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AUTONET TV

Sounds Like a Hot Rod (Noisy Exhaust System)

Posted July 4, 2021 11:44 AM

Driving along, your exhaust system's rumbling so loud that people turn and stare at you pass by.  You're wondering when the police are going to pull you over for illegal noise.

Your mind immediately thinks, aha! A broken muffler. 

Well, your exhaust system is composed of many more parts than just a muffler. 

Your engine makes power because of thousands of tiny explosions from detonating fuel.  Those explosions make a racket, so engineers came up with a system that acoustically dampens that sound in addition to getting rid of harmful exhaust.

In the engine is the exhaust manifold that looks like several pipes that join up into one pipe.  It directs exhaust to the catalytic converter. The catalytic converter converts harmful gases into less harmful gases using certain chemical reactions.  Then comes the muffler that has baffles inside to quiet the sounds of your engine noise.  Finally: the tailpipe.

All of those pipes and parts are joined together by clamps and held up by brackets, and they ride over some pretty bumpy roads.  They are also exposed to the elements, like salt, water, rocks and grit.  Chances are that one of those clamps or brackets has been weakened by corrosion.  When you hit a bump, bingo! The crack widens into a gap and there's a spot for the engine noise to come roaring out instead of being directed into the muffler's quieting chambers.

You might be surprised to know that the exhaust system can rust from inside out.  How? Moisture is one component of exhaust, and moisture on the inside can do the same kind of damage as moisture from the outside. 

It's a good idea to have your exhaust system looked at regularly by a technician.  He or she can evaluate the condition of the metal and recommend when it might be time to replace parts before they break.

Then you'll have a decision to make.  Newer exhaust systems are made out of stainless steel that is much less prone to corrosion issues.  Others are made of aluminized steel that also fights rust.  You've probably already guessed that they can cost more, but the extra price up front may give you an exhaust system that will last much longer. 

Sure, with a repaired exhaust system, you won't have quite the head-turning vehicle you once had.  You'll just have to live with all the quiet.


Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400



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What People Say About Us

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    , 03/27/2024

    Quick service, I highly recommend.

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    , 03/21/2024

    The staff was very honest and transparent. They were very professional and helpful and I would definitely trust them with my vehicle again.

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    , 03/14/2024

    Been using Hills Auto for quite some time now, it’s close and convenient for me. I’m big on small business support, never had any trouble, they aways meet my high expectations. Employees here make you feel at home, some of the best personalities in the automotive field I’ve ever experienced. They are precise, accountable, strive at completing the tasks requested in a timely professional manner.

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    , 02/29/2024

    The best experience I’ve had with getting auto work done. Customer service and communication is great and pricing is honest. Super friendly and will be recommending to everyone

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    , 02/28/2024

    everyone is friendly and helpful. Work completed as promised.

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    , 02/24/2024

    Excellent service, Affordable prices and high Quality Customer service! Leave the dealer behind with confidence and visit HILL’S AUTO!

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