Blind man typing...
Ok, didn't read your post well enough. . What year was your truck ?
My Grandpa loves the Chevy diesels,, he has had 3 vans with diesels,, and only one gave him trouble (2 out of 3 ain't bad LOL)
The van that gave him trouble was a bummer,, it was a conversion van,, and it would just "turn off" at will,, anywhere it wanted to,, at anytime,, sometimes never in a month, sometimes 2 - 3 times a day,, all you'd have to do is turn the key completely off, and simply restart it. Everything concerning the motor, besides the motor itself was replaced and it STILL had the problem.
MerrickNJr