Why my car is overheating after I got it fixed

Hello, head gasket replacements for a Ford Explorer are not "common" and I can't even recall one needing them in my experience. Which engine do you have? Note that you have the same problem as before -- what testing has been performed? Where is the anti-freeze leaking from? Has a pressure test been performed? It would seem to me that the "auto mechanic" in question here should be doing some rechecking of work performed and assisting.