2002 JEEP LIBERTY oil type

WARNING: IF THE VEHICLE IS EQUIPPED WITH AIR
CONDITIONING, REVIEW THE WARNINGS AND
CAUTIONS IN THE FRONT OF THIS SECTION
BEFORE PERFORMING THE FOLLOWING OPERA-
TION. (Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - WARNING) (Refer to 24 - HEATING &
AIR CONDITIONING/PLUMBING - CAUTION)
(1) Remove the HVAC housing. (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - REMOVAL).
(2) Remove the two heater core retaining screws (if
equipped). (Fig. 14).
(3) Gently push back on two of the heater core
retaining tabs and pull up on heater core to remove.
INSTALLATION
WARNING: IF THE VEHICLE IS EQUIPPED WITH AIR
CONDITIONING, REVIEW THE WARNINGS AND
CAUTIONS IN THE FRONT OF THIS SECTION
BEFORE PERFORMING THE FOLLOWING OPERA-
TION. (Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - WARNING) (Refer to 24 - HEATING &AIR CONDITIONING/PLUMBING - CAUTION) (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
CAUTION - REFRIGERANT HOSES/LINES/TUBES
PRECAUTIONS)
(1) Install the heater core into the top of the
HVAC housing.
(2) Push on top of heater core until all for tabs are
locked into place.
(3) Install the two heater core retainer screws.
(4) Install the HVAC housing. (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION)
REFRIGERANT
DESCRIPTION
The refrigerant used in this air conditioning sys-
tem is a HydroFluoroCarbon (HFC), type R-134a.
Unlike R-12, which is a ChloroFluoroCarbon (CFC),
R-134a refrigerant does not contain ozone-depleting
chlorine. R-134a refrigerant is a non-toxic, non-flam-
mable, clear, and colorless liquefied gas.
Even though R-134a does not contain chlorine, it
must be reclaimed and recycled just like CFC-type
refrigerants. This is because R-134a is a greenhouse
gas and can contribute to global warming.
OPERATION
R-134a refrigerant is not compatible with R-12
refrigerant in an air conditioning system. Even a
small amount of R-12 added to an R-134a refrigerant
system will cause compressor failure, refrigerant oil
sludge or poor air conditioning system performance.
In addition, the PolyAlkylene Glycol (PAG) synthetic
refrigerant oils used in an R-134a refrigerant system
are not compatible with the mineral-based refriger-
ant oils used in an R-12 refrigerant system.
R-134a refrigerant system service ports, service
tool couplers and refrigerant dispensing bottles have
all been designed with unique fittings to ensure that
an R-134a system is not accidentally contaminated
with the wrong refrigerant (R-12). There are also
labels posted in the engine compartment of the vehi-
cle and on the compressor identifying to service tech-
nicians that the air conditioning system is equipped
with R-134a.
REFRIGERANT OIL
DESCRIPTION
The refrigerant oil used in R-134a refrigerant sys-
tems is a synthetic-based, PolyAlkylene Glycol (PAG),
wax-free lubricant. Mineral-based R-12 refrigerant
Fig. 14 HEATER CORE REMOVAL/INSTALLATION
1 - HEATER CORE
2- MOUNTING SCREW HOLE
3- INLET AND OUTLET TUBES
4- VACUUM HARNESS
5- ACTUATOR SCREWS (3)
6- ELECTRIC BLEND DOOR ACTUATOR
7- MOUNTING SCREW HOLE
8- HEATER CORE RETAINER TABS (4)
KJPLUMBING 24 - 53
HEATER CORE (Continued)

oils are not compatible with PAG oils, and should
never be introduced to an R-134a refrigerant system.
There are different PAG oils available, and each
contains a different additive package. The PXF±18
compressor used in this vehicle is designed to use an
SP±10 PAG refrigerant oil. Use only refrigerant oil of
this same type to service the refrigerant system.
OPERATION
After performing any refrigerant recovery or recy-
cling operation, always replenish the refrigerant sys-
tem with the same amount of the recommended
refrigerant oil as was removed. Too little refrigerant
oil can cause compressor damage, and too much can
reduce air conditioning system performance.
