2002 JEEP GRAND CHEROKEE Heating & Air Conditioning

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Page 2112 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual controlled vehicle accessories during periods of low
engine vacuum such as when the vehicle is climbing
a steep grade, or under other high engine load oper-
ating conditions.
The vacuum reservoir cann

Page 2118 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual HVAC HOUSING
REMOVAL
The HVAC housing assembly must be removed
from the vehicle and the two halves of the housing
separated for service access of the heater core, evap-
orator coil, blend door(s), and

Page 2119 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (14) Remove the HVAC housing from the vehicle,
ensuring that the interior is covered in case of loss of
fluids.
DISASSEMBLY
(1) Remove the HVAC housing from the vehicle.
(Refer to 24 - HEATING & AIR C

Page 2122 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual NOTE: The blend door sub-assembly is attached to
the housing with 2 screws, and may be removed for
service (Fig. 19).
ASSEMBLY
(1) Place the top half of the HVAC housing on the
bottom half. Be certain

Page 2123 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE)
(13) Charge the refrigerant system. (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE)
(14) Inst

Page 2124 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (2) Pinch the retention tabs holding the panel out-
let door pivot shaft to the case. The 3 plastic tabs,
located on the inside of the case, are part of the shaft
retainer (Fig. 21).
(3) Using a trim

Page 2126 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual INSTALLATION
INSTALLATION - PANEL OUTLET DOOR
(1) Snap the panel outlet door pivot shaft retainer
on the pivot shaft.
(2) Attach the panel outlet door pivot shaft to the
HVAC case.
(3) Reassemble the

Page 2127 of 2199

JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual (5) Raise the front of the door sub-assembly while
releasing the 2 tabs holding the rear to the main
housing, and remove the recirculation door housing.
(6) Remove the electric/vacuum actuator from th