1998 DODGE RAM 1500 warning

HEATER INLET HOSE
REMOVAL
The heater inlet hose is constructed from rubber
hoses and plastic hose connectors. The ends are
secured to the heater core, engine and engine coolant
reservoir (depending on engine application) by spring
tension clamps.
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
(1) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM DRAIN).
(2) Remove the heater hose retaining brackets as
required (depending on engine application).
(3) Using spring tension clamp pliers, compress
and slide the clamps off of each end of the hose being
removed (Fig. 24).
CAUTION: DO NOT apply excessive pressure on
heater tubes or connections when removing heater
hoses. Excessive pressure may damage or deform
the tubes/heater core, causing an engine coolant
leak.
(4) Disconnect each hose end by carefully twisting
the hose back and forth on the tube, while gently
pulling it away from the end of the tube.
(5) If necessary, carefully cut the hose end and
peel the hose off of the tube.
NOTE: Replacement of the heater inlet hose will be
required if the hose ends are cut for removal.
(6) Remove the heater inlet hose from the engine
compartment.
(7) Separate the heater hoses from each other as
required (depending on engine application).
INSTALLATION
(1) If separated, reconnect the heater hoses to each
other as required (depending on engine application).
(2) Position the heater inlet hose into the engine
compartment.
(3) Using spring tension clamp pliers, compress
and slide each clamp away from the end of the hose
being installed.
(4) Install each hose by carefully twisting the hose
back and forth while gently pushing it onto the tube
end.(5) Using spring tension clamp pliers, compress
and slide the clamps onto each end of the hose being
installed.
(6) Install the heater hose retaining brackets as
required (depending on engine application).
(7) Refill the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM REFILL).
HEATER RETURN HOSE
REMOVAL
The heater return hose is constructed from rubber
hoses and plastic hose connectors. The ends are
secured to the heater core, engine and engine coolant
reservoir (depending on engine application) by spring
tension clamps.
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
Fig. 24 Heater Hoses - Typical
1 - HEATER CORE TUBES
2 - HEATER INLET HOSE
3 - RETAINING BRACKET
4 - HOSE CONNECTOR
5 - SPRING CLAMP
6 - HEATER RETURN HOSE
24 - 64 PLUMBINGDR

(1) Drain the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE - COOLING
SYSTEM DRAIN).
(2) Remove the heater hose retaining brackets as
required (depending on engine application).
(3) Using spring tension clamp pliers, compress
and slide the clamps off of each end of the hose being
removed (Fig. 25).
CAUTION: DO NOT apply excessive pressure on
heater tubes or connections when removing heater
hoses. Excessive pressure may damage or deform
the tubes/heater core, causing an engine coolant
leak.
(4) Disconnect each hose end by carefully twisting
the hose back and forth on the tube, while gently
pulling it away from the end of the tube.
(5) If necessary, carefully cut the hose end and
peel the hose off of the tube.
NOTE: Replacement of the heater return hose will
be required if the hose ends are cut for removal.
(6) Remove the heater return hose from the engine
compartment.
(7) Separate the heater hoses from each other as
required (depending on engine application).INSTALLATION
(1) If separated, reconnect the heater hoses to each
other as required (depending on engine application).
(2) Position the heater return hose into the engine
compartment.
(3) Using spring tension clamp pliers, compress
and slide each clamp away from the end of the hose
being installed.
(4) Install each hose by carefully twisting the hose
back and forth while gently pushing it onto the tube
end.
(5) Using spring tension clamp pliers, compress
and slide the clamps onto each end of the hose being
installed.
(6) Install the heater hose retaining brackets as
required (depending on engine application).
(7) Refill the engine cooling system (Refer to 7 -
COOLING - STANDARD PROCEDURE).
LIQUID LINE
DESCRIPTION
The liquid line is the refrigerant line that carries
refrigerant from the A/C condenser to the evaporator.
The liquid line for this model consist of two separate
lines that connect to each other. The liquid lines are
made from light-weight aluminum or steel, and use
braze-less fittings.
The front half of the liquid line contains the fixed
orifice tube. The liquid lines are only serviced as an
assembly, except for the rubber O-ring seals used on
the end fittings. The liquid lines cannot be adjusted
or repaired and, if found to be leaking or damaged,
they must be replaced.
REMOVAL
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
(1) Disconnect and isolate the battery negative
cable.
(2) If equipped with the diesel engine, remove the
passenger side battery (Refer to 8 - ELECTRICAL/
BATTERY SYSTEM/BATTERY - REMOVAL).
