Originally Posted by
3fingersalute
Having a similar problem with my daughter's car, haven't tracked down the root cause yet. First time it happened I brought it home, drained all coolant and replaced the thermostat and the radiator cap, all hoses look good. She drove it for about two weeks and it did it again, so I topped it off and drove it around for a while, no problems. Can't ever find a leak, it just will start shooting steam out. Car has never overheated or even gotten above the normal temp range.
I'm going to have it looked at soon, but I fear maybe a head gasket. As enough coolant leaks out what's left could be boiling maybe? I can't smell or see any antifreeze in the oil, but I just have a bad feeling it might be that.