where is the crank shaft position sensor located on a kia optima

On the front of the engine.

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sensor speed of the crankshaft Kia Opirus ?

Under your belts

I have a question I have a knocking sound in my car i was driving and my car cut off everything was working what causes it to turn off?do i need to change the crank position sensor or the knock sensor

It sounds like you didn't check the oil and it's bone dry. But I would Google the symptoms.

Here's something. You can look up more

Good luck

where is the crankshaft position sensor is located on 2014 kia optima