Exception in rendering!

Message: window is not defined

ReferenceError: window is not defined
    at new c (/tmp/execjs20161209-86798-1ml61r1js:136:3912)
    at m.mountComponent (/tmp/execjs20161209-86798-1ml61r1js:47:15602)
    at /tmp/execjs20161209-86798-1ml61r1js:49:31860
    at a.r.perform (/tmp/execjs20161209-86798-1ml61r1js:47:12503)
    at Object.a [as renderToString] (/tmp/execjs20161209-86798-1ml61r1js:49:31821)
    at r (/tmp/execjs20161209-86798-1ml61r1js:50:21164)
    at Object.S.ReactOnRails.serverRenderReactComponent (/tmp/execjs20161209-86798-1ml61r1js:32:6073)
    at eval (eval at <anonymous> (/tmp/execjs20161209-86798-1ml61r1js:173:8), <anonymous>:10:23)
    at eval (eval at <anonymous> (/tmp/execjs20161209-86798-1ml61r1js:173:8), <anonymous>:17:3)
    at /tmp/execjs20161209-86798-1ml61r1js:173:8

How Does a Muffler Work?

muffler

Your car has a muffler for a very good reason. If it didn’t, the sound of your exhaust would be very loud. A muffler, well, muffles that sound. It does this in a simple yet ingenious way. Of course, no muffler lasts forever, and yours will eventually succumb to heat, exposure, and deterioration. It will need to be replaced at some point.

How the muffler works

To say that a muffler muffles explains how this automotive component does without actually telling you very much at all. It’s more about how it muffles sound. The inside of your muffler isn’t empty – it’s actually filled with tubes, channels, and holes. They’re arranged in such a way that sound is directed through the system, losing energy as it travels.

Of course, that’s an over-simplification. There’s actually a lot of technology embodied in the humble automobile muffler. The interior of the muffler is designed not to dampen sound, but to combine sound waves and make them cancel one another out. To achieve this, the tubes, holes and channels inside must be perfectly aligned or the sound waves will simply bounce past one another, which wouldn’t reduce the engine noise at all.

There are four sections in your muffler. The inlet is the part that attaches to the rest of the exhaust system, and where exhaust gas and sound enters. The resonator chamber is where a cancellation sound wave is created. Then there’s the second section, which is where you’ll find two perforated tubes that further cancel sound. Finally, there’s the outlet, which emits both the little bit of sound remaining, as well as exhaust gas.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Post a question and get free advice from our certified mechanics.

ASK A QUESTION

More related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Find the Keyless Code on a Ford Explorer or Mercury Mountaineer
Many Ford Explorers and Mercury Mountaineers were manufactured with an option known as the Ford keyless entry keypad. Some models refer to it as SecuriCode as well. It...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...


Related questions

Q: Can a bad muffler cause a smog test to fail?

Hello. You need to see why the last smog failure was for. If the failure was excessive O2 in the exhaust test, then it could be the muffler. If it is for high HC or CO then it may be...

Q: My brother is wanting to buy a jeep that needs new headers is that the same as head gasket and will it be pricey

Hello there, the headers are also know as the exhaust manifold on a 1999 Jeep Cherokee. When headers need replaced it is usually due to exhaust leaks, and broken exhaust studs. While this is a bigger job, it is not...

Q: Muffler off

A muffler falling off of a vehicle is usually the result of the hardware that keeps it fastened to the exhaust system failing or the muffler being rusted out near the flange that is bolted to the rest of the...