Question about 2001 Kia Optima

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2001 Kia Optima acceleration drop out problem

I just bought a 2001 Kia Optima new (been setting on the lot). It has a acceration drop out problem... when accelerating in 2nd and 3rd it's like fuel stops being sent to the engine for a short period of time enough to make it jerk... occassionally it happens in other gears, and sometimes a lot worse than others. I have run it through 5 tanks of gas (just in case the gas was bad/old). Our Kia dealership (Shelby, NC) said they couldn't do anything until the computer "Posts" a code. Otherwise the car has been exellent.. decent gas mileage, great ride, etc. Any idea's???... should I write Kia a message?? JT I'm having the same problem, however my car only does it when the temperature is hot outside and I've driven for at least an hour. It's like the fuel stops flowing and I lose power. If you press the accelerator you hear the engine revving and the rpm's go up but it will not go. If you back off of the accelerator and barely tape it it will crawl along at about 35 mph. I've taken it to 3 different mechanics, it does not throw any code on the computer, and they can never get it to act up because they don't drive it long enough. Any help!

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  • wade0354 Nov 27, 2008

    i have the same problem exept my 2001 Kia Optima 5speed manual acceleration drop out happens as soon as i drive the car if i apply to much accelerator about half way down the car revs out but i can dive it at low rpm fine with out acceleration drop out i filaly share the same problem i thought it was the cluch but mines only done 15000 ?????

  • Anonymous Mar 26, 2014

    runs rough, slow acceleration, bad gas mileage. sometimes runs ok ish,

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I would have them check the Sensor that is located on top of the transmission, I had a similar problem back when I bought mine. And I was told that the sensor was Bad, and there was a recall on it and it is a common problem. Because of where the Sensor is located it is a pain to get to, they have to drop the transmission. So for me anyways instead of just dropping the transmission to swap out the sensor, the Kia dealership that we bought the car from Replaced the whole Transmission/Sensor with a brand new Tranny. I have over 160,000 miles on the Car now and I have had no problems since.

Posted on Sep 03, 2008

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Try the crankshaft position sensor, this link brings you to the recall page, i'm on my 2nd one the first one was replace under warranty, but not my second because i exceed my miles of 89,000
http://www.automallusa.net/2001/kia/optima/recalls.html

Posted on Oct 28, 2008

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I had to have the sensor replaced for the exact same problem. the dearler I went to did not mention a recall - and since my warranty had just ended 4 months ago, I had to pay for it. Do you know the name of the sensor so I can check on this and if it is the same one - get my money back? BTW - is still does it.

Posted on Sep 08, 2008

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