Question about 2003 Kia Sorento

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I have a 2003 kia sorento ex. When the return line is removed....it starts fine.....but when it is placed back....it wont start. |Also......engine wont start when its hot......until its left off for about 1hr+...then it would start...any suggestions....someone send it was vapor lock...is that correct?if so....what is vapor lock and how can this problem be solved?

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If you take the fuel return line off and it starts, it should spray some fuel out of the fitting the line slips onto. If not, you are either pulling the vaccum line or the pressure regulator is bad, or you could have a fuel pump going bad. One way to check the regulator is to apply vacuum to the port on the regulator and turn the key to "run" not start. With vacuum applied, fuel should run out of the return line fitting. If not, bad regulator or weak pump, maybey even a clogged fuel filter. If so, vacuum leak or blocked hose. Let me know if this helps :)

Posted on Jun 16, 2009

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Posted on Jan 02, 2017

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My 2003 model kia sorento quick start problems.


I have same problem and found out I have a fuel leak. The tank is pressurized and it does not get its pressure up, so it starts slow now.

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I have a 2003 kia sorento ex. when i turn light switch on, nothing happens. I have no tail lights or fog etc. only front running lights. All new bulbs and fuses are fine. Brake lights work.


Hi,

I drive a kia sorento and i have had a similar problem. I have a hitch on the back and the electrical connection was bad and kept blowing fuses. I removed the electrical hookup. Easy to do as it is a plug conected to the harness of your vehicle. Located underneath your vehicle just above the rear wheel well on the passenger side. Your fuse panel is located under the hood of your vehicle next to your battery. Remove fuses one by one and check for any that are blown. I hope this helps.

Mar 26, 2011 | 2003 Kia Sorento

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|Wont start


Vapor lock!

Jun 15, 2009 | 2003 Kia Sorento

1 Answer

2003 kia sorento quits running wont start back


Did you try changing the Fuel Filter?  That did it for my Kia Sorento 2004.

Jan 14, 2009 | 2003 Kia Sorento

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