Is it Safe to Drive With a Loud Muffler?

Schedule Noise from engine or exhaust Inspection
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The muffler is part of your vehicle’s exhaust system. The exhaust system routes fumes away from the interior of the vehicle, and the muffler expels them into the atmosphere. The entire system helps your engine maintain optimum performance and reduces pollution. One of the biggest signs your muffler is not working properly, is that your vehicle will be extremely loud while it is running.

If you are noticing that the muffler has become louder than usual, there are some safety concerns. Here are some things to know about driving with a loud muffler:

  • If the muffler has a hole in it, carbon monoxide can leak into the vehicle. This gas can cause dizziness, nausea, and headaches. If you are exposed to carbon monoxide for a long period of time, eventually unconsciousness and death can occur. If the loud muffler is due to a hole, the vehicle is dangerous to drive and should be inspected by a mechanic right away.

  • Many cities have noise ordinances that include how loud mufflers can be, which includes defective mufflers. If the cause of a loud muffler is not a defect, it is just loud, it may not be as dangerous to drive, but you may get pulled over because of the noise.

  • Signs of a broken muffler include a clunking sound while the vehicle is running. It is possible that a broken piece of the muffler may have come off and is rattling in the exhaust system, which can cause the clunking sound. If you hear an odd sound, have a mechanic take a look at your vehicle.

  • Inspecting the muffler can show signs of wear and defects as well. Check the muffler for rust or holes, which will indicate a problem with a muffler. If you see a hole or rust, have a certified mechanic, such as one from YourMechanic, replace your muffler as soon as possible.

  • Another sign of a broken muffler is unusual exhaust smoke. Turn the vehicle on and if you see thick smoke, this may indicate your muffler is not working properly. This can be dangerous so contact a certified mechanic right away.

Driving with a loud muffler is potentially dangerous. If your muffler is loud because of a hole, rust, or other defect, carbon monoxide may be getting into the cabin of your vehicle. Carbon monoxide can be dangerous to you and your passengers. If the muffler is loud for other reasons, it should be noted that most cities have ordinances against loud mufflers, and an unidentified defect may be causing harm to your exhaust. In any case, it is advisable to have your vehicle inspected for safety if you notice any loud noises coming from the muffler or anywhere else in your car.


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Recent Noise from engine or exhaust Inspection reviews

Excellent Rating


YourMechanic Noise from engine or exhaust Inspection Service

Average Rating

4.7/5

Number of Reviews

249

Rating Summary
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Jeffrey

25 years of experience
839 reviews
Jeffrey
25 years of experience
Honda Odyssey - Noise from engine or exhaust - Charlotte, North Carolina
Jeffrey nailed it. Other evaluations did not seem correct but his insight led to the correct diagnosis and complete repair. Thank you Jeffrey. Definitely will request him again.
Honda Odyssey - Noise from engine or exhaust - Monroe, North Carolina
Jeff always goes above and beyond to make sure we are satisfied with his work. We are pleased to work with him.

Travis

11 years of experience
309 reviews
Travis
11 years of experience
Mini Cooper Countryman - Noise from engine or exhaust - Saint Paul, Minnesota
It’s always been a great experience. Travis sorted the noise and listened closely for a recurrence. Then we discussed his next visit in a month or two for a serpentine belt replacement.
Mazda 3 - Noise from engine or exhaust Inspection - Minneapolis, Minnesota
Experienced, knowledgeable, and helpful. I had one of those "my car makes a weird noise" issues, and although of course I couldn't get the thing to happen while we zipped up and down the highway, Travis was thoughtful as he took in the details of my explanation of what I'd been hearing. He came up with a few different possibilities, ruled out a bunch of other ones, and by the time the shakedown drive was done we landed on a likely scenario that would explain things. Opening up the hood and checking the condition of a few filters, fluids, and plugs, Travis found some evidence that made the diagnosis even more likely. Now, I have a much better sense of what may be going on, some specific next steps in the plan, and a solid quote for additional work that needs to be done anyway - and going through the same process with the local garage might have taken days, and cost ten times more.

Walter

44 years of experience
59 reviews
Walter
44 years of experience
Honda Odyssey - Noise from engine or exhaust - Glenpool, Oklahoma
He educated me on what I needed to do to take care of my car. He is knowledgeable and so helpful! He’s the best!

Jeremy

18 years of experience
295 reviews
Jeremy
18 years of experience
Volvo S60 - Noise from engine or exhaust - Boynton Beach, Florida
Jeremy G. was very skilled, professional and courteous. My regular/former mechanic was unable to diagnose the problem with noise coming from under the hood. Yesterday, when I was going to drop the car off for the day for the mechanic to check everything as he told me I must, he called in sick. I reviewed the top-ranked mechanics rated online and found YourMechanic. So glad I did! Jeremy G. came determined what the problem was, assured me I would not be charged until the problem was resolved. We made an appointment for today, Jeremy did the repair and showed me the burnt-out part from the car, which is now running smoothly and quietly! I checked the general cost for the same repair/parts replacement and YouMechanic's was comparative and with the bonus of the convenience factor, which is considerable. I would not hesitate to recommend Jeremy at YourMechanic's.

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