Where is the orifice valve located on a 2002 dodge ram 1500 v8 5.9?

There isn't a single component called an "orifice valve" in the common sense of the term (like a precisely sized hole for flow control) on a 2002 Dodge Ram 1500 5.9L V8 in a way that's easily pinpointed. The term "orifice" is often used to describe a small hole or restriction in various systems. To help you, I need more context:

* What system are you referring to? The fuel system, cooling system, transmission, or something else? The location will dramatically change depending on this.

For example:

* Fuel system: Orifice-like restrictions might be within injectors or in the fuel pressure regulator. There isn't a single "orifice valve."

* Cooling system: There might be small restrictions within the heater core or thermostat housing, but again, not a specific "orifice valve."

* Transmission: The transmission might have various internal passages with controlled flow, but these aren't typically referred to as "orifice valves."

Please clarify which system you're working on, and what you're trying to achieve (e.g., diagnose a problem, perform maintenance). With more detail, I can provide a more accurate answer.