(3) If equipped with the diesel engine, remove the
passenger side battery tray (Refer to 8 - ELECTRI-
CAL/BATTERY SYSTEM/TRAY - REMOVAL).
(4) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
Fig. 25 Heater Hoses - Typical
1 - HEATER CORE TUBES
2 - HEATER INLET HOSE
3 - RETAINING BRACKET
4 - HOSE CONNECTOR
5 - SPRING CLAMP
6 - HEATER RETURN HOSE
DRPLUMBING 24 - 65
HEATER RETURN HOSE (Continued)

designs. Useonlyrefrigerant oil of the same type as
recommended to service the refrigerant system
(always refer to the specification tagincluded
with the replacement A/C compressor or the under-
hood A/C system specification tag).
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
WARNING: REFER TO THE APPLICABLE WARN-
INGS AND CAUTIONS FOR THIS SYSTEM BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
CAUTION: The refrigerant oil in the R-134a A/C sys-
tem is unique depending on the A/C compressor
used. Use only PAG oils that are designed to work
with R-134a refrigerant and the A/C compressor in
the vehicle. Always refer to the underhood A/C Sys-
tem Specification Label for the correct oil designa-
tion.
It is important to have the correct amount of lubri-
cant in the A/C refrigerant system to ensure proper
lubrication of the A/C compressor. Too little lubricant
will result in damage to the compressor. Too much
lubricant will reduce the cooling capacity of the A/C
system and consequently result in higher discharge
air temperatures.
The lubricant used in the compressor is polyalka-
lene glycol PAG lubricant. Only the refrigerant lubri-
cant approved for use with this vehicle should be
used to service the system. Do not use any other
lubricant. The lubricant container should be kept
tightly capped until it is ready for use. Refrigerant
lubricant will quickly absorb any moisture it comes
in contact with.
It will not be necessary to check the oil level in the
A/C compressor or to add oil, unless there has beenan oil loss. An oil loss may occur due to component
replacement, or a rupture or leak from a refrigerant
line, connector fitting, component or component seal.
If a leak occurs, add 30 milliliters (1 fluid ounce) of
the recommended refrigerant oil to the refrigerant
system after the repair has been made. Refrigerant
oil loss will be evident at the leak point by the pres-
ence of a wet, shiny surface around the leak.
COMPONENT REFRIGERANT OIL LEVEL CHECK
When an air conditioning system is first assembled
at the factory, all components (except the A/C com-
pressor) are refrigerant oil free. After the refrigerant
system has been charged with (R-134a) refrigerant
and operated, the oil in the A/C compressor is dis-
persed through the lines and components. The A/C
evaporator, A/C condenser, and accumulator will
retain a significant amount of oil. Refer to the A/C
Component Refrigerant Oil Capacities table. When a
component is replaced, the specified amount of refrig-
erant oil must be added. When a new A/C compressor
is being installed, drain the lubricant from the used
compressor, measure the amount drained and discard
the used lubricant. Drain the lubricant from the new
A/C compressor into a clean container. Return the
amount of lubricant measured from the used com-
pressor, plus the amount reclaimed from the system
back into the new A/C compressor. When a line or
component has ruptured and oil has escaped, the
accumulator must be replaced along with the rup-
tured component.
A/C COMPONENT REFRIGERANT OIL
CAPACITIES
Component ml. oz.
Total System Fill 180 6
Accumulator 60 2
Condenser 30 1
Evaporator 60 2
Compressor Drain and measure
the oil from the old
compressor - see
text.
COMPRESSOR REFRIGERANT OIL LEVEL CHECK
NOTE: Most reclaim/recycling equipment will mea-
sure the lubricant being removed during recovery.
This amount of lubricant should be added back into
the system. Refer to the reclaim/recycling equip-
ment manufacturers instructions.
(1) Recover the refrigerant from the system.
DRPLUMBING 24 - 69
REFRIGERANT OIL (Continued)

(2) Disconnect the refrigerant lines from the A/C
compressor. Cap open lines to prevent moisture from
entering the system.
(3) Remove the A/C compressor from the vehicle.
(4) From the suction and discharge ports on the
A/C compressor, drain the lubricant from the old A/C
compressor into a clean container.
(5) From the suction and discharge ports on the
A/C compressor, drain the lubricant from the new
A/C compressor into a clean container.
