very carefully
YOU CAN'T, you will have to replace the heater core itself with a new one.
Answernot hard
how to change heater core in 98 suburban
== ==
comes out inside . remove glovebox and go in that way . about one hour .
Drain the water from your 1990 Chevy Corsica cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
To replace the heater core on a 1990 Chevy Caprice, begin by disconnecting the negative battery cable and draining the coolant. Remove the dashboard and any components obstructing access to the heater core, such as the center console and the climate control housing. Disconnect the heater core hoses from the engine bay, then unbolt the heater core from the housing and replace it with the new unit. Reassemble everything in reverse order, refill the coolant, and check for leaks.
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.
How do you replace the heater core on a jimmy?
Take out the whole dash and then the heater core should be behind the glove box on the passenger side.
The heater core on a 1985 Chevy Suburban is located under the dashboard on the passenger side of the vehicle. The glove compartment may have to be removed to access the heater core.
how do u replace the heater core