Heater core

I started smelling anti-freeze when I turned the heater on, so I'm almost positive it is the heatercore. My question is do I have to discharge the air-conditioning unit to replace the problem core ? If so is this an easy thing to do if I can even do it myself, any help would be greatly appreciated.
Thanks
Tbird1

You shouldn't have to discharge the A/C to replace a heater core. If you could tell us what year/engine/etc., you car is it would help :)

Look in the Tech Help thread at the top of the forum threads and you will find info on how to replace the heater core.

You shouldn't have to discharge the A/C to replace a heater core. If you could tell us what year/engine/etc., you car is it would help :)
It is a 95 T-Bird and has a 4.6 engine.