while i was driving around today i noticed the temp gauge was really high so i stopped straight away. i opened the bonnet & noticed there was steam coming from the water. this happened for a while then the water shot through back into the water tank. i put in some more water & noticed the gauge had went down slightly. i drove it home & could hear a rattling noise every time i accelerated. when i got home it stalled. when i started the engine again there was a big bang coming from the engine.
It sounds like you have blown a head gasket... Or worse. Don't drive it, don't even start it, let a proffesional look at it.
That happened to my explorer once. I had to get it towed.