If your car is not running properly, your catalytic converter may be to blame. When this part is not working as designed, not only will you notice a reduction in fuel efficiency, you may also notice an increase in harmful emissions. No matter what the problem is, it needs to be fixed quickly or overall performance will be affected.

Your vehicle will no longer be converting pollutants to harmless gases. In most cases, this is not due to the part wearing out either. Overheating or external damage due to an impact with road debris are likely at fault. Here are some common catalytic converter problems that you may encounter.

*Improper information – A catalytic converter must have the proper air/fuel mixture if you are to receive maximum fuel efficiency. Oxygen sensors are used to monitor this mixture and change it if necessary. If your oxygen sensors become damaged or fouled, incorrect information will be provided and the air/fuel mixture may be off.

This will affect not only the operation of this part, but the overall efficiency of the vehicle. This is one of the common catalytic converter problems and can easily be detected with an engine scan. If your oxygen sensors are at fault, they will need to be replaced.

*Catalytic congestion – Over time, a catalytic converter may become clogged. There are a number of reasons for this. It may be that you are running burned oil, your converter may not be reaching proper operating temperature as you take frequent short trips or your fuel mixture may be too rich.

In addition, if your plugs are fouled or your spark plug wires come loose, your catalytic converter may become plugged. Another malfunction that may lead to this problem involves exhaust valves. Your mechanic will be able to determine which is in play as this is another of the common catalytic converter problems.

*Surface contamination – Exhaust gases contain contaminants. As these contaminants enter the catalytic converter, they may coat the interior surfaces which leads to a reduction in efficiency. Oil leaks also tend to leave deposits of phosphorus in this component. When this is the case, you will see blue exhaust smoke exiting your car. If white smoke is seen, silicon deposits created by engine coolant leaks are the culprit.

An emissions test is often used to detect a reduction in catalytic converter efficiency so ensure this type of test is done on a regular basis. Otherwise you may be consuming more fuel than is necessary which is nothing more than a waste of money.

*Physical damage – Catalytic converters are found on the underside of the vehicle. This makes them susceptible to damage while driving. Not only do you have to worry about road debris and other obstructions, the catalytic converters are also open to the elements. Ice and snow can lead to damage. The only way to avoid problems as a result of these is to drive as carefully as possible and have your catalytic converter checked if you suspect damage may have been done unintentionally.

With so many common catalytic converter problems to deal with, you may wonder how this part ever makes it very long. By taking proper care of your car and driving smartly, you can find a minor problem before it becomes a major repair. If you notice any reduction in fuel efficiency, it is best to have your car checked out immediately.

Strange noises and foul odors must be investigated and it never hurts to ask your mechanic to take a quick glance at this part when you take your vehicle in for any work. Be proactive in this respect. The cost of repairs to a catalytic converter can often be offset by an increase in fuel efficiency so don’t hesitate to have this work done in a timely manner.