How Exhaust System Components Work Together

How Exhaust System Components Work Together

CBAC MufflerKeeping your exhaust system in good working condition is vital for fuel mileage, the environment and your safety. Your car’s exhaust system carries away the gasses created when the fuel and air are burned in the combustion chamber. As most people know, these gasses are very harmful to both humans and the environment.

To help drivers understand this system better, the ASE-certified technicians at Christian Brothers Automotive in Granbury, Texas are going to explain the components of your vehicle’s exhaust system.

Exhaust Manifold

The exhaust manifold connects to the cylinder head and takes each cylinder’s exhaust, collecting it into one pipe. The size of your car’s exhaust manifold will depend on the number of cylinders your engine has.

Oxygen Sensor

All modern vehicles have at least two oxygen sensors (O2 sensors). Just as the name says, it senses how much oxygen is in your exhaust and sends that information to your car’s computer. From there, the computer can then add or subtract fuel to achieve maximum fuel economy.

The first O2 sensor was used by Volvo in the late 1970’s. Due to federal emission laws in 1981, oxygen sensors became virtually mandatory in all vehicles.

Catalytic Converter

This vital part of your exhaust system converts harmful carbon monoxide and hydrocarbons into water vapor and carbon dioxide. Some catalytic converters also reduce harmful nitrogen oxides.


The muffler may not seem essential to your car’s exhaust system, but all of your neighbors are happy you have it. That’s because the one thing that keeps your car running quietly is the muffler. Remember, the combustion process is basically a series of small explosions that create a lot of noise.

Your car’s exhaust system is immensely important. Frequent checks of your exhaust system are essential to ensure the safety of you and your family. Put your faith in the hands of the friendly auto repair experts at Christian Brothers Automotive in Granbury, TX and schedule your exhaust system service today.