hi turney,
sounds like a head gasket is going on you.. just curious, what kind of coolant is in your rad. If its that reddish ,orange Dexcool, that is one of the reasons intake manifolds and head gaskets fail. that stuff needs to be thorougly flushed out of your engine and entire cooling system, and replaced with regular or all make and model prestone. and by the way, you cannot mix dexcool with any other antifreeze, it will turn into brown sludge. my son blew his head gasket for that same reason. if,and when you decide on a repair or engine replacement and dexcool is in your cooling system, flush that evil stuff out of there!!
Good Luck with your car- i hate hearing stuff like that. ( i think there is a class action law suite against GM for using Dexcool in all there cars)
