As long as the engine is running, the fuel pump is running.
Yes it does.
You might try the fuel pump relay.
( 6 ) fuel injectors
The electric fuel pump is inside the fuel tank
You either have a blocked fuel filter or fuel line, or the fuel pump is going bad.
That would be 21 gallons.
I have a 93 and my switch is behind the passenger side kick panel.
In the fuel tank.
If it is fuel injected, the pump has to run continuously. If it has a carburetor, it is probably getting weak.
It is inside the fuel tank.
I own a 1992 Aerostar. I believe you will find a reset switch button behind the covering under the dash on the passenger side of the front. You should be able to gently pull the cover back away and reach in, locate the switch and press the reset button.
Big meaning how much gas does it hold? If so it holds 21 gals of fuel. Hope this helps.