Skip the auto shop - Our mechanics make house calls

Q: Car is misfiring, losign power and sputtering

asked by on

Hello. I'm having some troubles with my car misfiring. The first time of the day, like in the morning, the car would misfire but I would be able to start it. It would calm down. But, now it happens while I'm driving. The car loses power and sputters a lot. What should I chack first? Thank you in advance.

The first thing to check is the computer for any codes. If you are getting misfire codes like P030x, then you have a cylinder that is misfiring. The "x" is the cylinder that is misfiring. Also look for a bad coil, wire, or plug. If you need to help diagnosing your car’s misfiring issue, then get in touch with a mechanic, such as one from YourMechanic, to come and scan the computer and do a visual check of all the pertinent components.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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

Get a quote

What others are asking

Q: Cylinder 7 misfire in Ford F-150

A misfire code is a very common fault on your 2002 Ford F-150. The first step is to determine what the root cause is, from there it can be determined what needs to be replaced. Common causes are the spark...

Q: Bad gas mileage on the highway

There are many things that can cause the fuel mileage to go down or be lower than what others are getting. The most important thing is to not use performance parts like filters or sensors. These only increase the power...

Q: Bad gas mileage, high idling

Idle speed for your vehicle should be between 725 and 750 RPM. So, it is idling high. Common causes for this include vacuum leaks and a faulty idle air control (IAC) valve. Either of these issues could also affect fuel...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...