How do you change heatercore in a 1994 Ford Thunderbird?

To change the heater core in a 1994 Ford Thunderbird, first, disconnect the battery and drain the coolant from the radiator. Remove the dashboard and the center console to access the heater core housing. Disconnect the heater core hoses from the engine compartment, then remove the screws securing the heater core in place. Finally, install the new heater core, reassemble the dashboard and console, and refill the coolant.