Forenza 2007

Removal & Installation

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  1. Disconnect the negative battery cable.
  2.  
  3. Remove the instrument panel and tie-bar.
  4.  
  5. Drain the cooling system.
  6.  
  7. Compress the heater hose clamps at the firewall and slide the clamps toward the engine.
  8.  
  9. Remove the 2 heater hoses from the core pipes at the firewall.
  10.  
  11. Remove the screws that secure the heater/air distributor case assembly to the firewall on the side of the heater core pipes

    Click image to see an enlarged view

    Fig. Heater core housing screws

  12.  
  13. Remove the high-pressure and Low-pressure pipe from the A/C expansion valve.

    Click image to see an enlarged view

    Fig. Pipes to the A/C expansion valve

  14.  
  15. Remove the evaporator drain hose.
  16.  
  17. Have an assistant support the heater/air distributor case from inside the vehicle.
  18.  
  19. Remove the screws that secure the heater/air distributor case assembly to the firewall on the side of the evaporator.
  20.  
  21. Disconnect the rear duct connector.
  22.  
  23. Remove the heater/air distributor case assembly from the vehicle.

    Click image to see an enlarged view

    Fig. Heater case

  24.  
  25. Remove the wiring harness and electrical connectors from the heater/air distributor case assembly.
  26.  
  27. Remove the screws that connect the heater core housing and the evaporator housing.

    Click image to see an enlarged view

    Fig. Heater case removal from air distributor case

  28.  
  29. Separate the sponge from heater/air distributor case assembly.
  30.  
  31. Remove the air distributor case screws from the heater/air distributor case assembly.
  32.  
  33. Remove heater door.
  34.  

To install:

  1. Install heater door.
  2.  
  3. Install the air distributor case screws to the heater/air distributor case assembly.
  4.  
  5. Install the sponge to the heater/air distributor case assembly.
  6.  
  7. Install the screws that connect the heater core housing and the evaporator housing.
  8.  
  9. Install the wiring harness and electrical connectors to the heater/air distributor case assembly.
  10.  
  11. Install the heater/air distributor case assembly from the vehicle.
  12.  
  13. Connect the rear duct connector.
  14.  
  15. Have an assistant support the heater/air distributor case from inside the vehicle.
  16.  
  17. Install the screws that secure the heater/air distributor case assembly to the firewall on the side of the evaporator.
  18.  
  19. Install the evaporator drain hose.
  20.  
  21. Install the high-pressure and Low-pressure pipe to the A/C expansion valve.
  22.  
  23. Install the screws that secure the heater/air distributor case assembly to the firewall on the side of the heater core pipes
  24.  
  25. Install the 2 heater hoses from the core pipes at the firewall.
  26.  
  27. Compress the heater hose clamps at the firewall and slide the clamps toward the firewall.
  28.  
  29. Fill the cooling system.
  30.  
  31. Install the instrument panel and tie-bar.
  32.  
  33. Connect the negative battery cable.
  34.  

 
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