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

4.8/5

Number of Reviews

310

Rating Summary
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Travis

12 years of experience
348 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!

Duane

24 years of experience
389 reviews
Duane
24 years of experience
Cadillac SRX - Engine is misfiring - Poway, California
I thought my caddy was gonna be a big expensive problem for me. And then came DUANE. Not only was it a small problem but it was also not expensive. DUANE took care of the problem in his usual professional way. Words can't explain how happy i am.
Jaguar XF - Engine is misfiring - Fallbrook, California
Duane provided me with excellent service! He is clearly an experienced professional! His knowledge, experience, and pride in his work are clearly reflected in the quality of his work. He will be the only mechanic I request going forward. I am greatly satisfied with the service he provided me with and

Sean

16 years of experience
50 reviews
Sean
16 years of experience
Dodge Journey - Engine is misfiring - Fort Belvoir, Virginia
Great guy, very friendly and knowledgeable. Knew exactly what the problem was as soon as we popped the hood. I'll be using his services again, as well as recommending him to my friends!

Robert

39 years of experience
14 reviews
Robert
39 years of experience
Cadillac CTS - Engine is misfiring - Chandler, Arizona
HIGHLY RECOMMEND!!! Robert saved my a ton of $$$. He came out to diagnose an engine misfire issue that I was having and showed up early for the appointment and ready to work. He was very thorough in his diagnostics and he was able to pinpoint exactly what my issue was. Turns out it was something minor, every other mechanic had overlooked. He was able to save me on what everyone said was going to be a major repair bill. My vehicle is back on the road and it only cost me $89. I should have just called him first, I could have saved myself from a lot of headaches. For a very competitive price I was able to have a 5 star mechanic come to my home and fix my car on the spot. I am never going back to a traditional auto shop...this process was very convenient and affordable. Like I said HIGHLY RECOMMEND!!!

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