Skip the auto shop - Our mechanics make house calls

Q: Car stalled while driving - 2006 Kia Optima

asked by on

I fuel my car and yes few drops did pour out due to over filling. I drove my car for 3/4th of a mile where it suddenly locked the steering wheel and engine shut down suddenly. I stepped out of the car locked and unlocked(I dont know why I did that) then turned on and it did but only for few seconds. Then I gave a minute break and I started then everything functioned as normal. But still the locking while I was driving is scary.

My car has 137000 miles.
My car has an automatic transmission.

Hi and thank you for writing in. Most likely what is happening here is that, by over filling the gas tank, you allowed gas to enter into the gas tank breather tube. As you start driving fuel is being drawn out of the gas tank. With the breather tube choked off by gas, this will not allow air back into the tank to equalize the pressure. Your electronic fuel pump is not strong enough to overcome the negative pressure and basically you are running out of gas. As soon as your engine dies the gas that was in the breather tube is allowed to enter the gas tank which clears the breather tube. At this point the gas tank pressure is back to equal and you will be able to start your engine because the fuel pump can supply gas once again. Best cure for this issue is to be extra careful to overfill your gas tank. If this problem continues while you have less then 3/4 of a tank a fuel system check will need to be perform a car stalling test to isolate what is causing the engine to shut down. If you would like to have this done, a qualified professional from YourMechanic can come to your car’s location to perform this service for you.

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: Rubbing noise coming from the front driver's side tire. What could be the problem?

The wheel hub bearing could be getting noisy or the scraping noise could be caused by the brake pad material. The most common cause of such noise is when the metallic material in the brake pad makes a scraping noise...

Q: Key won't turn and car won't start.

If the key will not turn in the ignition normally you can try to turn the steering wheel side to side quickly while simultaneously attempting to turn your key and that may sometimes allow the key to turn. If the...

Q: Van is not starting

This may potentially be related to a faulty starter relay. The starter relay directs power from the battery to the starter solenoid which then engages the starter when you turn the key. When this is not working properly, you may...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.