I have a 2004 F150 FX4 with a 5.4 Triton I was driving and lost all electrical power and engine died
First my ABS light came on then lost all gauges then lost dash lights then engine died have had battery and alternator tested and they checked out good.
It's either going to be electrical (spark) or fuel. I doubt there it's a air problem. It's a process of elimination. I'd begin checking the spark condition first. It's easiest and can be accomplished with an HEI. The coil can be checked with the HEI also.
It was electrical the alternator was testing good but was not putting out enough so replaced alternator and it fixed the problem thanks for your help.
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