To find it, you'll need to consult a repair manual specific to your Jeep's year and model. A Haynes or Chilton manual would be helpful, or you can search online for a diagram of your specific engine.
Generally, however, look in these areas:
* Valve cover: This is the most common location. The PCV valve is often a small, usually plastic, valve screwed into the valve cover.
* Intake manifold: In some cases, it might be on the intake manifold itself.
Without knowing the exact year and model of your Jeep, giving a precise location is impossible. Using a repair manual or online resources specific to your vehicle is crucial to locate it accurately.