I have a 95 5.0 and I was going down the highway and it's just bogged down on me. So I get it to the side of the road and sat for probly hour or so and it bogged less and less the longer it sat. It was raining and I have had problems in the rain before didn't know if this is a reoccurring thing I could fix.

 

Plug wires.

 

So what should I do?

 

Change them. Get the better ones, sounds like it only happens when it is raining.

 

Definitely plug wires. I had a bad wire in an S10 I had. Every morning that there was a lot of dew, it bogged down and half the time it only ran on 3 cylinders. (It was only a 4-banger.) Replaced the wires, and bang! Thing ran like a brand new truck! (Aside from that pesky exhaust leak!)