Caliber 2007

Heater Core

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Removal & Installation




NOTE
The HVAC housing assembly must be removed from vehicle for service of the heater core.



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Fig. Typical model with A/C

  1. Remove the HVAC housing assembly and place it on a workbench.
  2.  
  3. Remove the left side front floor duct.
    NOTE
    If the foam seal for the flange is deformed or damaged, it must be replaced.

  4.  
  5. Remove the foam seal (1) from the flange (2) located on the front of the HVAC housing (9).
  6.  
  7. Remove the screw (10) that secures the flange to the front of the HVAC housing and remove the flange.
  8.  
  9. Remove the screw (3) that secures the retaining bracket (4) for the heater core tubes (8) to the left side of the air distribution housing (5).
  10.  
  11. Carefully pull the heater core (6) out of the driver side of the air distribution housing.
  12.  

To install:

  1. Carefully install the heater core (6) into the left side of the air distribution housing (5).
  2.  
  3. Install the retaining bracket (4) and screw (3) that secure the heater core tubes (8). Tighten the screw to 1.2 N·m (10 in. lbs.)
  4.  
  5. Install the flange (2) that secures the heater core tubes to the front of the HVAC housing.
  6.  
  7. Install the screw (10) that secures the flange to the HVAC housing. Tighten the screw to 1.2 N·m (10 in. lbs.).
    NOTE
    If the foam seal for the flange is deformed or damaged, it must be replaced.

  8.  
  9. Install the foam seal (1) onto the flange.
  10.  
  11. Install the left side front floor duct.
    NOTE
    If the heater core is being replaced, flush the cooling system.

  12.  
  13. Install the HVAC housing assembly.
  14.  

 
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