How do you replace a 98 suzuki sidekick heatercore?

To replace the heater core in a 1998 Suzuki Sidekick, start by disconnecting the battery and draining the coolant. Remove the dashboard and the center console to access the heater core; this involves detaching various components like the radio, control panel, and possibly the steering column. Once the heater core is exposed, disconnect the heater hoses and remove the mounting screws to take out the old core. Install the new heater core, reassemble the dashboard and console, and refill the cooling system before testing for leaks.