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Neal, Chevy Mechanic
Category: Chevy
Satisfied Customers: 8351
Experience:  Shop Owner and Mechanic on multiple makes.
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Chevrolet Trailblazer LT how do i change a heater core in

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how do i change a heater core in a 2006 trailblazer?

Here is a step by step procedure.


Removal & Installation

  1. Remove the HVAC module-auxiliary.
  2. Remove the screws from heater core cover-auxiliary from the HVAC module-auxiliary.
  3. Remove the heater core cover-auxiliary.
  4. Remove the HVAC module pass thru seal-auxiliary.
  5. Remove the heater core-auxiliary from the HVAC module-auxiliary.


To install:

  1. Install the heater core-auxiliary to the HVAC module-auxiliary.
  2. Install the HVAC module pass thru seal-auxiliary.
  3. Install the heater core access cover-auxiliary to the HVAC module-auxiliary.
  4. Install the screws to the heater core access cover-auxiliary and tighten to 18 inch lbs. (2 Nm).
  5. Install the HVAC module-auxiliary.

Edited by Neal on 2/3/2011 at 6:10 PM EST
Neal and 2 other Chevy Specialists are ready to help you
Customer: replied 6 years ago.

Thanks, XXXXX XXXXX it a try.

Take your time and be careful and it should go well.

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