To be certain, I strongly recommend:
* Consulting your owner's manual: This is the best source of information for your specific vehicle.
* Checking a repair manual (like a Haynes or Chilton manual): These manuals usually have detailed diagrams showing the location of all components.
* Searching online for diagrams specific to your year and model: Many websites offer repair information and diagrams. Use very specific search terms like "2000 Dodge Ram Van 1500 318 fuel filter location diagram".
Visually inspecting the area near the fuel tank on the driver's side is your best bet after checking those resources. The filter is usually a cylindrical canister and may have fuel lines leading to and from it. Be very careful working around fuel lines and the fuel tank as fuel is flammable and dangerous.