Fuel filling problems

Tiny
DEBACCOS
  • MEMBER
  • 2001 KIA OPTIMA
  • 6 CYL
When you go to put gas in it it spills out the filler neck, it take twenty minutes to put in five dollars of gas. I have tried to stick a wire and hose down the tank with no success.
Tuesday, November 23rd, 2010 AT 8:36 PM

9 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Vent valve faulty trapping air in tank.
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Tuesday, November 23rd, 2010 AT 8:41 PM
Tiny
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  • 8 POSTS
Where is that and can I bypass it or do I have to replace it? I am driving thirteen hours today to fix it for him and not sure if we can get the part.
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Tuesday, November 23rd, 2010 AT 8:43 PM
Tiny
DOCFIXIT
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Tried to get a picture, but KIA provides no information. But valve will be one of two places either on top of tank or in a hose that goes from tank along filler tube.
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Tuesday, November 23rd, 2010 AT 8:55 PM
Tiny
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Can I bypass it whein I find it?
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Tuesday, November 23rd, 2010 AT 9:09 PM
Tiny
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Yes, maybe able to clean vapor and moisture build a gunk up valve if not replace with a hose do not plug needs to allow air to escape as fuel goes in.
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Tuesday, November 23rd, 2010 AT 9:13 PM
Tiny
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I will give it a try thanks.
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Tuesday, November 23rd, 2010 AT 9:20 PM
Tiny
DOCFIXIT
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Good Luck on trip. This may sound flaky but if vale cannot be found slide a quarter tube down filler neck to expel air.
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Tuesday, November 23rd, 2010 AT 10:00 PM
Tiny
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Great idea!
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Tuesday, November 23rd, 2010 AT 10:14 PM
Tiny
DB
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My daughter has an 2002 Optima that had the same problem. Ran several hours of troubleshooting including removing and checking the canister, which was fine. I finally found a one 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.
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Sunday, August 21st, 2011 AT 8:41 PM

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