Everything to Know About Catalytic Converters

February 28, 2023

Undercarriage view of a car's exhaust system with catalytic converter, pipes, and heat shields. | Torque European Car Care

Catalytic converters are one of the most important components of a modern vehicle's exhaust system. They are designed to clean up harmful pollutants in the exhaust gases produced by a car engine, making them environmentally friendly. In this blog, we'll explain what catalytic converters are, how they work, and why they are so crucial to the health of our environment and our vehicles.

A catalytic converter is an exhaust device that is mounted in a vehicle's exhaust pipe, between the engine and the muffler. It contains a ceramic or metallic honeycomb-shaped substrate that is coated with catalysts like platinum, palladium, and rhodium. When the exhaust gases flow over this substrate, the catalysts trigger chemical reactions that convert harmful pollutants into less harmful emissions.

The primary pollutants that catalytic converters help to clean up are nitrogen oxides (NOx), hydrocarbons (HC), and carbon monoxide (CO). NOx is a major contributor to smog and air pollution, while HC and CO are both toxic and contribute to air pollution as well. By reducing the levels of these pollutants, catalytic converters help to reduce air pollution and protect the environment.

It's important to note that catalytic converters aren't maintenance-free. Over time, the catalysts can become clogged or worn out, reducing the converter's effectiveness. This can happen due to a variety of reasons, including:

  • Fuel additives: Certain fuel additives can reduce the effectiveness of catalytic converters by clogging the substrate.
  • Engine misfires: If an engine misfires, it can create too much unburned fuel, which can damage the catalytic converter.
  • Oil contamination: If engine oil leaks into the exhaust system, it can clog the converter, reducing its efficiency.

If your car's catalytic converter becomes damaged or clogged, you'll likely notice a decrease in performance, increased emissions and increased fuel consumption. You'll also see the "check engine" light illuminate on your dashboard. In this case, it's important to take your car to our auto repair shop for a professional diagnosis.

With proper maintenance and care, your catalytic converter will help ensure that your vehicle is running smoothly, cleanly, and efficiently for years to come. If you need catalytic converter replacement, please call or visit the local auto repair specialists at Torque European Car Care.

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