YES YES YES YES ive been hear 2 times before with the duratec engined kas!!

i tryed every think!! water pump stat flushed rad the lot!!! was doing my head in!!! would sit there for hours running fine (at idal or holding the revs up) but after a short drive would over heat!

one melted an engine where the owner kept driving it! put a new engine in and guess what?? it over heated!!!!!

what did i do to fix it in the end???? heater control valve!!

TO THIS DAY i still have no idea how this valve gives these symptoms!! even when it apears to be working fine!!

but on both kas it worked lol