The muffler is a critical part of your car’s exhaust system that reduces engine noise and helps route exhaust gas out of the vehicle.

A typical internal combustion engine produces power through hundreds of explosions each minute, making a lot of noise. Thanks to the muffler, you shouldn’t hear them while driving.

But a muffler wears over time, primarily because it’s exposed to the elements underneath the car. Potholes, road debris, speed bumps, and road salt from snow and ice can damage or cause corrosion on exhaust components, including the muffler.

Your muffler might have an issue if you hear a rattling noise while the car runs. Here’s a look at common signs and symptoms of a faulty muffler that you should not ignore.

How Does a Muffler Work?

A muffler dampens noise from the engine

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