1999 Ford F-150 lariat 4wd

Asked by Jun 11, 2016 at 09:27 AM about the 1999 Ford F-150

Question type: Maintenance & Repair

Hey guys so my truck a 1999 Ford F-150 lariat 4wd
5.4L shut off on me while driving the other day and
wouldn't start back up. I checked all my fuses
changed my fuel pump but the pump is not priming
like it should. Any ideas?

5 Answers

Did you try your fuel shut off button it's located underneath the passenger side floor next to the fuse box or behind the fuse box

Underneath passenger side Dash in the floor area on the right side next to the fuse box

11,575

Check for power in the pump circuit (multimeter) and connectors. If the inertia switch is not "Tripped." Regards

I've tried the inertia switch and that's not helping.

6,255

Check for voltage to the pump, may have a bad relay

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