Okay, I've got two questions. First of all, My cooling system keeps dumping extra coolant into the overflow bottle and never sucking any back out. Isn't it supposed to take coolant back out when it looses some? I just put on a new cap when I flushed it before I put in my new engine. It was a rather cheap cap, and I don't know if that has anything to do woth it. It occaisionally has a small leak from somewhere around the radiator, but never overheats. Runs around 190. I haven't figured out where the leak is, and it doesn't leak all the time, so I've just kept an eye on it. My second question is about a pep boys reman. engine. I'm putting an engine in a friend's truck to repay him for rebuilding my trans. He doesn't want to spend quite as much as I did for my GM engine. Anyone put in one from Pep Boys? They have a decent waranty, and the price is fairly low.