This is not easy. Get a shop manual from AUTOBOOKSONLINE.COM
the easiest way is to take it to a shop and let them do it, you have to remove the dash to get to it
Easiest way is to connect the two heater hoses together.
No, the entire dash has to be removed.
Its not east. must take out entire dash board as the heater core is up underneath the passenger side cabin inside a case. Only way to get to it is removing everything in the way
comes out inside . remove glovebox and go in that way . about one hour .
pretty much the entire dash, all the way to the firewall. its a huge job
In most cases no. The core flows both ways.
remove steering column, pull back dash to passenger front seat, you do not have to dis-assemble entire dash panel. You can access plenum (heater box)this way.
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.
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, and burp the air form the cooling system. 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, and burp the air form the cooling system.
Since they run in parallel, there's no way that a heater core will cause a radiator to get hot.
Most newer model cars the only way to replace a heater core is to completely remove the dash to access the heating system ducts as well as the core.