My ford did the same thing. It was a super cold day in Colorado and my thermostat was frozen. I started my truck let it run for a while to warm up then when I went to drive away the hose burst and antifreeze went everywhere.

Dont know if this is helpful but it might have something to do with the outside temp.. <img src="/forums/images/graemlins/cheers.gif" alt="" />

96 Montero LS 24V DOHC 3.0L.
98 Montero 24v SOHC 3.5L, factory rear locker, Winter/tow package.
63 Jaguar XKE 3.8L FHC
2000 Mercedes-Benz e430
07 fj cruiser