Skip the auto shop - Our mechanics make house calls

Q: Check Engine light, misfiring , and hard to steer

asked by on

The Check Engine light is on, the car is misfiring, and it is hard to steer. I'm not sure, but it might need a tune-up.

The first thing I would recommend is to have your vehicle scanned for trouble codes with an OBD2 scanner by a qualified technician who will be able to understand the code that is retrieved. If the code does come up as a misfire, I would recommend having an ignition test performed on the cylinder in question. The ignition tester will be placed between the coil and the spark plug on that cylinder to determine if that cylinder is firing. If it is not firing the ignition coil is bad. If it is firing, the spark plug may have an issue. I would recommend having all spark plugs replaced in this case.

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: Head gaskets leaking

These engines, if turbocharged, can have various problems; the system over-boosted and blew the head gaskets, or the engine overheated and warped the heads, causing the gaskets to leak. Either way, this may have damaged the heads, so the repair...

Q: Grinding and vibration after brake work done

Hello. Thank you for writing in about your 2009 Toyota Venza. From what you are describing, I would conclude that the problem you are hearing is a result of bad rotors or brake pads. Since you just had new rotors...

Q: No code for misfire?

Hi there. It hard to determine, whether the misfire codes and poorly running are related to the work that has been done. The question would be, whether you trust the repair facility enough to take your vehicle back? If the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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.