PAG refrigerant oil is much more hygroscopic than
mineral oil, and will absorb any moisture it comes
into contact with, even moisture in the air. The PAG
oil container should always be kept tightly capped
until it is ready to be used. After use, recap the oil
container immediately to prevent moisture contami-
nation.
STANDARD PROCEDURE - REFRIGERANT OIL
LEVEL
When an air conditioning system is assembled at
the factory, all components except the compressor are
refrigerant oil free. After the refrigerant system has
been charged and operated, the refrigerant oil in the
compressor is dispersed throughout the refrigerant
system. The accumulator, evaporator, condenser, and
compressor will each retain a significant amount of
the needed refrigerant oil.
It is important to have the correct amount of oil in
the refrigerant system. This ensures proper lubrica-tion of the compressor. Too little oil will result in
damage to the compressor. Too much oil will reduce
the cooling capacity of the air conditioning system.
It will not be necessary to check the oil level in the
compressor or to add oil, unless there has been an oil
loss. An oil loss may occur due to a rupture or leak
from a refrigerant line, a connector fitting, a compo-
nent, or a component seal. If a leak occurs, add 30
milliliters (1 fluid ounce) of refrigerant oil to the
refrigerant system after the repair has been made.
Refrigerant oil loss will be evident at the leak point
by the presence of a wet, shiny surface around the
leak.
Refrigerant oil must be added when a accumulator,
evaporator coil, or condenser are replaced. See the
Refrigerant Oil Capacities chart. When a compressor
is replaced, the refrigerant oil must be drained from
the old compressor and measured. Drain all of the
refrigerant oil from the new compressor, then fill the
new compressor with the same amount of refrigerant
oil that was drained out of the old compressor.
Refrigerant Oil Capacities
Component ml fl oz
A/C System 240 8
Accumulator 90 3
Condenser 22 .75
Evaporator 45 1.5
Compressordrain and measure
the oil from the old
compressor as noted
24 - 54 PLUMBINGKJ
REFRIGERANT OIL (Continued)

FLUID DRAIN AND FILL - STANDARD
PROCEDURE.................21-208,21-246
FLUID FILL/CHECK LOCATIONS -
DESCRIPTION.........................0-4
FLUID INDICATOR - DESCRIPTION,
WASHER...........................8J-35
FLUID INDICATOR - DIAGNOSIS AND
TESTING, WASHER...................8J-36
FLUID INDICATOR - OPERATION,
WASHER...........................8J-36
FLUID LEAK - DIAGNOSIS AND TESTING,
CONVERTER HOUSING................21-80
FLUID LEVEL - DIAGNOSIS AND
TESTING, EFFECTS OF INCORRECT......21-125
FLUID LEVEL - STANDARD
PROCEDURES, MASTER CYLINDER.......5-26
FLUID LEVEL CHECK - STANDARD
PROCEDURE.......................21-126
FLUID LEVEL SWITCH - DESCRIPTION,
WASHER...........................8R-17
FLUID LEVEL SWITCH - INSTALLATION,
WASHER...........................8R-18
FLUID LEVEL SWITCH - OPERATION,
WASHER...........................8R-17
FLUID LEVEL SWITCH - REMOVAL,