(6) Install new lubricant back into the new A/C
compressor in the amount measured from the used
compressor, plus adding any amount of lubricant lost
when the refrigerant system was reclaimed.
(7) Install the A/C compressor and connect the
refrigerant lines. Then evacuate and charge refriger-
ant system.
SERVICE PORT VALVE CORE
DESCRIPTION
A/C SERVICE PORT VALVE CORES
The A/C service port valve cores are serviceable
items. The A/C pressure transducer is mounted on
the high side service port which is located on the dis-
charge line near the A/C compressor. The low side
service port is located on the suction line near the
accumulator outlet tube.
REMOVAL - SERVICE PORT VALVE CORES
WARNING: REFER TO THE APPLICABLE WARN-
INGS AND CAUTIONS FOR THIS SYSTEM BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
(1) Remove the protective cap from the low side
service port as necessary.
(2) Remove the A/C pressure transducer from the
high side service port as necessary (Refer to 24 -
HEATING & AIR CONDITIONING/CONTROLS/A/C
PRESSURE TRANSDUCER - REMOVAL).
(3) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING/REFRIGERANT - STANDARD
PROCEDURE).
(4) Using a standard Schrader-type valve core tool,
remove the valve core from the service ports as
required.
(5) Install a plug in or tape over the opened ser-
vice port(s).
INSTALLATION
(1) Lubricate the A/C service port valve core with
clean refrigerant oil prior to installation. Use only
refrigerant oil of the type recommended for the A/C
compressor in the vehicle.
(2) Remove the tape or plug from the A/C service
port.
CAUTION: A valve core that is not fully seated in
the A/C service port can result in damage to the
valve during refrigerant system evacuation and
charge. Such damage may result in a loss of sys-
tem refrigerant while uncoupling the charge adapt-
ers.
(3) Using a standard Schrader-type valve core tool,
install and tighten the replacement valve core into
the A/C service ports as required.
(4) Evacuate the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM EVACUATE).
(5) Charge the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
FRONT/REFRIGERANT - STANDARD PROCE-
DURE - REFRIGERANT SYSTEM CHARGE).
(6) Install the A/C pressure transducer to the high
side service port as necessary (Refer to 24 - HEAT-
ING & AIR CONDITIONING/CONTROLS/A/C
PRESSURE TRANSDUCER - INSTALLATION).
(7) Install the protective cap onto the A/C service
ports as required.
SUCTION LINE
DESCRIPTION
The suction line is the refrigerant line that goes
from the evaporator outlet tube to the compressor
inlet port. The suction line for the 5.9L Diesel engine
is only serviced as an assembly with the discharge
line. The suction line has no serviceable parts except
the rubber O-rings. If the suction line is found to be
leaking or is damaged, it must be replaced.
REMOVAL
REMOVAL - 5.9L DIESEL ENGINE
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
24 - 70 PLUMBINGDR
REFRIGERANT OIL (Continued)

(1) Disconnect and isolate the battery negative
cable.
(2) Recover the refrigerant from the refrigerant
system (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING - STANDARD PROCEDURE -
REFRIGERANT RECOVERY).
(3) Disconnect the wire harness connector from the
A/C pressure transducer.
(4) Remove the nut that secures the discharge line
fitting to the condenser inlet port (Fig. 29).
(5) Disconnect the discharge line from the con-
denser.
(6) Remove the O-ring seal from the discharge line
fitting and discard.
(7) Install plugs in, or tape over the discharge line
fitting and condenser inlet port.
(8) Remove the bolt that secures the suction/dis-
charge line assembly to the A/C compressor.
(9) Disconnect the suction/discharge line assembly
from the A/C compressor.
(10) Remove the O-ring seals from the suction and
discharge line fittings and discard.
(11) Install plugs in, or tape over all of the opened
refrigerant line fittings and the compressor ports.(12) Remove the secondary retaining clip from the
spring-lock coupler that secures the suction line to
the accumulator outlet tube (Fig. 30).
(13) Using the proper A/C line disconnect tool, dis-
connect the suction line from the accumulator outlet
tube (Refer to 24 - HEATING & AIR CONDITION-
ING/PLUMBING/REFRIGERANT LINE COUPLER -
REMOVAL).
(14) Remove the O-ring seal from the accumulator
outlet tube fitting and discard.
(15) Install plugs in, or tape over the opened suc-
tion line and the accumulator outlet tube fitting.
(16) Remove the suction/discharge line assembly
from the engine compartment.
(17) If necessary, remove the A/C pressure trans-
ducer from the discharge line.
