What you might be thinking of, depending on the specific problem, could be related to:
* Fuel pump relay: A faulty relay can prevent the fuel pump from working. Replacing or checking this relay is a troubleshooting step, but it's not a "reset". The location of the relay varies slightly depending on the engine and options, consult your owner's manual or an online repair manual specific to your truck's engine and options for the precise location.
* Fuel pump inertia switch: This switch is a safety device that cuts power to the fuel pump in the event of a collision. It's usually located under the dash or in the engine compartment, and sometimes needs to be reset (pushed in) after a collision if the fuel pump isn't working. Again, check your owner's manual for the exact location in your truck.
* PCM (Powertrain Control Module) issues: Problems with the PCM can affect fuel delivery, but "resetting" it usually involves disconnecting the battery for a period of time, not a simple switch press.
To diagnose a fuel-related problem in your 1998 Dodge Ram, you'll need to describe the specific issue (e.g., won't start, running rough, etc.). Then, consulting a repair manual specific to your truck's year, engine, and options will be essential to accurately identify and solve the problem.
