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Sounds Like a Hot Rod (Noisy Exhaust System)

Posted September 26, 2021 8:07 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.


AutoSurgeonInc
1820 E Kalamazoo St
Lansing, Michigan 48912
517-374-8940



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    Just a word of thanks for the top notch done to Wema's Carolla and for the thoughtful communication with our Tanzanian exchange student. Not only did you fix her car, but also handled arranging towing, all in a narrow window of time. Wema is delighted to have her car back, running better than ever. Couldn't be more happy with your service!
    , 01/05/2021

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    My son limped his vehicle into Auto Surgeon's parking lot . The vehicle is on its last leg and we just needed to get it up and running for a few more weeks til my son graduates. The proper repairs were out of the budget so Bill came up with a solution that made sense for this vehicle, Bill didn't have to adapt for us but he did, and the price was more than fair. Don't hesitate to call Auto Surgeon for any repair.
    , 12/04/2020

  • I have passed this place on the bus every day for 6 years and have always gotten a smile out of their sign out front having such nice little positive messages. So when I finally got a car and needed my brakes done, they were my first choice. Not only were they incredibly friendly and professional, they identified what I thought was a minor inconvenience and explained how it could be a problem down the road (pun very much intended) while fixing it for me. I will absolutely be coming back for anything I need done in the future!
    , 10/09/2020

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    Bill earns a strong recommendation for great customer service and for the excellent repair he did on my car. For all future car needs, Bill will be my first call.

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    My daughter brought her GMC in for a noise in the suspension and a air bag issue- Bill and his staff did a great job in diagnosing and repairing the vehicle with keeping us updated on the process. Thank You

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    My husband has taken his car to Auto Surgeon for many years and has nothing but praise for their expertise and customer service. We both trust that whatever the problem, we're in good hands with Bill and his team. Today it was my car's turn to need repairs. Within 90 minutes of dropping it off, they contacted me with a diagnosis and an estimate. By early afternoon, my car was ready. First-rate experience, start to finish. No one wants car problems, but if you have them, this is the place to go.