Forum Discussion

hertfordnc's avatar
hertfordnc
Explorer
Aug 08, 2015

Help- Ford Expi 5.4 not getting fuel

Not so much an RV question but i know the folks on this forum are quicker to provide good answers than the Ford Forums and I am in a jam.

Truck was running great then it stalled a light and would not restart.

I jumpered the fuel pump at the inertia switch and it still would not run.

Changed the fuel pump. No change. It gets enough fuel to cough and sputter, runs a little but never gets above idle.

COuld be fuel filter but in my experience a fuel filer will allow it to run fine until you load it. And I need the ford fuel line tool and the stores are not open yet.

So, where else can i look for a fuel flow problem?

Prior to this I got a code for "LEAN FUEL" - i fixed a vacuum leak and it went away. Then i got a code saying fuel was too rich. But the truck was still running fine.

My next move is to open the fuel line at the filter bu I dont think that's the problem.
  • incremental progress. I found the fuel filter to be clogged.

    Changed it, car seemed to start easier and idle longer before it died.

    Likewise, pressure at the rail seems higher than before
  • I was about 3/4 of the way through a tank form a good source.

    I don't have a fuel pressure gauge but when i press the shrader it gurgle out, definitely does not look like 45 PSI.

    Would a fuel filter do this?
  • Did you fill it prior to the no run condition? It may be possible that you got a tank of bad fuel! Did you actually check the fuel pressure? You want a minimum of 45psi.
  • I have pretty good fuel flow to the rail but i have no idea what the pressure should be.
  • RoyB's avatar
    RoyB
    Explorer II
    I had similar problems with my older 1999 Ford Expedition... In the end it all got blamed on CORN SYRUP GASOLINE... Everything got fixed when I replaced the fuel pump which of course was inside the fuel tank. The rubber Diaphragms all eat up by the good gasoline we have to use now...

    Roy Ken