After I fill up with fuel, 03 Kia Optima doesn't start, seems like no fuel to engine

Yes, you are over-filling the tank, choking the evaporative emissions system, essentially choking the system so it cannot breathe through the evaporative canister. Choked. Cannot breathe. not starting for environmental reasons? quite surprised your check engine light isn't flashing and alarms screaming at ya~

Next time, turn the key to "On" but don't start the car. Wait a couple of seconds to let the fuel pump prime the fuel rail. Start the car as you normally would. -- It could be that when you remove the gas cap, you lose the pressure in the system. If it continues, have the fuel pressure regulator checked out.

You gotta stop at the first click...I know know this hard to do, you just want every last drop of capability and an even number on the pump~

It could be over filling, Judge. There have been codes reported about the evap system. Strange that it doesn't happen to all cars because everyone crams extra gas to bring the cost up to a round number. Doesn't make sense unless you're paying cash.

oh, the crowd I mix with...that was santoni_the_great pipin' up as I was answering the question, he has no credit cards~

I have a 2004 Kia Optima that I just bought used less than two months ago every single time I've gone to fill up my tank I have come to the same issue. I have always used credit if ant when I do pay in cash I do not believe in topping off as it just does not do anything for me. I would take the car into the service center to get checked out if not for the fear of an overpriced charge for labor and parts As I am a woman. There is no check engine light either and there is also no alarm going off will let you know if I find anything else out though.

Just had the same problem on a 2004 Kia Optima 2.6 - it was the solenoid purge valve. Easy to replace $16 at carparts.com part #REPV381001 hope this helps.

My 2014 optima is doing the same thing after I fill it up. This started happening after they replaced my recalled engine. They said the engine was a refurbished one. So I have to pump the gas pedal and then it will start. Of course I took it to the dealership, drove with a mechanic to the gas station to replicate the problem, and the car started on the first try, so they could not diagnose the problem. I never top off, but maybe I’ll try to put in less gas next time to see if that helps

2002 KIA OPTIMA WONT START AFTER REFUELING

Change the purge valve it will fix the issue

We fix these all the time. It;s usually the Purge Solenoid or the vent solenoid. SInce tanks are no longer vented this happens frequently

Cheers , Thanks for your sharing information ℹ️ this issues could be the same as mine car 2008 Kia spectra 5 sx. Am getting a new one of fuel vapor vent solenoid purge value and evaporate purge value to either

Cheers , Thanks for your sharing information ℹ️ this issues could be the same as mine car 2008 Kia spectra 5 sx. Am getting a new one of fuel vapor vent solenoid purge value and evaporate purge value to either.. the car flies over 366,478 high mileages in odometer reading.. ... whew