you have to take the dash easyout to get to the heater core box . Its a two man job and is not easy.
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coolant on the floor
You have to completely remove the dash to get access to the heater core.
cost to replace heater core 1994 corsica
To change the heater core on a 1999 Chevy 4-wheel drive, first remove the dashboard and drain the coolant. Unbolt the core from its mounts and remove the dash panel to be able to change the heater core.
How do you change a heater core in 1994 chevy astro van?
The heater core resembles a small radiator.
heater core on a chev is against the fire wall under the hood on the right side of vehicle
How to change a heater core on a 1997 Pontiac grand am