Therefore, there's no reset switch for the fuel pump itself. If you're having fuel delivery problems, the issue isn't likely a simple resettable switch. Troubleshooting would involve checking things like:
* Fuel level: Is the tank actually low?
* Fuel filter: A clogged fuel filter is a common cause of fuel delivery problems.
* Fuel pump relay: This is an electrical component that controls the fuel pump; it might be failing.
* Wiring and connections: Check for damaged or corroded wiring leading to the fuel pump. This is tricky because the pump is in the tank.
* Inertia switch (if equipped): Some vehicles have an inertia switch that cuts power to the fuel pump in a collision. Check your owner's manual for its location (it's usually under the dash or in the engine bay). This is a resettable switch, but it's unlikely to be the cause unless the truck was recently in an accident.
* Fuel pump itself: The pump may have failed and needs replacement. This requires tank removal.
Before undertaking any repairs, it's best to consult a repair manual specific to your year and model truck, or a qualified mechanic. Working on fuel systems requires caution due to the flammability of diesel fuel.
