Jeep Grand Cherokee WK. Manual — part 1771
12. Remove the seven screws (1) that secure the air
distribution housing (2) to the HVAC housing (3).
13. Release the locking tabs located at the top of the
distribution housing and tilt the distribution hous-
ing downward to disengage the tab-and-slot type
retainers located at the bottom of the housing.
14. Remove the air distribution housing from the
HVAC housing.
15. If required, disassemble the air distribution hous-
ing (Refer to 24 - HEATING & AIR CONDITION-
ING/DISTRIBUTION/HOUSING-HVAC
-
AIR
DISTRIBUTION HOUSING - DISASSEMBLY).
AIR INLET HOUSING
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering
wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the
negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before
performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to
take the proper precautions could result in accidental airbag deployment and possible personal injury or
death.
NOTE: The air inlet housing must be removed from HVAC housing and disassembled for service of the
recirculation-air door.
1. Remove the HVAC housing assembly (Refer to 24
- HEATING & AIR CONDITIONING/DISTRIBU-
TION/HOUSING-HVAC - HVAC HOUSING ASSEM-
BLY - REMOVAL).
2. Disconnect the HVAC wire harness (1) from the
recirculation door actuator (2).
3. Remove the three screws (3) that secure the air
inlet housing (4) to HVAC housing (5).
4. Tilt the rear of the air inlet housing upward to dis-
engage the two tab-and-slot type retainers located
at the front of the inlet housing and remove the
inlet housing from the HVAC housing.
NOTE: If the foam seal on the air inlet housing is
deformed or damaged, it must be replaced.
5. If required, disassemble the air inlet housing (Refer
to 24 - HEATING & AIR CONDITIONING/DISTRI-
24 - 432
DISTRIBUTION
WK
BUTION/HOUSING-HVAC - AIR INLET HOUSING - DISASSEMBLY).
HVAC HOUSING ASSEMBLY
WARNING: Refer to the applicable warnings and cautions for this system before performing the following
operation (Refer to 24 - HEATING & AIR CONDITIONING/PLUMBING - WARNINGS) and (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAUTIONS). Failure to follow the warnings and cautions could result
in possible personal injury or death.
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering
wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the
negative battery (ground) cable, then wait two minutes for the airbag system capacitor to discharge before
performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to
take the proper precautions could result in accidental airbag deployment and possible personal injury or
death.
NOTE: The HVAC housing assembly must be removed from the vehicle and disassembled for service of the
air inlet housing, air distribution housing and the A/C evaporator.
NOTE: Take the proper precautions to protect the front face of the instrument panel from cosmetic damage
while performing this procedure.
1. Recover the refrigerant from the refrigerant system
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING
-
STANDARD
PROCEDURE
-
REFRIGERANT SYSTEM RECOVERY).
2. Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOL-
ING SYSTEM DRAIN).
3. Disconnect and isolate the negative battery cable.
4. Remove the front floor console (Refer to 23 -
BODY/INTERIOR/FLOOR
CONSOLE
-
REMOVAL).
5. Remove the instrument panel (Refer to 23 - BODY/
INSTRUMENT
PANEL/INSTRUMENT
PANEL
ASSEMBLY - REMOVAL).
6. Disengage the push-pin retainer (1) that secures
the front console duct (2) to the gear selector (3).
7. Disconnect the front console duct from the air dis-
tribution housing (4) and remove the console duct.
8. Remove the screws (5) that secure the gear selector to the floor panel (6) and position the gear selector out of
the way.
WK
DISTRIBUTION
24 - 433
9. Disconnect the left rear floor duct (1) and the right
rear floor duct (2) from the rear floor distribution
duct (3).
10. Disconnect the rear floor distribution duct from the
air distribution housing (4) and remove the distri-
bution duct.
11. Disconnect the right front floor duct (5) and the left
front floor duct (6) from the air distribution housing
and remove the floor ducts.
12. Remove the nut (1) that secures the HVAC hous-
ing assembly (2) to the passenger side of the
dash panel (3).
24 - 434
DISTRIBUTION
WK
13. Disconnect the A/C liquid line and the A/C suction
line from the A/C evaporator (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING/LINE-A/C
LIQUID - REMOVAL).
14. Disconnect the heater hoses from the heater core
tubes.
15. Remove the two bolts (1) that secure the HVAC
housing assembly (2) to the engine compartment
side of the dash panel (3).
16. Lift the HVAC housing assembly upwards so that
the condensate drain tube clears the floor panel
and remove the HVAC housing assembly from the
passenger compartment.
17. If
required,
disassemble
the
HVAC
housing
assembly (Refer to 24 - HEATING & AIR CONDI-
TIONING/DISTRIBUTION/HOUSING-HVAC
ASSEMBLY - DISASSEMBLY).
DISASSEMBLY
AIR DISTRIBUTION HOUSING
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 (Refer
to 24 - HEATING & AIR CONDITIONING/DISTRI-
BUTION/HOUSING-HVAC - AIR DISTRIBUTION
HOUSING - REMOVAL).
2. Remove the screws (2) that secure the blend door
actuator (4) and the mode door actuator (7) to the
driver 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 driver
side of the air distribution housing and remove the
mounting brackets.
WK
DISTRIBUTION
24 - 435
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