Heater core replacement

1993 OLDSMOBILE BRAVADA
75,000 MILES • 6 CYL • AWD • AUTOMATIC
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BOBETTE
  • MEMBER
  • 1 POST
Is it possible to replace the heater core without removing the dash? Can you give me the basic steps to go thru?
Feb 11, 2008 at 11:00 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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SQM
  • CAR REPAIR CONTRIBUTOR
  • 6,383 POSTS
Hello,

In order to remove the heater core, you will have to remove components from the bottom of the dash. That is the only way to access it.

Before taking out the heater core you want to first drain the coolant and remove the heater hoses from the fire wall.

Here is a helpful guide:

https://www.2carpros.com/articles/replace-heater-core

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.
Jan 16, 2022 at 12:48 PM
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