Heater core replacement for 1988 Lincoln mark 7?

Replacing the heater core in a 1988 Lincoln Mark VII involves several steps. First, you'll need to drain the coolant and remove the dashboard to access the heater core, which is located behind the firewall. Disconnect the hoses, remove the heater core from the housing, and install the new one, ensuring all seals are tight. Reassemble the dashboard, refill the cooling system, and check for leaks to complete the process.