WASHER...........................8R-17
FLUID RESERVOIR - INSTALLATION.......5-26
FLUID RESERVOIR - REMOVAL..........5-26
FLUID, SPECIFICATIONS - BRAKE.........5-27
FLUID TYPES - DESCRIPTION.............0-1
FLUSH - SPECIFICATIONS, GAP........23-116
FLUSHING - STANDARD PROCEDURE,
COOLING SYSTEM - REVERSE...........7-12
FLYWHEEL - DESCRIPTION...............6-7
FLYWHEEL - DIAGNOSIS AND TESTING.....6-8
FLYWHEEL - OPERATION................6-7
FOG LAMP BULB - INSTALLATION,
FRONT.............................8L-22
FOG LAMP BULB - REMOVAL, FRONT....8L-21
FOG LAMP INDICATOR - DESCRIPTION,
FRONT.............................8J-19
FOG LAMP INDICATOR - DESCRIPTION,
REAR..............................8J-27
FOG LAMP INDICATOR - OPERATION,
FRONT.............................8J-19
FOG LAMP INDICATOR - OPERATION,
REAR..............................8J-27
FOG LAMP RELAY - DESCRIPTION,
FRONT.............................8L-22
FOG LAMP RELAY - DESCRIPTION, REAR . 8L-56
FOG LAMP RELAY - DIAGNOSIS AND
TESTING, FRONT.....................8L-23
FOG LAMP RELAY - DIAGNOSIS AND
TESTING, REAR......................8L-57
FOG LAMP RELAY - INSTALLATION,
FRONT.............................8L-24
FOG LAMP RELAY - INSTALLATION,
REAR..............................8L-58
FOG LAMP RELAY - OPERATION, FRONT . . 8L-22
FOG LAMP RELAY - OPERATION, REAR . . . 8L-57
FOG LAMP RELAY - REMOVAL, FRONT . . . 8L-24
FOG LAMP RELAY - REMOVAL, REAR....8L-58
FOG LAMP UNIT - ADJUSTMENT, FRONT . . 8L-25
FOG LAMP UNIT - INSTALLATION,
FRONT.............................8L-25
FOG LAMP UNIT - REMOVAL, FRONT.....8L-25
FOLDING REAR SEAT BACK LATCH /
LOCK - INSTALLATION
...............23-170
FOLDING REAR SEAT BACK LATCH /
LOCK - REMOVAL
...................23-170
FOUR LOW MODE INDICATOR -
DESCRIPTION
.......................8J-29
FOUR LOW MODE INDICATOR -
OPERATION
.........................8J-30
FRAME - REAR - INSTALLATION, SEAT
BACK
.............................23-171
FRAME - REAR - REMOVAL, SEAT BACK
. 23-171
FRAME DIMENSIONS - SPECIFICATIONS
. . . 13-3
FRONT - DESCRIPTION
..................2-7
FRONT - INSTALLATION, CRANKSHAFT
OIL SEAL
............................9-47
FRONT - INSTALLATION, PROPELLER
SHAFT
...............................3-6
FRONT - INSTALLATION, SEAT
.........23-165
FRONT - INSTALLATION, SEAT BACK
....23-166
FRONT - INSTALLATION, SEAT BACK
COVER
............................23-167FRONT - INSTALLATION, SEAT BACK
CUSHION..........................23-167
FRONT - INSTALLATION, SEAT BACK
RECLINER.........................23-166
FRONT - INSTALLATION, SEAT CUSHION . 23-167
FRONT - INSTALLATION, SEAT CUSHION
COVER............................23-167
FRONT - REMOVAL, CRANKSHAFT OIL
SEAL...............................9-46
FRONT - REMOVAL, PROPELLER SHAFT....3-6
FRONT - REMOVAL, SEAT.............23-165
FRONT - REMOVAL, SEAT BACK........23-166
FRONT - REMOVAL, SEAT BACK COVER . . 23-166
FRONT - REMOVAL, SEAT BACK
CUSHION..........................23-167
FRONT - REMOVAL, SEAT BACK
RECLINER.........................23-166
