weird cutting out problem

it might be getting a little warm under the hood. all of the hot air might be
choking out your engine but when you put it in neutral and rev it, it has more air
circulation to allow cool air into it as well as driving on the highway. bumper to
bumper traffic sucks i live in a smallish town but when i get caught in it my car
runs hotter than usual. until i get back up to speed.