If the item went down the defroster vent, you must disassemble the plastic ductwork under the dash to get to the item. On certain models the dash must be removed. Please consult the factory repair manual, Hayne's manual or a Chilton's manual, one of which should be available at any auto parts store for your particular model.
The heater core is inside the hvac housing behind the dash.
I also have a 2000 jeep wrangler. This year has a problem with the heater core plugging up. You can either try to flush it out, or just replace the heater core.
how hard is it to replace the heater core in a jeep liberty limated editon step by step instructions
The heater core is inside the hvac housing under the dash.
Thermostat and/or heater core may be defective
if you got antifreeze on your windshield when you turn the heater on, it's bad
To replace the heater core in a Jeep Comanche, start by draining the coolant and disconnecting the negative battery cable. Remove the dashboard and the heater assembly, which may involve taking out several screws and bolts. Once you have access to the heater core, disconnect the hoses and remove the core from the housing. Install the new heater core, reassemble the heater assembly and dashboard, and then refill the coolant before testing the system.
About $600
Yes
Do you live in an area that you need your heater?
Heater core may be defective
To replace the heater core in a 1997-2001 Jeep Cherokee, first disconnect the battery and drain the coolant. Remove the dashboard and the center console to access the HVAC unit. Disconnect the heater core hoses from the firewall, then remove the screws and clips securing the heater core in the HVAC housing. Install the new heater core, reassemble everything in reverse order, refill the coolant, and reconnect the battery.