FRONT - REMOVAL, SEAT CUSHION.....23-167
FRONT - REMOVAL, SEAT CUSHION
COVER............................23-167
FRONT - WARNING.....................2-7
FRONT AXLE - 186FIA - ADJUSTMENTS....3-25
FRONT AXLE - 186FIA - DESCRIPTION.....3-19
FRONT AXLE - 186FIA - INSTALLATION....3-24
FRONT AXLE - 186FIA - OPERATION......3-19
FRONT AXLE - 186FIA - REMOVAL........3-24
FRONT AXLE - SPECIFICATIONS..........3-33
FRONT AXLE, SPECIAL TOOLS...........3-34
FRONT BRAKE HOSE - INSTALLATION.......5-10
FRONT BRAKE PADS - INSTALLATION.....5-11
FRONT BRAKE PADS - REMOVAL.........5-11
FRONT CHECK VALVE - DESCRIPTION.....8R-8
FRONT CHECK VALVE - INSTALLATION....8R-9
FRONT CHECK VALVE - OPERATION.......8R-9
FRONT CHECK VALVE - REMOVAL........8R-9
FRONT DOOR OUTER BELT MOLDING -
INSTALLATION......................23-186
FRONT DOOR OUTER BELT MOLDING -
REMOVAL.........................23-186
FRONT FASCIA - INSTALLATION..........13-2
FRONT FASCIA - REMOVAL..............13-1
FRONT FENDER - INSTALLATION.......23-141
FRONT FENDER - REMOVAL...........23-141
FRONT FOG LAMP BULB -
INSTALLATION.......................8L-22
FRONT FOG LAMP BULB - REMOVAL.....8L-21
FRONT FOG LAMP INDICATOR -
DESCRIPTION.......................8J-19
FRONT FOG LAMP INDICATOR -
OPERATION.........................8J-19
FRONT FOG LAMP RELAY -
DESCRIPTION.......................8L-22
FRONT FOG LAMP RELAY - DIAGNOSIS
AND TESTING.......................8L-23
FRONT FOG LAMP RELAY -
INSTALLATION.......................8L-24
FRONT FOG LAMP RELAY - OPERATION . . 8L-22
FRONT FOG LAMP RELAY - REMOVAL....8L-24
FRONT FOG LAMP UNIT - ADJUSTMENT . . 8L-25
FRONT FOG LAMP UNIT - INSTALLATION . . 8L-25
FRONT FOG LAMP UNIT - REMOVAL.....8L-25
FRONT HOSE - REMOVAL................5-9
FRONT IMPACT SENSOR - DESCRIPTION . 8O-21
FRONT IMPACT SENSOR -
INSTALLATION......................8O-22
FRONT IMPACT SENSOR - OPERATION . . . 8O-21
FRONT IMPACT SENSOR - REMOVAL....8O-22
FRONT LAMP BULB - INSTALLATION.....8L-27
FRONT LAMP BULB - REMOVAL.........8L-26
FRONT LAMP UNIT - INSTALLATION.....8L-28
FRONT LAMP UNIT - REMOVAL.........8L-27
FRONT MOUNT - INSTALLATION..........9-57
FRONT MOUNT - REMOVAL.............9-56
FRONT OUTPUT SHAFT SEAL -
INSTALLATION................21-208,21-246
FRONT OUTPUT SHAFT SEAL -
REMOVAL...................21-208,21-246
FRONT POSITION LAMP BULB -
INSTALLATION.......................8L-28
FRONT POSITION LAMP BULB -
REMOVAL
..........................8L-28
FRONT SEAL - INSTALLATION, OIL
PUMP
............................21-152
FRONT SEAL - REMOVAL, OIL PUMP
....21-152
FRONT SEAT BELT & RETRACTOR -
INSTALLATION
......................8O-24
FRONT SEAT BELT & RETRACTOR -
REMOVAL
..........................8O-23FRONT SEAT BELT BUCKLE -
INSTALLATION......................8O-26
FRONT SEAT BELT BUCKLE - REMOVAL . . 8O-25
FRONT SKID PLATE - INSTALLATION......13-6
FRONT SKID PLATE - REMOVAL..........13-6
FRONT SUSPENSION, SPECIAL TOOLS.....2-8
FRONT TOW HOOK - INSTALLATION......13-8
FRONT TOW HOOK - REMOVAL..........13-8
FRONT WASHER HOSES/TUBES -
