Where is that and can I bypass it or do I have to replace it. I am driving 13 hours today to fix it for him and not sure if we can get the part
November, 23, 2010 AT 8:55 PM
Tried to get a PIC but KIA provides no info. But valve will be one of two places either on top of tank or in a hose that goes from tank along filler tube
November, 23, 2010 AT 9:09 PM
Can I bypass it whein I find it?
November, 23, 2010 AT 9:13 PM
Yes maybe able to clean vapor and moisture build a gunk up valve if notreplace with a hose do npot plug needs to allow air to escape as fuel goes in
November, 23, 2010 AT 9:20 PM
I will give it a try thanks
November, 23, 2010 AT 10:00 PM
Good Luck on trip this may sound flaky but if vale can't be found slide a 1/4 tube down filler neck to expel air
November, 23, 2010 AT 10:14 PM
August, 21, 2011 AT 8:41 PM
My daughter has an 02 Optima that had the same problem. Ran several hours of troubleshooting including removing and checking the cannister, which was fine. I finally found a 1-way check valve that was installed backwards (at the factory). As soon as I disconnected the valve, the pressure instantly released. We reversed it and the car took fuel normally. The valve has the flow arrow molded on it. It should point toward the fill cap, not to the tank.