Question about 2004 Kia Optima

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2004 optima wont stay running after fillup

Hello,
My 2004 Optima has 68,000 mile on it and it wont stay running after fillup. I have to push the gas to star it and rev the engine for a couple of minutes and then it is fine! As soon as I drive eveything is fine even if I only drive a little and shut of the car, it will start right up! It only does it when I put gas in it! I have replaced the gas cap and it made no difference. Please Help!!!

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  • 3 more comments 
  • BuckeyeBabe Oct 27, 2008

    I am having the same problem; this just started for me two weeks ago. I have just over 63,000 miles and have had two mechanics run diagnostic and tell me they can't find anything wrong.

  • Anonymous Oct 31, 2008

    My problem is basically the same problem for my 2004 Optima wicth only has 30k miles. It started 10 days ago after I filled up. The car would start then die. Pushed the gas pedal, restarted and had to rev the engine for a minute before it was able to idle on its own. Since then its happened two more times over a ten day period. Otherwise the car starts,idles and drives without a problem.

  • Barry B
    Barry B Oct 21, 2013

    I have a 2010 kia optima. Had same problem except it didn't occur after i put gas in it. Had it towed to the dealership and they determined it was the exhaust oil control valve. After replacing it, the car runs fine.

  • Barry B
    Barry B Oct 21, 2013

    I had the same problem except it didn't occur after a fill up. Towed to the dealership and they determined it was the exhaust oil control valve. they replaced it and the car runs fine. Hope this helps.

  • Barry B
    Barry B Oct 21, 2013

    Oh yea, my car was a 2010 Kia Optima

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  • Master
  • 625 Answers

Semms to be like some of the vapor lines coming from thank to engine might be flooding your engine,
but also locate the fuel pressure regulator at the engine compartment and unplud the vacium hose, if you see any fuel coming out from fuel pressure regulator, or if the vacium hose smeel like fuel, then the regulator is not good.

Posted on Sep 11, 2008

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Posted on Jan 02, 2017

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