94 Crown Vic Heater Core Issue

My coolant level does not go down, but when I move the temperature lever from cold to hot, I get a just a very brief whiff of coolant smell. I've owned the car for about 2 months and had added a container
of Barsleak pelletized to the cooling system shortly after I bought it (160K miles on it, just in case a radiator failure was around the corner). Is there a trick to changing the core? Thanks.
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snipped-for-privacy@peoplepc.com wrote:

The "trick" is to pull the dashboard and HVAC box then replace the heater core. There's no way around it. It's not hard, just time consuming. Get a factory manual before you even think about doing it.
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