On Tuesday, May 29, 2018 at 12:57:51 PM UTC-5, Steve W. wrote:
> Ivan Vegvary wrote:
> > 2008 Kia Rondo, V6
> > Starts in an instant EXCEPT when at gas station for a fill up. Takes over 30 seconds of cranking, stalls 2-3 times and runs crappy for about one minute.
> > Very repeatable.
> > Is the gas cap part of the computer system?
> > Thanks for advice.
>
> Bad purge solenoid. It is in the engine compartment near the intake
> manifold and allows the engine to draw off the collected vapors from the
> charcoal canister. When they stick open the action of filling the gas
> tank drives the vapor up into the intake manifold and you end up with
> such a rich mixture that the engine won't start. Very common failure and
> symptom.
>
> --
> Steve W.

Youtube Kia Rio Purge Valve Replacement Procedure ...Somebody at kia-forums.com said those valves tend to stick partially open/whatever. Just as well to install a new one.