you have to take out the whole dashboard
You must remove the dash.
To remove the heater core on a 1992 Grand Marquis, first remove the dash board. Then remove the AC box to have access to the heater core.
Drain the water from your 1994 Chevrolet Blazer cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
Remove the water supply lines from your 1990 Ford E3 50 heater core. Remove the heater core retaining bolts. Reverse the process to install your new heater core.
you have to remove the dash
Drain the water from your 1994 Chevrolet Cavalier cooling system. Remove the water supply hoses from the heater core. Remove the heater core retaining bolts. Reverse the process to install your new heater core.
You have to remove the dash and cowling underhood to remove the heater case. Then you would need to disassemble the heater case.
# Disconnect the negative battery cable and drain the cooling system. # Disconnect the heater hoses from the heater core inlet and outlet connections in the engine compartment. # Allowing residual coolant from the heater core to drain. Cap the openings. # Working inside the vehicle, remove the lower instrument panel sound insulator. # Remove the heater floor outlet duct screws or clips and remove the duct. # Remove the heater core cover by removing the attaching screws and clips. # Remove the heater core cover. # Remove the heater core retainers and remove the heater core.
drain coolant. remove heater hoseson the inlet and outlets inside engine compartment passenger side near firewall.remove heater core pipe clamp.remove the glove box.remove insulation below it.remove the evaporator temp sensor wiring clip from the heater core cover. remove heater core cover. remove core clamp then slide the core out carefully.
Remove the dash. This job is NOT easy.
Yes.
If you have not done this before, it is a very time consuming job. Replacing the heater core is not the problem. Getting to it is. Unless you are willing to start removing panels and know how to remove them without damaging the plastic panels and clips, I suggest you take it to a professional. It is just a matter of removing enough to actually get to the core. Once you get to the heater core, first drain the radiator enough to get the level below the heater hoses. Remove the heater hoses, and then remove and replace the core.