I have a 03 Triton 5.4 F150 FX4, with about 150k miles....Recently while driving it in the rain it died and would not restart....Once it dried out and set for about two days it started and ran fine until it snowed and got wet again....It does crank and fires just won't start.....Any ideas

 

Black electricial box near spare wheel is broken or cracked!?!

 

I used to have a stalling and starting problem when wet before I replaced my idle air control valve.