88 sami 1.3l, stopped to get gas the other day and got out to pump and heard a water fall, looked under and water was had literally dumped out!! opened the rad up ..... no water at all..thought the water pump blew, so i filled it back up with water to limp it back home expecting it to overheat on the way home.got home without overheating which was 30k away.. no leaks at all... been driving it for three days now and dont know why she dumped her water????? my closest guess was maybe the thermostat stuck and then it just purged out the over flow????? any guesses????