15 up to 60 , depends on year.
39 or 49 psi, depending on the year.
On a 1995 Ford 4.0 liter V6 engine : I believe that is 39/40 PSI ( 30 PSI at idle ) fuel pressure
39 PSI according to my Chilton book
Throttle body fuel system is 14 psi, Port fuel injection is 39 psi or 49 psi depending on the year.
39 psi +/- 5 psi39 psi +/- 5 psi
2.5L - 14.5 psi3.9L and 5.2L - 39 psi +/- 52.5L - 14.5 psi3.9L and 5.2L - 39 psi +/- 5
39-=43
39 gallons
I ASSUME it would be the same as the 4.0 liter in my 1995 Ford EXPLORER ; ( 39 / 40 PSI , key on , engine off , and 30 PSI with engine running at idle )
39-48psi
39 psi +/- 539 psi +/- 5
Fuel pressure can range from 39 PSI to 52 PSI in a properly operating system.