaust system (i.e. a plugged catalytic converter) if you had a lack...
Your vehicle may have experienced a horribly clogged catalytic converter. These will usually hinder engine performance to a great degree and you may hear a blowout if the catalytic converter gets too hot and the materials inside start to melt....
Is there a smell which develops in a car when the catalytic converter starts to go bad?
Hi there. If there is a rotten egg or sulfur type of smell then most of the time this is caused by a failure in the catalytic converter. When these fail and become too hot they will smell like this....
Normally, when the headers start to glow, it is a sign that there is a restriction. Typically, the headers will not begin to glow until high rpm's are reached, which from a theoretical standpoint, are telling you that they are...
Scan vehicle Code P0430 Cataylic system efficiency below threshold bank 2
The code is meant to indicate your catalytic converter is not performing up to par with the EPA (environmental protection agency) standards. Your car uses the oxygen sensors to monitor the catalytic converter (cat) efficiency. There is an O2 sensor...
My catalytic converter is rattling and there is smoke coming from my car. Is the catalytic converter faulty?
It is possible the catalytic converter got hot enough to fail on the last trip you took before this started. No pressure from the exhaust is a good sign that the car can't breath. This may be because it cannot...
What kind of damage can a bad catalytic converter do to my vehicle?
A clogged catalytic converter will cause the performance of the engine to suffer. It will run rough, could begin to misfire or lose power, and the gas mileage will suffer. A clogged catalytic converter can also cause engine damage, and...
Performance issues when driving and idling, RPM dropping abruptly
The symptoms you are describing are almost always caused by a bad catalytic converter. When this fails it clogs the exhaust, which causes these problems to occur. Do a back pressure test on the exhaust first. If that is fine...
Can I drive my car with code po430 code
A P0430 code indicates the catalyst efficiency has fallen off. If there are no other codes indicating misfires and if the check engine light is not blinking, you should be OK to drive your car. If you have trouble scheduling...
Catalytic converter going bad. Can I prolong its life?
Unfortunately, there is not much that can be done to prolong the life of the catalytic converter as they are very expensive to manufacture, thus the high cost of replacement. In order for the converter to work effectively, there are...
Car chokes when accelerating and when at a stop
Hi there. Based on the events you have described, finding another mechanic would be recommended. Your vehicle choking could be the result of a bad fuel pressure regulator, but I would not recommend replacing anything else until the vehicle is...
missing catalytic converter.
A catalytic converter is a major component to your car's exhaust system. If this is truly missing, this would mean that someone would have had to have physically removed it which involves a fair amount of work as well as...
Good morning Allen, I need to have my 2009 Buick Enclave's catalytic converter replaced. The dealer quoted me $977. Is that a good
Hi. The price they quoted you at the dealership is not that bad but you could probably get a better price at midas or a local exhaust shop. By federal law your catalytic convertor has a 10 year warranty on...
My car sounds like a go cart upon acceleration and the Check Engine Light is on - possible problem with the catalytic converter
As you may know, the catalytic converter converts toxic unburnt fuel gases into less harmful gases that are released into the environment. When this is not working properly, these gases tend to back up in the exhaust system of your...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.

Ask a question