If you're having fuel delivery problems, the issue isn't likely a tripped shut-off switch, but rather one of these possibilities:
* Inertial Switch (Crash Switch): The Ranger *does* have an inertial fuel pump shut-off switch, often located under the dash or in the engine compartment. This switch cuts power to the fuel pump in a collision to prevent fires. If your truck was in an accident (even a minor one), this switch might have tripped. Locate this switch (your owner's manual or a repair manual might help), and check to see if it needs to be reset. It typically involves pushing a button or resetting a lever.
* Fuel Pump Relay: A faulty or malfunctioning fuel pump relay prevents power from reaching the fuel pump. This is a common cause of fuel pump problems. You can test the relay (by swapping it with a known good one) or replace it.
* Blown Fuse: Check your fuse box for a blown fuse related to the fuel pump or fuel injection system.
* Fuel Pump Failure: The fuel pump itself could have failed. This is less likely if the engine was running fine recently and then suddenly stopped.
* Other Electrical Issues: Problems with the ignition system, wiring, or the computer can also prevent the fuel pump from activating.
To troubleshoot:
1. Check the inertial switch: Locate and reset it if necessary.
2. Check the fuel pump relay: Test it or replace it.
3. Check fuses: Check the fuses associated with fuel pump and ignition.
4. Listen for the fuel pump: When you turn the key to the "on" position (but don't start the engine), you should hear the fuel pump briefly prime. If you don't, that indicates a problem in the power supply to the pump.
If you're not comfortable working on your vehicle's electrical system, it's best to take it to a qualified mechanic for diagnosis and repair. Attempting repairs without the proper knowledge can be dangerous.
