Bought a 93 SC300 recently with 164k miles. A day or two later noticed there was a crack on the radiator near the cap. Replaced the radiator a day later, the following morning as i was driving i noticed the car was overheating so pulled over, smoke was coming out from under the engine or radiator couldn't really tell because of how windy it was (was off the side of the freeway), went to the Home Depot across the freeway to get some coolant for the radiator, as i was pouring into the valve i noticed that it was leaking from the bottom, the hose somehow came off... Plugged it back up, and went and bought MORE coolant, once i tried firing up the car it wouldn't start, it was turning over and shooting out all the coolant from the radiator valve. Haven't had the time to take it to a mechanic to do a compression test, but does anyone here have an idea to what the problem might be?

 

did you notice white exhaust smoke? When mine blew that was the tell tale sign.

 

Nope. Smoke did come from the engine bay when i pulled over though. No coolant mixed with the oil either.