REMOVAL - 3.7L/4.7L AND 5.7L HEMI ENGINE
WARNING: REVIEW THE WARNINGS AND CAU-
TIONS IN THE FRONT OF THIS SECTION BEFORE
PERFORMING THE FOLLOWING OPERATION (Refer
to 24 - HEATING & AIR CONDITIONING/PLUMBING -
WARNING) and (Refer to 24 - HEATING & AIR CON-
DITIONING/PLUMBING - CAUTION).
Fig. 29 A/C Suction Line - 5.9L Diesel Engine
1 - CONDENSER
2 - NUT
3 - LIQUID LINE
4 - NUT
5 - PRESSURE TRANSDUCER WIRE CONNECTOR
6 - A/C COMPRESSOR
7 - BOLT
8 - SUCTION/DISCHARGE LINE ASSEMBLY
Fig. 30 Suction Line - A/C Accumulator
1 - RH INNER FENDER
2 - ACCUMULATOR INLET TUBE
3 - A/C LINE SECONDARY RETAINING CLIP
4 - EVAPORATOR OUTLET TUBE
5 - BOLTS (2)
6 - ACCUMULATOR
7 - SUCTION LINE
8 - A/C LOW PRESSURE SERVICE PORT
9 - A/C LINE SECONDARY RETAINING CLIP
DRPLUMBING 24 - 71
SUCTION LINE (Continued)

For example, when the MIL is illuminated for an
Oxygen Sensor fault, the Task Manager does not run
the Catalyst Monitor until the Oxygen Sensor fault is
remedied. Since the Catalyst Monitor is based on sig-
nals from the Oxygen Sensor, running the test would
produce inaccurate results.
²Conflict
There are situations when the Task Manager does
not run a test if another monitor is in progress. In
these situations, the effects of another monitor run-
ning could result in an erroneous failure. If thiscon-
flictis present, the monitor is not run until the
conflicting condition passes. Most likely the monitor
will run later after the conflicting monitor has
passed.
For example, if the Fuel System Monitor is in
progress, the Task Manager does not run the EGR
Monitor. Since both tests monitor changes in air/fuel
ratio and adaptive fuel compensation, the monitors
will conflict with each other.
²Suspend
Occasionally the Task Manager may not allow a two
trip fault to mature. The Task Manager willsus-
pendthe maturing of a fault if a condition exists
that may induce an erroneous failure. This prevents
illuminating the MIL for the wrong fault and allows
more precis diagnosis.
For example, if the PCM is storing a one trip fault
for the Oxygen Sensor and the EGR monitor, the
Task Manager may still run the EGR Monitor but
will suspend the results until the Oxygen Sensor
Monitor either passes or fails. At that point the Task
Manager can determine if the EGR system is actu-
ally failing or if an Oxygen Sensor is failing.
MIL Illumination
The PCM Task Manager carries out the illumina-
tion of the MIL. The Task Manager triggers MIL illu-
mination upon test failure, depending on monitor
failure criteria.
The Task Manager Screen shows both a Requested
MIL state and an Actual MIL state. When the MIL is
illuminated upon completion of a test for a third trip,
the Requested MIL state changes to OFF. However,
the MIL remains illuminated until the next key
cycle. (On some vehicles, the MIL will actually turn
OFF during the third key cycle) During the key cycle
for the third good trip, the Requested MIL state is
OFF, while the Actual MILL state is ON. After the
next key cycle, the MIL is not illuminated and both
MIL states read OFF.
Diagnostic Trouble Codes (DTCs)
With OBD II, different DTC faults have different
priorities according to regulations. As a result, the
priorities determine MIL illumination and DTC era-sure. DTCs are entered according to individual prior-
ity. DTCs with a higher priority overwrite lower
priority DTCs.
Priorities
²Priority 0 ÐNon-emissions related trouble codes
²Priority 1 Ð One trip failure of a two trip fault
for non-fuel system and non-misfire.
²Priority 2 Ð One trip failure of a two trip fault
for fuel system (rich/lean) or misfire.
²Priority3ÐTwotrip failure for a non-fuel sys-
tem and non-misfire or matured one trip comprehen-
sive component fault.
²Priority4ÐTwotrip failure or matured fault
for fuel system (rich/lean) and misfire or one trip cat-
alyst damaging misfire.
Non-emissions related failures have no priority.
One trip failures of two trip faults have low priority.
