1. Diconnect the battery ground cable2. drain the cooling system and plug the water hoses from the heater connections3. Remove the air-distributor duct stud nuts on the firewall4. Remove the right instrument panel pad, rt hand dash board braces, center dash console duct and the floor outlet duct5. Remove the radio and center dashboard console6. Pull the distibtor duct from the firewall and remove the resitor wires when clearance is sufficient7. Remove the heater core retaining springs and remove the core8. If the core to case sealer was damaged during removal, replace with new sealer before installing new core
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Remove the water supply hoses from your 1993 Chevy Corvette heater core. Some water will drain out of the hoses and the heater core. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
Remove the heater core retaining bolts. Remove the heater core water supply hoses. The heater core will come out. You can access the heater core in your 1972 Chevrolet Corvette through the passenger side kick plate.
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.
Remove the heater core water supply hoses from your 1979 Chevy Corvette. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
Remove the passenger side kick plate in your 1978 Chevy Corvette. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
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Begin by removing the water supply hoses to your heater core. Remove the heater core retaining bolts. The heater core will come out. Reverse the process to install the new heater core.
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.
I would say that your heater core is ok...it sounds like you have a bled door promlem in the dash.
change out the heater core
how to change heater core in 98 suburban