HEATER PROBLEM1989 BUICK CENTURY 6 CYL FRONT ...

1989 Buick Century

Tiny

susan powers

December, 29, 2007 AT 2:44 PM

Heater problem
1989 Buick Century 6 cyl Front Wheel Drive Automatic 130000 miles

how do I replace the heater core?

FOUND 491 RELATED QUESTIONS

1 Answer

Tiny

fairracing31

December, 30, 2007 AT 12:45 AM

1. Disconnect the negative battery cable and drain the cooling system.
2. Disconnect the heater hoses from the heater core inlet and outlet connections in the engine compartment
3. Inside vehicle, remove the lower instrument panel sound insulator
4. Remove the heater floor outlet duct screws or clips and remove duct


http://www.2carpros.com/forum/automotive_pictures/103836_heat1_1.jpg


Remove the heater floor outlet screws


http://www.2carpros.com/forum/automotive_pictures/103836_heat2_1.jpg


.....then remove the heater floor outlet duct
5. Remove the heater core cover by removing the attaching screws and clips
6. Remove heater core cover
7. Remove the heater core retainers and remove heater core.


http://www.2carpros.com/forum/automotive_pictures/103836_heat3_1.jpg


Remove the mounting bolts which retain the heater core.


http://www.2carpros.com/forum/automotive_pictures/103836_heat4_1.jpg



http://www.2carpros.com/forum/automotive_pictures/103836_heat5_1.jpg



http://www.2carpros.com/forum/automotive_pictures/103836_heat5_2.jpg


Heater core

Have a GREAT New Year's :D

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