How do you replace the heater core on a 2001 Chrysler PT Cruiser?

To replace the heater core on a 2001 Chrysler PT Cruiser, begin by disconnecting the battery and draining the cooling system. Remove the dashboard and the center console to access the heater core housing. Disconnect the hoses and remove the screws or clips securing the heater core in place. Install the new heater core, reassemble the dashboard and console, and refill the cooling system before reconnecting the battery.