DESCRIPTION.......................8R-10
FRONT WASHER HOSES/TUBES -
OPERATION.........................8R-10
FRONT WASHER NOZZLE -
DESCRIPTION.......................8R-11
FRONT WASHER NOZZLE -
INSTALLATION......................8R-11
FRONT WASHER NOZZLE - OPERATION . . . 8R-11
FRONT WASHER NOZZLE - REMOVAL....8R-11
FRONT WHEEL OPENING FLARE
MOLDINGS - INSTALLATION...........23-145
FRONT WHEEL OPENING FLARE
MOLDINGS - REMOVAL..............23-145
FRONT WHEEL SPEED SENSOR -
INSTALLATION........................5-34
FRONT WHEEL SPEED SENSOR -
REMOVAL...........................5-34
FRONT WHEELHOUSE SPLASH SHIELD -
INSTALLATION......................23-143
FRONT WHEELHOUSE SPLASH SHIELD -
REMOVAL.........................23-143
FRONT WIPER & WASHER SYSTEM -
CLEANING...........................8R-7
FRONT WIPER & WASHER SYSTEM -
DIAGNOSIS AND TESTING..............8R-6
FRONT WIPER & WASHER SYSTEM -
INSPECTION.........................8R-7
FRONT WIPER ARM - DESCRIPTION.....8R-12
FRONT WIPER ARM - INSTALLATION.....8R-13
FRONT WIPER ARM - OPERATION.......8R-12
FRONT WIPER ARM - REMOVAL........8R-12
FRONT WIPER BLADE - DESCRIPTION....8R-13
FRONT WIPER BLADE - INSTALLATION . . . 8R-14
FRONT WIPER BLADE - OPERATION.....8R-14
FRONT WIPER BLADE - REMOVAL.......8R-14
FRONT WIPER MODULE - DESCRIPTION . . 8R-15
FRONT WIPER MODULE - INSTALLATION . 8R-16
FRONT WIPER MODULE - OPERATION....8R-15
FRONT WIPER MODULE - REMOVAL.....8R-16
FRONT WIPERS/WASHERS -
DESCRIPTION........................8R-2
FRONT WIPERS/WASHERS - OPERATION . . 8R-4
FRONT WIPER/WASHER SWITCH -
DESCRIPTION.......................8R-16
FRONT WIPER/WASHER SWITCH -
OPERATION.........................8R-16
FUEL DELIVERY - DESCRIPTION..........14-2
FUEL DELIVERY - OPERATION...........14-3
FUEL FILL DOOR/HOUSING -
INSTALLATION......................23-141
FUEL FILL DOOR/HOUSING - REMOVAL . . 23-141
FUEL FILLER CAP - DESCRIPTION.......25-27
FUEL FILLER CAP - OPERATION.........25-27
FUEL FILTER - DESCRIPTION............14-7
FUEL FILTER - INSTALLATION............14-8
FUEL FILTER - REMOVAL...............14-7
FUEL GAUGE - DESCRIPTION...........8J-19
FUEL GAUGE - OPERATION.............8J-20
FUEL INDICATOR - DESCRIPTION, LOW
. . . 8J-22
FUEL INDICATOR - OPERATION, LOW
.....8J-22
FUEL INJECTION - DESCRIPTION
........14-29
FUEL INJECTOR - DESCRIPTION
.........14-33
FUEL INJECTOR - DIAGNOSIS AND
TESTING
...........................14-33
FUEL INJECTOR - OPERATION
..........14-33
FUEL LEVEL SENDING UNIT -
DIAGNOSIS AND TESTING
..............14-9
FUEL LEVEL SENDING UNIT / SENSOR -
DESCRIPTION
........................14-9
FUEL LEVEL SENDING UNIT / SENSOR -
INSTALLATION
.......................14-10
FUEL LEVEL SENDING UNIT / SENSOR -
OPERATION
..........................14-9
FUEL LEVEL SENDING UNIT / SENSOR -
REMOVAL
...........................14-9
FUEL LINES - DESCRIPTION
............14-10
FUEL PRESSURE LEAK DOWN TEST -
DIAGNOSIS AND TESTING
..............14-3
10 INDEXKJ
Description Group-Page Description Group-Page Description Group-Page