How do you remove heater core from an 1994 0lds delta 88 royale?

To remove the heater core from a 1994 Oldsmobile Delta 88 Royale, first disconnect the negative battery cable and drain the cooling system. Remove the dashboard components necessary to access the heater core, which may include the center console and HVAC housing. Disconnect the heater core hoses from the engine bay, then unbolt the heater core from its housing and carefully remove it. Replace with a new heater core, reassemble the components, and refill the cooling system.