The AC has to be dischared, and the AC lines have to be removed at the firewall. The AC drier has to be remved, because there are nuts on the outside of the firewall under the hood to remove that are hidden by the drier. I believe there are 4 nuts to remove, but there might only be three.
-remove front seats-remove steering column-remove entire dash-remove heater hoses from engine side of firewall/bulkhead-remove A/C hoses from engine side of firewall/bulkhead-remove nuts holding heater / A/C box (on engine side of firewall/bulkhead)-remove heater / A/C box from cab side of firewall/bulkhead-remove top of heater / A/C box.-replace heater core
Remove the passenger side fender and wheel well. Remove the blower motor wire. Remove the heater hoses. remove the nuts holding the heater box to the firewall. Remove the heater box from the firewall take out the heater core revese this process to replace all removed parts.
Raise the froth of your car. Drain the radiator. Remove the heater tube from firewall and loosen the hose clamps. Lower the vehicle after draining the antifreeze. Locate the heater core and remove the mounting clamps. Remove the heater core and replace it.
on my 1985 Lincoln town car i had to remove the dash and get back to the firewall and remove a panel on the firewall to get to it. good luck it is a pain.
The heater fan I believe is located behind the glovebox by the firewall. Just remove the duct and unbolt the fan.
Drain the radiator. Remove the heater hoses from the fittings at the firewall under the hood. Loosen the dash, and pull it out enough to reach under to the heater core. unbolt the core, remove, then replace. Reverse the procedures to finish the installation.
Open both front doors and remove everything from the front seat to the firewall, no kidding.
Take out engine side hose by quick release remove plate then slip out black box. Replace metal tubes that run from the heater core to the firewall. remember to replace thermostat if need be and execute a coolant flush.
Heater core should be behind glove box. Remove glove box and screws( approx. 8) that holds cover in place. Pop hood and look for two hot water lines running into firewall at that location(passenger side) Remove lines by loosening hose clamps(advisable to replace) Remove heater core from inside and replace.
first you will have to remove your heater hoses going to your motor to the firewall take them off at the firewall, then there is a big box on your firewall, there is a bunch of screws holding it on remove them you heater core will be inside it.
The heater core is on the passanger side, located behind the bower motor housing on the firewall. If the car doesn't have AC it is not a difficult project. Remove the heater hoses from the firewall and then remove the screws that attach the cover to the firewall. The heater core rests inside.
do u have a diragram