1. Identify your engine: Look for a sticker under the hood (usually near the radiator support or on the driver's side inner fender) that states the engine type (e.g., 5.9L Magnum, Cummins 5.9L). This is crucial.
2. Consult a repair manual: Once you know the engine, get a repair manual specific to your 1998 Dodge 2500 and that engine. These manuals will have diagrams showing the exact location of the fuel filter. A Haynes or Chilton manual are readily available.
3. Online resources: You might find diagrams and location information on forums dedicated to Dodge trucks (like DodgeTalk or similar). Search specifically for your engine and "fuel filter location." Be cautious, as information online isn't always accurate. A repair manual is the most reliable source.
General areas to look: While not guaranteed to be in these spots for your specific engine, the fuel filter on many vehicles is commonly located:
* Along the frame rail: This is a common location, often near the fuel tank.
* Near the engine: Sometimes it's close to the engine, but usually not directly on it.
Without knowing your specific engine, giving a precise location is impossible. Always refer to a repair manual for your vehicle's exact engine.
