Nissan_Armada_2004-2005

Heater Core

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Removal & Installation




NOTE
Before servicing, or working around, the SRS system, turn the ignition switch OFF, disconnect both battery cables and wait at least three minutes. When servicing, or working around, the SRS system do not work directly in front of the air bag module.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Discharge the refrigerant from the A/C system.
  4.  
  5. Drain the cooling system.

    Click image to see an enlarged view

    Fig. Exploded view of the cowl top



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    Fig. Exploded view of the exhaust system



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    Fig. Exploded view of the instrument panel

  6.  
  7. Remove or disconnect the following:

    Negative battery cable
     
    Wiper arms
     
    Cowl top seal
     
    Cowl top extension brackets
     
    Wiper motor and connecting rod linkage
     
    Windshield washer hose
     
    Cowl top extension
     
    Exhaust system
     
    Front heater hoses from front heater core
     
    Pressure pipes from the front expansion valve
     
    Right-hand lower instrument panel
     
    Transmission shifter
     
    Center console
     
    Steering column
     
    Left-hand lower instrument panel
     
    Gauge cluster front and top cover
     
    Instrument gauge cluster
     
    Defroster grille
     
    Optical sensor
     
    Side ventilator assemblies
     
    A-pillar trim
     
    Instrument panel electrical connections
     
    Instrument panel
     

  8.  
  9. Disconnect the steering member from each side of the vehicle body.
  10.  
  11. Remove the front heater and cooling unit assembly with it attached to the steering member.
  12.  
  13. Remove the heater unit assembly from the steering member.
  14.  
  15. Remove the upper bracket from the heater assembly.
  16.  
  17. Remove the heater core cover.
  18.  
  19. Remove the heater core.
  20.  
  21. Installation is the reverse orders of removal.

    Click image to see an enlarged view

    Fig. Front heater/AC assembly

  22.  

 
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