Q: Engine misfiring.

asked by on January 13, 2016

The Check Engine light is on. The engine is misfiring.

Check Engine Light is on Inspection $94.99 - $114.99 Get a Quote

A misfire can be caused by a lot of things, from a worn spark plug to an internal engine problem. The first step is to retrieve the diagnostic codes associated with the check engine light. These codes will provide a starting point for the diagnostic procedure. I suggest you have a professional technician, such as one from YourMechanic, diagnose and repair your vehicle.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Car window won't close
Hi there. If the window went down and will not come back up, then either the window motor has failed or the switch is bad. Most of the time the problem is in the window motor itself. It is much...
Car chugs & dies when gas gauge gets to 1/4 full
The fuel sending unit is not accurate and is empty at 1/4 of a tank, or you have a fuel pump (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-pump) that has a faulty bottom screen which has come off and sucks air below a 1/4 tank. A...
car turning off while driving but starts right back up
Most commonly when the car stalls while driving, but starts right up after, the cause is an intermittently failing crankshaft position sensor or camshaft position sensor. The first step to diagnosing this problem however, would be to scan the engine...
Wipers are not working
Hi there: There are several individual components that must all work together in order to correctly activate the windshield wipers. However, the most common cause of the issues you're describing is a bad or failing windshield wiper switch (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-windshield-wiper-switch). It...
Rough idle when stopping or at complete stop.
Shaking or vibration (https://www.yourmechanic.com/services/engine-is-shaking-pulsating-or-vibrating-inspection) may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) may cause the engine idle to drop below...
my 2012 ford fusion today the wrench sysbol came on saying throttle control/transmission fault detected why?
Hello Mr. Donald, thank you for writing in. The wrench is another form of a check engine light. When the computer detects there is something wrong (as it is constantly running tests) it will set a "diagnostic troubleshooting code" that...
Can a steering wheel lock up because there is a problem with the battery or alternator
Hello Sharon, thanks for writing in. The power steering can and absolutely will go out if the alternator or battery fails while driving. Lets break it down. The alternator is powered off of the engine, and it then supplies the...
I badly need a engine mount but I'm trying to order one online but it's asking me which one I have a 2003 Nissan Sentra 1.8 gaze i
Hello, thank you for writing in. The engine will have several mounts. You need to determine if you have to replace all of them, or if you are just replacing one. Most of the time if one is going out,...
gas coming out of throttle body
Hi there. This is going to probably sound like an obvious reply, but without knowing exactly where on the throttle body the leak is coming from, it's hard to tell you what might be the source and what repairs are...

Related articles

How Long Does an Engine Control Module (ECM) Last?
As technology continues to advance and move forward, so does the way our vehicles operate and run. It seems more and...
P2101 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit Range/Performance
P2101 trouble code definition Throttle Actuator Control Motor Circuit Range/Performance What the P2101 code means P2101 is an OBD-II generic code for...
P0311 OBD-II Trouble Code: Cylinder 11 Misfire Detected
P0311 means that the powertrain control module (PCM) detects a misfire in cylinder 11, often due to a faulty spark plug or clogged fuel injector.