Question about 1989 Buick LeSabre
Toosharp2004, The easiet way to find what you are looking for is to follow the heater hoses from the engine. If they go through the fire wall then the core is located inside but if they end up at a box in the engine compartment then this is where you will find it. Based on the year of your car I think that GM put them inside under the dash in the middle. Good luck with this.
Posted on Apr 11, 2011
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Posted on Jan 02, 2017
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The heater core is removable from under the right side of the instrument panel.
Plug the heater core tubes to avoid spilling coolant in the passenger compartment during removal.
Exploded view of a common heater core and case assembly
If necessary, loosen and remove the under dash cabin light retaining bolt
With the bolt removed, the light and housing may be repositioned out of the way
On some early model vehicles, the cabin light mounted under the dash may interfere with cover removal. If necessary, loosen the retaining bolt and reposition the light housing with the wiring attached.
Be sure that all are removed before attempting to remove the cover. If necessary, unbolt and reposition all/part of the dashboard for better access.
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