Oldsmobile/Buick Repair: toronado heating core, heater hoses, heater core

Question
I need to know how to get to the heater core. I have a leak in the system which is putting antifreeze into the heating system. My car is a 87 toronado trofeo.  

Answer
hi bryan. look under the dash on pass side you will see a plastic black box.your heater core is in this box.most cars complete dash has to be removed.heater box must be dissassembled.look under the hood find the two heater hoses going into the caR your core is attached to those hoses.good luck  billy mac