1989 Buick Century

1989 BUICK CENTURY
130,000 MILES • 6 CYL • FWD • AUTOMATIC
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SUSAN POWERS
  • MEMBER
  • 1 POST
how do i replace the heater core?
Dec 29, 2007 at 2:44 PM
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FAIRRACING31
  • ASE Certified Mechanic
  • 150 POSTS
  • ASE Certified Mechanic
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


https://images.2carpros.com/forum/automotive_pictures/103836_heat1_1.jpg

Remove the heater floor outlet screws


https://images.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.


https://images.2carpros.com/forum/automotive_pictures/103836_heat3_1.jpg

Remove the mounting bolts which retain the heater core.


https://images.2carpros.com/forum/automotive_pictures/103836_heat4_1.jpg


https://images.2carpros.com/forum/automotive_pictures/103836_heat5_1.jpg


https://images.2carpros.com/forum/automotive_pictures/103836_heat5_2.jpg

Heater core Have a GREAT New Year's :D
Dec 30, 2007 at 12:45 AM
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