To be absolutely sure, you'll need to:
* Consult a repair manual specific to your Intrepid's engine: This is the most reliable way to find the exact location and will often include diagrams.
* Use a reliable online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to select your vehicle's year, make, and model, and then view a diagram showing the sensor's location.
Without knowing the precise engine size, I cannot give a more specific answer. Always refer to a repair manual or parts diagram for accurate location information before attempting any repairs.