Its located behind the dash on the passenger's side.
flush the heater core in both directions with water
check out auto zone site. enter your car make, has how to, with pictures.
underneath the dash board
replace heater core on 92 buick century
How do you install a heater core on a 1998 buick lesabre
How do I replace heater core on 98 Buick lesabre
whats does the radiator core looks like?
Remove the firewall. Where the 5/8 inch hoses go into the firewall is where your heater core is located. Lots of bolts and screws.
The heater core is mounted to the passenger side firewall on the 1988 Buick Electra 307. The blower motor needs to be removed to access the heater core.
Im asking how to change the heater core. I don't have the answer.
You can bypass your 1988 Buick Skylark heater core by removing the heater core water supply hoses. There will be to water hoses. Connect the water hoses to each other.
Near the firewall behind the engine, or under the dash near the heater core.