How do you remove a heater core on a 88 jeep Comanche?

Answer 1

I just completed replacing a heater core on my 1989 comanchie. You must be mechanically inclined as you have to remove the entire dash from drivers side to passenger side. I removed the lower dash with the ashtray in it first, then the glovebow door,right sideand under glove box moldings. Dash instrument/radio/heat-A/C controls molding. Instrument Cluster.Heater controls.Radio. Headlight switch. Remove the defrost vent moldings to reveal dash mounting hardware. The remainder of the base for the dash has to have the pop rivits drilled out to remove it from the metal brace that runs from the steering column to the passenger side and the drivers side- Or remove the steering column which I opted to not do. Remove the Blower Motor. Disconnect the Heater hoses and A/C hoses. Remove the three nuts around the blower motor that hold the evaporator box to the firewall.Remove the whole evaporator and blower box from firewall inside vehicle to expose the heatercore in the center of the lower dash.heater core is held in with only 2 screws. There are multiple fasteners throughout this disassembly that have to be located and removed and kept track of for reassembly. I opted to replace my evaporator core also since it needs to be removed anyway. The removal alone took me 8 hrs to do.