Where is the EGR on a 2004 Ford Ranger 3.0 eng?

The EGR valve on a 2004 Ford Ranger 3.0L engine is located on the intake manifold. It's usually on the passenger side of the engine, but the exact location can vary slightly depending on the specific configuration. You'll likely find it near the back of the intake manifold, close to the firewall. It's a small, rectangular valve with vacuum lines connected to it. You may need a shop manual or a good online diagram (like one from a parts store's website) specific to your year and engine to pinpoint its precise location on your vehicle.