Skip the auto shop - Our mechanics make house calls

Q: Engine is not smooth and i’m worried it’ll die

asked by on

I've had minor issues here and there with my 2012 Chevy Malibu since I purchased it. The car has 40,000 miles on it now and it seems like the engine is running really rough. It just sounds wrong, especially when idling. I had a problem before with random warning lights popping up on the dashboard, and feel that I'm getting too accustomed to dealing with this car's “quirks”. Should I have it checked out?

Yes, you should get the vehicle checked as soon as possible. YourMechanic can do a diagnostic inspection since you’re past the basic warranty period. The rough running could be either an ignition, electrical, or a mechanical issue, and if neglected could cause other damage. Your problem sounds like misfiring cylinders. Knowing whether or not your check engine light is on now would assist YourMechanic in diagnosing the exact cause. You can contact YourMechanic to verify your concern, scan your systems for any codes, diagnose any codes received, and let you know how they can fix your rough running issue. There have been no recalls or technical bulletins for this issue. There have been other similar issues which turned out to be spark plugs misfiring. The only way to properly diagnose is to scan the engine for misfire codes P0300 through P0306 on 6 cylinder engines, and up to P0304 for 4 cylinder engines.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Engine tick and check engine light.

Hello, thanks for writing in. It is possible that you have a fuel injection issue, but that is not that common on this vehicle. Most of the time when this occurs with a ticking noise also it is due to...

Q: What does the maintenance required Warning Light mean?

The maintenance required Warning Light is located on the instrument panel. When this light illuminates, then the vehicle is due for schedule maintenance based on the miles that have been driven since the last maintenance. Tip Like all warning lights,...

Q: Is it worth replacing a busted radiator

If you can get more for the car as a trade in, after you replace the radiator, than what a junk yard will give you for junking it, then I'd recommend fixing or replacing the radiator and use it as...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.