Q: Car stalls out if I fill the tank all the way

asked by on

Very strange problem with my 2006 Kia Optima. Every time I fill up the fuel tank (actually top it off) the car will stall the first time I start it after. The motor has just under 100,000 miles on it. I searched around for hours to find a mechanic shop in a gas station so I could show them the issue. They agreed that it was weird. Anyway, I need a proper diagnosis. What on earth is causing this?

Does the Check Engine light illuminate when the car stalls? If so, a mechanic will be able to trace the issue with a scan tool. That said, this concern is likely related to the On-board Refueling Vapor Recovery (ORVR) valve or the emissions systems charcoal canister. The ORVR valve is known to fail over time. The charcoal canister can become saturated if the fuel tank is “topped off” repeatedly. If either of these units fail, it would cause the concern that you describe. Armed with this knowledge, I would recommend having a certified mechanic, such as one from YourMechanic, perform a fuel system and emissions system inspection. One thing that you can check on your own is the sealing gasket on the fuel cap. Remove the cap and turn it over, so that you are looking at the rubber seal on the cap. If the seal is cracked, dry, or rotted, a new cap should be purchased and installed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Car stalls out if I fill the tank all the way

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: Where do i fill up the radiator on a H2 Hummer 2006

Coolant on your vehicle should be added to the reservoir that is located on the passenger side of the engine compartment. It will have a cap on top, that can be removed when the engine is cool, and allow for...

Q: How can I rule out a head gasket as a reason for my truck overheating?

You will need to do a pressure test on the cooling system to see if there is coolant leaking from the radiator or the head gasket. The other test is to do a compression test on all the cylinders and...

Q: Q: the truck turns over and over, but will not start

If the starter motor is turning the engine over rapidly, at sufficient RPM, but the engine does not catch and run, that means that there is an ignition, fuel, air induction, or mechanical fault in the engine that will have...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.