What you might be mistaking for a fuel pump shutoff switch is:
* Inertia switch: Some vehicles, though not all Rangers, have an inertia switch that cuts power to the fuel pump in a collision to prevent post-crash fires. This is usually a small, easily resettable switch, often located under the dash, sometimes in the engine compartment, or even in the passenger compartment's kick panel area. If you find one, it will typically have a button that you can press to reset it. *However, its presence on a '94 Ranger is NOT guaranteed.* Check your owner's manual to be sure.
* Fuel pump relay: The fuel pump is controlled via a relay. While you *could* disconnect this relay to stop the fuel pump, this isn't a safety feature – it's more of a troubleshooting step. You shouldn't leave it disconnected for any length of time.
If you suspect a fuel pump problem:
Instead of hunting for a non-existent shutoff switch, addressing any fuel delivery issues involves a diagnostic approach:
1. Check the fuel pump relay: Locate the fuel pump relay (check your owner's manual or a wiring diagram) and check for any damage. Try swapping it with another relay of the same amperage rating (a good idea is to swap it with a similar relay in the fuse box, if you have one that's not critical for operation).
2. Check the fuel pump fuse: Ensure the fuse for the fuel pump is intact.
3. Check for power at the fuel pump: This requires testing with a voltmeter to see if the pump is receiving power when the ignition is turned on.
4. Listen for the fuel pump: When you turn the key to the "on" position (before cranking the engine), you should hear a brief humming sound from the fuel pump in the tank. If you don't, this suggests a problem.
In summary: There is no dedicated fuel pump shutoff switch to reset on a 1994 Ford Ranger XL 2.3L. If you have fuel delivery problems, focus on diagnosing the electrical circuit and the pump itself. A mechanic would be the best resource to determine the exact cause.
