today i was driving form school and i had the heat on full(i am in upstate ny ) out of no were i started to smell coolent and then i saw smoke. when i parked it i open the hood and saw that there was a drop of coolent leaking form my heater core. when i came bad i saw that the coolent was comeing form the passehger side of the engine and was comng from were the head meets the engin block is. how can i fix this and what will i need for the job thanks (96 cavalier 2.2 4 dr)