Truck runs good at idle but after running it starts to miss fire as if running out of gas

Double check firing order and that all wires are firmly on plugs and coil.

Make sure the firing order and plug wires are installed correctly. You can seriosly damage your engine with out of sequence timing!

Check for spark at the plug ( may have coil problem).
If spark is good then do a compression check. Pressure shouldn't be less than 75% of known good cylinders.

Got a check engine light? Get the codes read to find out if the misfires are on all cylinders or just 1. Could be ign coil, bad crank or cam sensor, or a valve issue

i would check the mass air flow sensor first

On my 2002 safari I had a inter miss fire. After double checking all electrical. I had a bad injector of all things that was bad. My not be ur case but I thought I would mention it

used coil replaced? with or new??fireing order sounds incorect good place to start

If your plugs weren't wired right you would have trouble with missing, rough idle if it would start and run. Some gas not getting burnt suggests that a tune up may be in order. New plugs, wires, cap and rotor. It would be a good idea to have the throttle body checked out, 16 years of gas flow will wear it and maybe its putting out a little too much gas. Going one hotter on your plugs could also help get rid of that unburnt gas. Make sure there are no codes that would affect gas consumption, if there is fix them first. Hope this helps.

could be a wire crossed, or it's out of time. since you used motorcraft plugs, did you set them properly to the correct gap? replacing plugs without gapping them can cause the sluggishness, out of time can cause the mis-fires and rough running.

Hi,you can re check timing, run compression test,