After a couple days reading everything online
I could find about troubleshooting fuel pump
problems, I checked the voltage at the inertia
switch and it was around 9volts. I checked
the battery voltage and it was 11.3 volts, so I
charged the battery all day to get it fully
charged. It was at 12.5 when I tried again.
same thing engine turned over but didn't
start. Checked voltage again at switch and it
was around 9 volts then battery again it was
11.5 volts. Took a different known good hot
battery and set it in the floor board but the
inertia switch. Put a wire to the pink wire that
goes to the pump and ground wire to the
frame. I immediately heard the pump come
on. It cranked up. Moved the hot battery out
to the battery installed on the Explorer and
used it to jump boost. It cranked again. I
went and bought a battery, PROBLEM
SOLVED! It was hard to believe the battery
was hot enough to turn over the engine but
not run the fuel pump!
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