[Dewey]

Two days ago when I was driving home from work, my radiator exploded. I pulled it into my garage to inspect it, and the rad cap had popped up a bit spilling coolant everywhere. I inspected all lines going to and from the radiator, and none seemed to look like they had any problems. I filled the radiator back up with 50/50 and left the cap off to burp it. The rad seemed to take a pretty good amount of fluid. I also threw in some radiator stop leak just in case. I allowed it to idle , and it seemed fine. Once I put a load on the engine (uphill from my house. Not on the gas really hard.) I noticed it start to smoke again. I again took the cap off and allowed it to idle. This time I noticed the antifreeze start to boil..

Does anyone have any useful insight on what this could be? I was thinking it could be simply a thermostat going bad, but before I replace that, I would like to hear from more experienced people.