How do you replace the heater core in a 1992 ford bronco?
Drain all coolant from your system, disconnect heater core hoses from heater core in engine compartment. Remove the glove box, open plastic housing, and theres your heater core. No need to remove dash if only replacing the core.
You have to take out the whole heater and air condiasioning system out and replace the new heater core in. When you replace the heater core, you firset have to put the air condiasoning system in then the heating system/ heater core. When you take the old systems out, you first have to take out the A.C then the heater.
There is no short cut or fast way to do this. The dash has to come out to access the heater box and replace the core. So the steps in replacing the heater core are to disconnect the heater hoses, remove the dash, to access the heater core cover on the front of the heater case and replace the core. Reassembly is in the reverse order as disassembly. Fill the cooling system with new coolant…