2000 Ford F-150 wont restart

Does it stall at idle--highway speed or both? After it stalls does it crank ok? Have helper crank it, while visually check for spark at the spark plugs. I realize you have coil on plug ignition, so it's a pain. They do make tools that will react to bleed-through voltage, so you don't have to unplug anything. I have used a digital multimeter that would react to bleed-through voltage on plug wire, engine cranking or running. You didn't penetrate the plug wire or take it loose. It would show around 1/2 volt or a little more, I just looked for a zero reading, somewhere. I've never tried it on cop ignition.

If possible check your fuel pressure. Some Fords may not have a Schrader valve.

If it cranks good but won't start, I always to look for rpm signal, without that rpm signal, you aren't going anywhere.

Can you check for applicable trouble codes?

Are you saying the starter motor won't crank, or it cranks good but won't start. If the latter, do the tests I've suggested.

With idle issues, I check for a leak of some kind, fuel--egr--vacuum, something of that nature. Also, check and clean idle air system.

Where applicable try tapping on your maf sensor, see if any engine reaction.

Hey, good job.