Some common areas it might be located include:
* On the engine block itself: This is a frequent location, often near the thermostat housing or cylinder head.
* On the oil pan: Less common but possible.
* On the coolant hose: A less common location.
Without knowing the specifics of your Jeep, it's impossible to give a precise answer. Looking at the engine compartment carefully (with the engine off and cooled down!) might reveal it, but referencing your vehicle's documentation is the safest and most accurate method.