1. Identify your engine: Check your vehicle's documentation (owner's manual, etc.) or the sticker under the hood for the engine type (e.g., 2.2L, 3.9L, 5.2L, etc.).
2. Consult a repair manual: Once you know the engine, find a repair manual specific to your year and model Dodge Ram 100 and engine. This manual will have diagrams showing the fuel filter's location. You can often find these manuals online (eBay, Amazon) or at auto parts stores.
3. Look near the fuel tank or engine: Generally, fuel filters are placed either near the fuel tank (on the frame rail) or close to the engine. However, without knowing your specific engine, it's impossible to give a precise location.
Without knowing the engine type, any further guidance would be inaccurate. Always refer to a repair manual for the correct procedure for locating and changing the fuel filter.