Skip the auto shop - Our mechanics make house calls

Q: Car won't start, then starts, then quits again

asked by on

When trying to start my car this morning, it was dead. All of the lights were working fine. I jump-started it and went on to work. 5 ½ hours later it started, with no problem. Then, around seven hours after having been parked, it was once again dead. The lights and all other things are still working well. Tomorrow, I should have the battery tested - or it might be the alternator. In your professional opinion, do you think it is the battery or alternator or something else?

Hello. It sounds more like a battery not accepting a charge for your 2009 Kia Rondo. Generally an alternator will illuminate the battery light in the dash to indicate no charging occurring, but a mechanic should be able to verify this. One last thing to consider if both the battery and charging system test fine is the possibility of a parasitic draw taking down the battery though it would have to be quite a draw to take down a battery in 7 hours. You could consult a mechanic, such as one form YourMechanic, to perform the testing before following through with a battery replacement.

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: The car shorted out after a repair

It is possible that the powertrain control module may have been damaged during the oil change at the time of the short. I would have the powertrain control module tested with a high tech scan tool if this option is...

Q: Clutch goes to floor and now car dies when putting it in hear

I'm going to assume your car dies because when you manage to get it into gear, you can't feather the clutch to get going. This would be normal in this situation. The reason your clutch is acting the way...

Q: gas gage dont work after battery unhooked

With your car I have seen the gas gauge go all the way around the gauge and get stuck on the other side of the stop from the bottom of the gas gauge. Easiest way to fix it is to...

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...
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.