What Are the Dangers of a Vehicle With a Bad Exhaust System?

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Your car’s exhaust plays a vital role in several different things. It affects engine performance. It reduces noise while driving. It also protects you from potentially lethal carbon monoxide fumes. If your car’s exhaust has seen better days, there are several potential dangers that you might be facing.

The dangers of a bad exhaust system

  • Carbon Monoxide Poisoning: If your car’s exhaust is leaking badly enough, or in the right place, it’s very possible that carbon monoxide will enter your car. If the windows are rolled up, this can actually be lethal. Even with the windows down, it can make you feel very sick.

  • Low Fuel Economy: Your engine needs a working exhaust system to perform correctly. If your exhaust is leaking or otherwise damaged, you will experience reduced gas mileage.

  • Poor Performance: Exhaust system back-pressure is necessary for your engine to run right. If there’s a significant leak in the system somewhere, it reduces backpressure, and can negatively affect your engine’s performance. You might experience spitting and sputtering, a lack of power, or even stalling in a worst-case scenario.

  • Check Engine Light: If your exhaust system isn’t up to snuff, you can bet that your Check Engine Light will come on and stay on. While that might not be cause for concern right away, it means that you won’t be notified if something else goes wrong.

  • Emissions Testing: As a final note, you must have a working exhaust system in order to pass emissions testing. If your car doesn’t pass the emissions test, you won’t be able to legally drive it until the problem has been repaired.

As you can see, there are several potential dangers from a vehicle with a bad exhaust system. It’s not just about noise – it’s about reliable performance and protecting your health.


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Eladio

8 years of experience
128 reviews
Eladio
8 years of experience
Honda Civic - Brake Pads Replacement (Rear) - Greensboro, North Carolina
Eladio arrived at the scheduled time and was great to work with. He was very professional and I am very satisfied with his work. This was my first time using YourMechanic and I am very pleased with how easy and convenient this service has been from start to finish. Definitely would recommend.
Nissan Altima - Brake Pads Replacement (Front) - Greensboro, North Carolina
Eladio was on time, expedient, and very professional. Very pleased with provided service (brake shoes replacement).

Chris

13 years of experience
107 reviews
Chris
13 years of experience
Hyundai Sonata - Brake Pads Replacement (Front, Rear) - Port Richey, Florida
CHRIS IS THE BEST MECHANIC I HAVE EVER MEET IN MY LIFE. HE IS HONEST AND HE KNOWS HIS STUFF. VERY PROFESSIONAL AND KNOWLEDGEABLE. THANK YOU CHRIS!!!

Pardeep

19 years of experience
587 reviews
Pardeep
19 years of experience
Dodge Caravan - Brake Pads Replacement (Rear) - Fremont, California
Pradeep was early to my appointment and during his work he showed me that I didn’t need rear brake shoes saving me money.He cleaned and serviced the existing shoes and he also adjusted my parking brake cable. Great job. I will always use Your mechanic for any car repairs.

Oreste

12 years of experience
117 reviews
Oreste
12 years of experience
Dodge Avenger - Brake Pads Replacement (Front) - Miami, Florida
Orestes is very professional. He explained what was done to my vehicle and suggested upcoming maintenance needed. Great person

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