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After replacing a crank sensor you must go thru a relearn procedure to resynchronize the new one with the ECM.
This is called "CKP Variation Learn" and is done with a scanner.
In some cases, a relearn is all your old one needs and a replacement is not necessary.
 
My experience with a bad crankshaft position sensor was the engine suddenly die on me while rolling down the road then I couldn't restart it all and no CEL set. OP just asking to confirm the location of the sensor but didn't tell the symptoms.
 
Does anyone know where the Crankshaft Position Sensor is located on a 2010 3.0? I believe it's the cause of a P0017 code and I have a replacement sensor but for the live of me I cannot locate it on the engine. Thanks for any help.
It's next to the starter looking from the front following the starter to were the bolt is right behind the bolt you will see a large sensor and behind that sensor is what you are looking for crankshaft positionsensor
 
Does anyone know where the Crankshaft Position Sensor is located on a 2010 3.0? I believe it's the cause of a P0017 code and I have a replacement sensor but for the live of me I cannot locate it on the engine. Thanks for any help.
You have to remove the heat cover from under the car next to the starter, you will see wires connected to it. If you don’t see wires then you’re not at the correct location. Not one reply in here was ever remotely correct. YouTube is easier to find location. However try to clean with air intake cleaner first before replacing the sensor. Sometimes cleaning is all it takes.
 
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