Is it Safe to Drive With a Misfiring Engine? | YourMechanic Advice

Is it Safe to Drive With a Misfiring Engine?

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Repairing a misfiring engine can be simple or complicated, depending on the reason it is misfiring. The most common causes of engine misfires are: worn spark plugs, weak fuel injector, vacuum leak, worn valve seals, carbon tracking, and no voltage at the coil. Misfiring engines should be looked at as soon as possible, as the problem can worsen over time and damage internal components of the vehicle. There are a number of reasons why a misfiring engine may be unsafe for driving.

Here are some signs and symptoms to pay attention to if you're concerned about a misfiring engine:

  • While driving, you may be able to hear one or more misfiring cylinders in your engine. A popping and sneezing sound is one of the common sounds of a misfiring cylinder. Furthermore, backfiring is another sound of a misfiring engine. If you experience any of these sounds, have a mechanic inspect the engine as soon as possible.

  • Along with making a loud noise, a misfiring engine also has a particular smell. The strongest smell you will notice is gas, but it will be accompanied by the smell of coolant, steam, or engine oil. These are signs that you have a serious problem such as damaged cylinder walls, which can cause a misfiring engine.

  • A loss of power is another sign of a misfiring engine. The loss of power is experienced by vibration in the vehicle, which can cause damage. The internal parts of the engine rotate unevenly, causing increased wear on them. If you notice vibration in the vehicle that varies with the RPM of the engine, this may be a sign your you have a misfiring engine.

  • A misfiring engine can also produce clouds of black exhaust. If you notice the exhaust of your vehicle has changed in appearance or it has a blue tinge, you need to get your vehicle to a mechanic as soon as possible. This means there is an internal problem in your engine that needs to be fixed.

Driving with a misfiring engine may not be dangerous right away, but over time it will wear on your engine and you can potentially damage the vehicle. If you lose power while driving on a busy road, this is a safety hazard. If you notice any of the signs or symptoms of a misfiring engine, get them checked out by a professional as soon as possible. This will prolong the vehicle of your life and keep you safe while driving.


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Recent Engine is misfiring Inspection reviews

Excellent Rating


YourMechanic Engine is misfiring Inspection Service

Average Rating

4.9/5

Number of Reviews

334

Rating Summary
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Jeremy

19 years of experience
394 reviews
Jeremy
19 years of experience
Cadillac CTS - Engine is misfiring - West Palm Beach, Florida
Unfortunately Jeremy had to deliver the news that my car was beyond repair. But he was professional about it and checked if there was any possible way to fix it affordably. He seem honestly distressed telling me something that I already expected.
Honda Pilot - Engine is misfiring - West Palm Beach, Florida
Very thorough and identified the problem in my 2007 Honda Pilot with almost 260,000 miles. He was on time, worked quickly and found the problem. No overselling.

Travis

12 years of experience
426 reviews
Travis
12 years of experience
Oldsmobile Alero - Engine is misfiring - Saint Paul, Minnesota
Travis allowed me to watch the trouble-shooting and resolve of my Alero. He was totally honest, forthright, and completed the repair within two hours. Travis was my second estimate and, comparatively speaking, wins the medal of honor! Thank you, Travis!
Ford E-350 Super Duty - Engine is misfiring Inspection - Saint Paul, Minnesota
Travis was a great diagnostician and also wise enough to know when not to do something he wasn't equipped for. I feel better talking to my regular mechanic now that I know what the problem is and how much I can expect it to cost. Will call Travis again when the need arises!

Luis

14 years of experience
101 reviews
Luis
14 years of experience
Dodge Charger - Engine is misfiring - Las Vegas, Nevada
Luis was very knowledgeable and truthful. Didn’t recommend any service that wasn’t. The truth goes along way with a mechanic and he definitely has that.

Chuy

13 years of experience
202 reviews
Chuy
13 years of experience
Mazda 6 - Engine is misfiring Inspection - Chicago, Illinois
Chuy was polite and personable. I really appreciated how he diagnosed the problem , suggested the quality of part that I should purchase and completed the repair. I was dreading the worst case scenario but he assured me that was not the case. I give Chuy the highest recommendation!

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