If you're having fuel delivery problems, the issue likely lies elsewhere:
* Fuel pump failure: This is a common problem with older vehicles. The pump itself needs to be replaced.
* Fuel pump relay: This electrical component controls power to the fuel pump. It could be faulty.
* Clogged fuel filter: A blocked filter prevents fuel from reaching the pump.
* Low fuel: Sounds obvious, but check your fuel gauge.
* Wiring issues: Problems with the wiring leading to the fuel pump can also interrupt the flow of power.
* 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 is usually located under the dashboard or in the engine compartment.
To diagnose the problem, you'll need to check these components and potentially consult a mechanic or auto repair manual specific to your 1989 Ford E-150. Simply searching for "1989 Ford E-150 fuel pump troubleshooting" online will yield helpful results.