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Help- Ford Expi 5.4 not getting fuel

hertfordnc
Explorer
Explorer
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.
Dave & Ellen Silva

Hertford, North Carolina

2002 Excursion
2007 Shamrock Hybrid
1972 Revcon
1976 GMC Birchaven (hot rod with plumbing)

Finding propane leaks with a match and towing in overdrive since 1987.
16 REPLIES 16

hertfordnc
Explorer
Explorer
I have pretty good fuel flow to the rail but i have no idea what the pressure should be.
Dave & Ellen Silva

Hertford, North Carolina

2002 Excursion
2007 Shamrock Hybrid
1972 Revcon
1976 GMC Birchaven (hot rod with plumbing)

Finding propane leaks with a match and towing in overdrive since 1987.

RoyB
Explorer II
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
My Posts are IMHO based on my experiences - Words in CAPS does not mean I am shouting
Roy - Carolyn
RETIRED DOAF/DON/DOD/CONTR RADIO TECH (42yrs)
K9PHT (Since 1957) 146.52M
2010 F150, 5.4,3:73 Gears,SCab
2008 Starcraft 14RT EU2000i GEN
2005 Flagstaff 8528RESS