Stalls when it rains.

[sisco55]

I have a 1999.5 7.3 powerstoke and on my way to work it started raining. All of a sudden, my engine died and my dash lights came on. This was only for a couple of seconds. Dash lights went off and I had power again. This has been going on for the past year and only when it rains or very damp weather conditions. Whats funny it only does it only once and the truck does fine the rest of the trip. Sounds like a circuit is getting wet. Any suggestions?

[Tyler]

That has to be electrical. I'd take a Sunday when you have NOTHING to do and check every connection.

[highland512]

I had a friend who was having the same problems with his. He has a sun visor on his truck and water leaked around the screw holes and then dripped onto the pcm and got inside and shorted it out.