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Q: My wife has a 2004 Kia Sedona with starting problems. on 2004 Kia Sedona

The van will start fine when it is hot or cold. If you park it and go to start it about an hour later, it tries to crank but violently stops and all the dash lights go out. The the lights will come back on and it will try to crank again and does the same again. I smell gas like the engine is flooding as well. If we leave it alone for a few hours it will start right up. I have changed the coolant temp sensor and the throttle position sensor.
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neither had anything to do with the issue. i would look at connections at the battery. clean both cables inside and out very well. clean and tighten all grounds as well.

Thanks Roy. I checked around and found a plug undone to the ignition misfire sensor. Working fine now. Must of gotten unplugged when I did a tune up. Figures.
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