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Could be,low on coolant, faulty thermostat, plugged heater core, temp blend door malfunction,
the heater core is accessed from under the hood it is a nasty time consuming task. lift the hood and see the heater assembly against firewall. remove all that to get at the heater core
You disconnect the hoses. Then remove the heater core cover from the engine compartment (oblong black thing bolted to the firewall on your left hand side, looking in). Wrestle that off and extract the heater core...swap out your new core and replace it all. It is that easy. I put in a coolant flush kit while I had it apart...flush your coolant system every few months for nothing. Good luck
It should be behind the rear vent.
You can access the heater core from the passenger side kick plate in your 1964 Chevrolet Corvette. Remove the heater core water supply hoses. Remove the heater core retaining bolts. The heater core will come out.
i have a 62 cadillac,how do you remove the heater core
You can do this without completely removing the dash. Just remove all the screws then remove the support bar underneath the passenger side of the dash. This should give you enough wiggle room to get the core out.
Remove the water from the cooling system. Remove the water hose from the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
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 1988 Chevy cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. The heater core will come out.
Remove the center console remove the floor vent remove the heater core cover the heater core is right under the climate control unit remove the two screws that hold the heater core in place, open the hood and remove the heater hose from the heater core lines, now go inside and pull out the old heater core you don't have to remove the whole dash just the front of it
Begin by removing the water supply lines from your Nissan heater core. Remove the heater core retaining bolts. The heater core will come out.