Dart dies when hot???

Just wonderin......you have a shop workin on it. How come you're askin us? I'd understand if you were doin it yourself. You gonna go back to them and tell them what somebody said on the internet? That might not go over too well.

I do agree though, it sounds like something electrical breaking down due to heat.
Yes, I do have a shop working on it, first time in over 25yrs of owning this car just cause I don't have the time to mess with it right now but I still like driving it. I do trust the shop, guys a Mopar guy. No I'm not intending to go tell him the internet told me you should do this or that. But it is a bit of a mystery problem and I'd like to learn for myself what it could be and if anyone's had a similar problem, it may keep from me from sitting on the side of the road with the hood up for an hour next time. I appreciate everyone's responses and knowledge.