* Blown Fuse: Check the fuse related to the fuel pump in the fuse box (usually under the hood and/or inside the cab). Your owner's manual will show you the fuse layout.
* Bad Fuel Pump Relay: The relay itself might have failed. It needs to be replaced, not reset. You'll find the relay in the underhood fuse box. Your owner's manual will show you its location and which one it is.
* Faulty Fuel Pump: The fuel pump itself might be bad. This requires replacement.
* Wiring Problems: A broken wire or corroded connection in the fuel pump circuit could prevent power from reaching the pump or relay. This requires tracing the wires and repairing or replacing the damaged sections.
* Inertia Switch: Some vehicles have an inertia switch (a safety device that cuts power to the fuel pump in a collision) that might have tripped. This switch is usually located under the dashboard or in the engine compartment. Check your owner's manual.
To troubleshoot: Start by checking the fuse, then visually inspect the relay and its connections. If neither is obviously faulty, you might need a multimeter to test the relay and the power going to it and the fuel pump. If you're not comfortable working with automotive electrical systems, it's best to take your Ranger to a qualified mechanic.
