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Q: My car just stops while driving then it will start again and stop again then run on 2001 Kia Optima

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i have replaced fuel filter
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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Ok, there are trouble codes stored in the computers memory, go to Advance or Auto Zone and have the codes read and post the code numbers and we can advise.
Have the Crankshaft Position Sensor checked/replaced, not DIY repair, behind timing belt cover, i think! May also have a vacuum leak.
Had those checked already, i am at a loss. The engine light went out today so I will see how long thst lasts. Thank you
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