We just replaced this, and it was inside the motor I think. I know they had to take off the plastic covering then open up the engine part, and it was right on top. Cost me about $110 with a new serpentine belt too.
It could be a bad crankshaft sensor or a bad camshaft sensor.
The crankshaft position sensor is located behind the timing cover and above the crankshaft gear. the timing belt my have to be removed to access the bolts on the sensor.
On a 2004 Kia Optima, the crankshaft sensor is located on the front of the transmission case. The sensor is adjacent to the flywheel.
The 2004 Kia Sedona has 24 valves.
The 2004 Kia Sedona has a V6 engine.
The 2004 Kia Sedona is a gas-powered vehicle.
The 2004 Kia Sedona has a 5-speed automatic.
The 2004 Kia Sedona is 16 ft. 2.1 in. (194.1 in.) long.
The 2004 Kia Sedona runs on regular unleaded.
The 2004 Kia Sedona has double overhead cam (DOHC).
The curb weight of the 2004 Kia Sedona is 4802 lbs..
The maximum payload of the 2004 Kia Sedona is 1157 lbs..