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Home >> Jeep Truck >> 2009 >> Commander 4WD V8-4.7L >> Repair and Diagnosis >> Heating and Air Conditioning >> Housing Assembly HVAC >> Service and Repair >> Overhaul >> Disassembly >> Front Air Distribution Housing

Front Air Distribution Housing






HOUSING-AIR DISTRIBUTION

NOTE: The air distribution housing must be removed from the HVAC housing and disassembled for service of the mode-air and blend-air doors.





1. Remove the air distribution housing (1) from the HVAC housing and place it on a workbench .
2. Remove the screws (2) that secure the blend door actuator (4) and the mode door actuator (7) to the left side of the air distribution housing and remove the actuators.
3. Remove the screws (3 and 6) that secure the blend door actuator mounting bracket (5) and the mode door actuator mounting bracket (8) to the left side of the air distribution housing and remove the mounting brackets.





4. Using a flat bladed tool, remove the upper defrost/panel door pivot gear (1), front floor door pivot gear (4) and the blend door stop (5) from the left side of the air distribution housing (3).
5. Remove the upper defrost/panel door linkage rod (8) and the mode door cam (7) from the air distribution housing.
6. Remove the lower defrost/panel door pivot gear (2) and the front floor door linkage rod (6) from the air distribution housing.
7. On RHD models carefully pull the heater core out of the left side of the air distribution housing.





8. Remove the screws (1) that secure the rear floor/console door actuator (2) to the right side of the air distribution housing (3) and remove the actuator.
9. If equipped with dual zone heating-A/C, remove the screws (6) that secure the blend door actuator (7) to the right side of the air distribution housing and remove the actuator.
10. If equipped with dual zone heating-A/C, remove the screws (4) that secure the blend door actuator mounting bracket (5) to the right side of the air distribution housing and remove the mounting bracket.





11. On LHD models equipped with dual zone heating-A/C, remove the blend door stop (1) from the right side of the air distribution housing (2).
12. On LHD models carefully pull the heater core (3) out of the right side of the air distribution housing.





13. Carefully cut the foam seal (1) along the parting line (2) of the two halves of the air distribution housing (3). If the seal is deformed or damaged, it must be replaced.
14. Remove the 4 metal clips (4) that secure the two halves of the air distribution housing together.
15. Remove the eight screws (5) that secure the two halves of the air distribution housing together.





16. Carefully separate the left half of the air distribution housing (1) from the right half of the air distribution housing (2).
17. Remove the center partition (3) from the distribution housing.






NOTE: If the seal on any air door is deformed or damaged, the air door must be replaced.

18. If required, remove the front floor air doors (1 and 3) from the center partition (2) by disengaging the retaining tabs (4) and pulling the air doors apart from each other.






NOTE: If the seal on any air door is deformed or damaged, the air door must be replaced.

19. Remove the upper defrost/panel-air door (1), lower defrost/panel-air door (2), directional vane (3), rear outlet-air door (4) and the blend-air door (5) from the right side air distribution housing (6) as required.






NOTE: If the seal on any air door is deformed or damaged, the air door must be replaced.

20. Remove the upper defrost/panel-air door (1), lower defrost/panel-air door (2), directional vane (3) and the blend-air door (4) from the left side air distribution housing (5) as required.

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