where is purge valve located? on 2004 Kia Sorento

My car clogs up when refueling. (Gasoline returns back no matter how slow I pump fuel into the tank.

Thanks for any help

Asked by for the 2004 Kia Sorento
Not sure how far back their information goes back,Kia as a car manufacturer put a lot of great technical information and work shop manuals on line for free for Kia owners.
There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
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Sounds more like the fuel tank fill vent valve. Here is a diagram for you If the air is not displaced as it should be, it just burps it way up the filler neck till you see it.