I RAN THE GNGINE 15-20 MIN. HEAT ON HIGH. DASH TOOOK APART, DON'T SEE SIGNS OF ANTIFREEZE BUT SMELL IT . DON'T SEE LEAK UNDER HOOD. BEHIND HEATER CORE I GUESS IS A EVAPARATOR & CORE? ON THE RIGHT SIDE OF IT I SEE BUNCH OF SILVER & COPPER TUBE RUNNING IN AND OUT OF IT AT THE BOTTOM OF I SEE SOME GREENISH STUFF BUT NOT HOT AND DON'T SMELL LIKE. PLEASE BEFOR I BUY NEW CORE AND DON'T NEED IT!!!!