Your car’s catalytic converter may not be something you think about too often, but it plays a critical role in ensuring clean air and optimal performance for your vehicle. As an auto repair customer, it’s essential to understand what a catalytic converter is, how it works, and when it may need to be replaced.
What is a Catalytic Converter?
The catalytic converter is a component of your car’s exhaust system designed to reduce the emissions released from the engine. It converts harmful pollutants in the exhaust gas, such as carbon monoxide, nitrogen oxides, and hydrocarbons, into less toxic substances, such as oxygen, carbon dioxide, and water vapor. Catalytic converters use a catalyst, typically made of platinum, palladium, or rhodium, to promote a chemical reaction that breaks down the pollutants.
How Does it Work?
The catalytic converter works in three stages: reduction, oxidation, and storage. The converter reduces nitrogen oxides into nitrogen and oxygen during the reduction stage. In the oxidation stage, it oxidizes carbon monoxide into carbon dioxide and unburnt hydrocarbons. The storage stage captures pollutants as they pass through the converter, releasing them into the atmosphere.
When Does it Need to be Replaced?
Catalytic converters last for a long time with proper maintenance. However, they can fail for various reasons, such as damage to the exhaust system, excessive oil consumption, or exposure to chemicals. If your vehicle’s catalytic converter fails, you may experience reduced performance, decreased fuel efficiency, or the check engine light turning on. A failing catalytic converter can also cause a vehicle to fail an emissions test.
As an auto repair customer, understanding your car’s catalytic converter and its critical role in running your vehicle efficiently is essential. If you suspect an issue with your catalytic converter, have a qualified mechanic evaluate it immediately. By performing regular maintenance and addressing issues promptly, you can ensure your catalytic converter continues to function correctly and keep your car running smoothly for years.
