* Look on the top or side of the intake manifold. It's usually near the back of the engine, but accessibility can be tricky due to other components. It's a relatively small, rectangular or cylindrical valve with vacuum lines and often a small electrical connector attached.
To find it more accurately:
1. Consult a repair manual specific to your 1999 Dodge Ram's engine. A Haynes or Chilton manual will have diagrams and precise locations.
2. Use a parts diagram online. Many online auto parts retailers (like AutoZone, Advance Auto Parts, etc.) let you select your vehicle's year, make, model, and engine, then view a parts diagram showing the EGR valve.
Without knowing your engine size, I can only give a general location. Using a repair manual or online parts diagram is crucial for accurate identification.