The catalytic converter is probably the newest mechanical component to be added to every new car in North America. The purpose of the converter is to convert carbon monoxide to carbon dioxide, a far less dangerous chemical. If your car manages to continue running, the failed converter will hamper the engine to the point that you can't drive the car until you have it replaced. The tricky thing about the catalytic converter, though, is that a hidden problem with its sensors can cause it to fail.

Each of these sensors, when malfunctioning, will inevitably lead to a completely busted catalytic converter. Fortunately, fixing or replacing these sensors is not only cheaper than similar work on the converter, but can actually be solved by one with the right tools and a careful hand at repairs. With the information you've learned here today, and a little more attention to the sounds and subtle movements of your engine, you can potentially avoid repairs costing thousands of dollars.

Replace the Oxygen Sensor

This device tells the engine how much fuel and air to mix, so that fuel isn't wasted. You can get a replacement sensor from your local auto parts store. All you would need is a pair of heat-shielding gloves, a set of deep sockets, a ratcheting wrench, and a torque wrench, and you replace the sensor on your own.

Clean the Mass Air Flow Sensor

This sensor measures the air's speed and how much air is entering the engine, in an effort to finely guide the ever changing circumstances of ideal air/fuel mixture. You'll know this sensor has failed when the vehicle idles very roughly or even stalls. You can carefully remove and clean this sensitive sensor with specialized cleaner, which will stop it from malfunctioning.

Watch Out For Check Engine Lights

Were it not for your check engine light, you might only realize your car needed service when something busts beyond repair. Thankfully, this simple warning helps you to get the problem fixed before any additional harm is done. While there are many severe problems that the check engine light won't detect, you will be alerted should any problem occur with any one among a dozen or more parts of the engine compartment. Some of these problems are more severe than others, but none of the check engine triggers should be ignored. For more help with auto problems, contact a company like American Transmission Center.