1989 f150 fuel delivery problems
Recently purchased a 1989 f150 with 4.9l. It had
something continuing to run after ignition was off.
First tried cooling fan for injectors with no luck.
Tried unplugging fuel relay and that stopped it.
Replaced fuel relay and truck seemed ok. I started
it several times and let it idle for about 30 minutes
with no problems. Tried to drive it that night and it
only went about 1/12 miles, sputtered and died. It
has 1/2 tank of gas and I checked the inertia
switch which seems ok. It will now start
occasionally but will not run.Any thoughts?