98 3.0L auto weak fuel pressure

[2ndSS]

asking for advice. 98 ranger 3.0L auto 2wd. cycle key sometimes 10psi sometimes 30. guy I bought it from replaced fuel pump (not the complete module, just the fuel pump). same thing. seems 98 is an oddball year, 97 had a fuel press reg. 99 is fuel on demand, I was told ford change mid model year? I thought I found a fpr on the fuel rail but was told it was a pulse modulator. is there a fpr in the tank?

 

[2ndSS]

update, guy i bought the truck from replaced the fuel pump, however neglected to replace the 25 yr old rubber in tank hose, it was split and pumping gas back into the tank

 

[RonD]

1998 and up do have a Fuel Pressure Regulator(FPR) but it is in the gas tank on the fuel pump assembly
Round metal device

No "fuel on demand" in 1986-2011 Rangers, F-series did have that in later years

1998-2000 Rangers had the FPR on the outlet of fuel pump, and then out of FPR to the filter and engine
But that didn't work very well, the pressure at the engine could change up and down by 20psi, which gives the computer "fits" calculating injector open time, lol

Pump---FPR---------filter------------------engine

So in 2001 they added a return line to fuel tank again
But Return just comes from the fuel filter back to the FPR still in the tank

Pump----------------filter------------------engine
FPR-----------------/

This smoothed out the pressure at the engine end, under 6psi shifts up or down