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Optima overheated now won't start

I bought a 2004 Kia Optima LX manual transmission when it had already 160,000 miles on it. After purchasing and upon a more thorough inspection I replaced plugs, plug wires, complete oil change, replaced fuel/air filter, and replaced worn out valve cover gasket. It started to sputter when you mash the gas like its stalling. I replaced the two ignition sensors since a reading stated code that the sensors were the problem. Then only 3 weeks later the engine stated to hesitate and motor became very sluggish acting as it was about to stall. After a few minutes it seemed to clear and drive well. Drove it for about 10 miles more started doing the same hesitating/sluggish act this time raising the temperature into the red while emitting an oily smell and stalling after about a mile. It begin smoking and I was forced to leave it until I got it towed home 5 hours later. When it was loaded on tow truck I noticed where it was parked there was a puddle of oily substance. I'm thinking about just bypassing all potential problems and go on and have the motor replaced. I would like to know if this makes since or should I take some other steps prior to avoid all the engine replacement costs. Any information welcome beings this is our family's only means of transportation.

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Posted on Jan 02, 2017

  • 31 Answers

SOURCE: hesitates/stalls during acceleration

i would check fuel supply, volume adn pressure, i wold also look at the MAF sensor hot wire to see if it has a little chia pet growing on it.

Posted on Dec 13, 2008

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