Re: 1990 Cherokee fuel pressure demon!
Welcome David. The stock fuel pump will put out up to 55#. I have one that does that. The regulator is mechanical and modulated somewhat by vacuum so that an absence of vacuum will increase the pressure and output of the injectors whenever you have a heavy foot. You might try pinching off the return line where it is rubber and check the pressure. If you still cannot get over 25# out of it, better replace that pump
230 hp 4.3L Chevy
Built 4L60E with manual lockout
Atlas 4 speed
Griffin radiator
On board air
Warn 9.5ti on custom bumper
7.5" RE front and bastard pack rear on custom long arms
30 gal gas tank
lockers
And a bunch of other stuff
Bookmarks