Muffler Repair

What is a muffler and how does it work?

Mufflers are responsible for muffling the loud noises your engine produces while keeping your vehicle running. Because engines produce a lot of power, several thousand combustions and pulsations occur every minute and without a properly functioning muffler, your car would be making a lot of excess noise. A muffler is a cylindrical component that is attached to your vehicle’s exhaust pipe to filter out loud noises.

At first glance, a muffler looks like a simple set of tubes with holes in them. However, these tubes and chambers are tuned like a musical instrument that are designed to reflect the sound waves produced by the engine in a way that they cancel themselves out. Sound is a pressure wave formed from pulses of alternating high and low air pressure that make their way to our ears at the speed of sound. How we perceive sound depends on the sound wave frequency (which determines the pitch of the sound) and the air pressure level (which determines how loud the sound is). However, if two sound waves are out of pace with one another, they cancel each other out. This concept is called constructive interference; when one wave is at its maximum pressure and another is at its minimum pressure, they won’t produce any sound at all when these waves hit your eardrums. 

How do I know if my car needs a muffler repair?

The following are signs that show problems with your vehicle’s muffler:

  • Backfire from the engine: Your car’s muffler is part of the vehicle’s exhaust system. The exhaust of the car goes through the exhaust valve chamber inside the cylinder head, then through the exhaust headers, which are inside the exhaust pipes, catalytic converter and then in the muffler. It exits from the exhaust pipe. 
  • Unbearable noises from the exhaust system: If there is a hole inside your muffler, it will not function properly and you will hear very loud noises coming from your vehicle.
  • Condensation inside the exhaust system: When the exhaust system cools down, the moisture in the air condenses inside the exhaust system and the muffler. Overtime, the moisture sits there and slowly eats away at the exhaust pipe and the shell of the muffler. If you start to notice excess condensation in your exhaust system, this means that your muffler is starting to wear out. 

Your Trusted Shop for Muffler Repair

We at SJM AutoWerks in Lake in the Hills are experts in all things auto repair. We’ve been fixing cars since 2016 and our technicians have decades of combined experience. Here are some reasons you should choose SJM AutoWerks in Lake in the Hills:

  • We are top rated on Facebook, Yelp, and RepairPal.
  • We offer free estimates and quotes.
  • We support all first responders.
  • We work to give our customers the best auto repair experience as we can, every time.
  • We are a family-owned business and are bilingual in English and Spanish.

To schedule an appointment with SJM AutoWerks in Lake in the Hills, give us a call at 815-477-9735 or schedule an appointment online.

For honest and efficient engine repairs in Lake in the Hills,, IL, turn to the capable team at SJM AutoWerks. “Life's too short to drive boring cars.”

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