Attach a fuel pressure gauge to the service port on the fuel rail.
Have a fuel pump pressure test done.
To check the fuel pump on a Ford Ranger, start by ensuring there's power to the fuel pump. You can do this by listening for a humming sound when the ignition is turned on (without starting the engine) or using a multimeter to test for voltage at the fuel pump connector. If there's no sound or voltage, inspect the fuel pump relay and fuse. If both are functioning correctly, the fuel pump may need replacement.
Of course if the fuel pump is not running the fuel pump fuse, fuel pump relay, or the pump itself is defective. But the pump can be running and still be not pumping fuel. The only way to know for sure is to run a fuel pressure test. Do not overlook the fuel filter as it may be clogged.
test your alternator or fuel pump
Fuel pump pressure test.
Fuel pressure test at the fuel rail.
Fuel Pump Pressure Test Look at the Related links below for help.
A fuel pump pressure test could determine the condition of the fuel pump and fuel system.
Where is the fuel pump fuse and relay on 1994 BMW 525i and how can I test to see why my fuel pump won't work
Start with a fuel pump pressure test.
With a fuel pressure test at the fuel rail.
Your Fuel filter is attached to the fuel pump, which is located in the fuel tank if its a gasoline burning vehicle. Diesels should be located inline.