Two trip failures or matured faults have higher pri-
ority. One and two trip failures of fuel system and
misfire monitor take precedence over non-fuel system
and non-misfire failures.
DTC Self Erasure
With one trip components or systems, the MIL is
illuminated upon test failure and DTCs are stored.
Two trip monitors are components requiring failure
in two consecutive trips for MIL illumination. Upon
failure of the first test, the Task Manager enters a
maturing code. If the component fails the test for a
second time the code matures and a DTC is set.
After three good trips the MIL is extinguished and
the Task Manager automatically switches the trip
counter to a warm-up cycle counter. DTCs are auto-
matically erased following 40 warm-up cycles if the
component does not fail again.
For misfire and fuel system monitors, the compo-
nent must pass the test under a Similar Conditions
Window in order to record a good trip. A Similar Con-
ditions Window is when engine RPM is within  375
RPM and load is within  10% of when the fault
occurred.
NOTE: It is important to understand that a compo-
nent does not have to fail under a similar window of
operation to mature. It must pass the test under a
Similar Conditions Window when it failed to record
a Good Trip for DTC erasure for misfire and fuel
system monitors.
DTCs can be erased anytime with a DRB III. Eras-
ing the DTC with the DRB III erases all OBD II
information. The DRB III automatically displays a
warning that erasing the DTC will also erase all
OBD II monitor data. This includes all counter infor-
mation for warm-up cycles, trips and Freeze Frame.
25 - 6 EMISSIONS CONTROLDR
EMISSIONS CONTROL (Continued)

INDEX
ABS - DESCRIPTION, BRAKES...........5-45
ABS - OPERATION, BRAKES.............5-45
ABS BRAKE BLEEDING - STANDARD
PROCEDURE.........................5-46
ABS INDICATOR - DESCRIPTION.........8J-17
ABS INDICATOR - OPERATION..........8J-17
A/C COMPRESSOR - DESCRIPTION......24-48
A/C COMPRESSOR - DIAGNOSIS AND
TESTING...........................24-49
A/C COMPRESSOR - OPERATION........24-48
A/C COMPRESSOR CLUTCH BREAK-IN -
STANDARD PROCEDURE...............24-10
A/C COMPRESSOR CLUTCH COIL -
DIAGNOSIS AND TESTING.............24-10
A/C COMPRESSOR CLUTCH RELAY -
DESCRIPTION.......................24-13
A/C COMPRESSOR CLUTCH RELAY -
INSTALLATION.......................24-14
A/C COMPRESSOR CLUTCH RELAY -
OPERATION.........................24-13
A/C COMPRESSOR CLUTCH RELAY -
REMOVAL..........................24-14
A/C COMPRESSOR CLUTCH/COIL -
DESCRIPTION........................24-9
A/C COMPRESSOR CLUTCH/COIL -
INSPECTION........................24-11
A/C COMPRESSOR CLUTCH/COIL -
INSTALLATION.......................24-12
A/C COMPRESSOR CLUTCH/COIL -
OPERATION..........................24-9
A/C COMPRESSOR CLUTCH/COIL -
REMOVAL..........................24-10
A/C CONDENSER - DESCRIPTION........24-52
A/C CONDENSER - OPERATION..........24-52
A/C DISCHARGE LINE - DESCRIPTION....24-56
A/C EVAPORATOR - DESCRIPTION.......24-59
A/C EVAPORATOR - INSTALLATION......24-60
A/C EVAPORATOR - OPERATION.........24-59
A/C EVAPORATOR - REMOVAL..........24-60
A/C HEATER CONTROL - DESCRIPTION . . . 24-14
A/C HEATER CONTROL - INSTALLATION . . . 24-15
A/C HEATER CONTROL - REMOVAL......24-15
A/C ORIFICE TUBE - DESCRIPTION.......24-60
A/C ORIFICE TUBE - DIAGNOSIS AND
TESTING...........................24-61
A/C ORIFICE TUBE - OPERATION........24-60
A/C PERFORMANCE - DIAGNOSIS AND
TESTING............................24-3
A/C PRESSURE TRANSDUCER -
DESCRIPTION.......................24-15
A/C PRESSURE TRANSDUCER -
DIAGNOSIS AND TESTING.............24-16
A/C PRESSURE TRANSDUCER -
INSTALLATION.......................24-16
A/C PRESSURE TRANSDUCER -
OPERATION.........................24-16
A/C PRESSURE TRANSDUCER -
REMOVAL..........................24-16
A/C SYSTEM - SPECIFICATIONS..........24-7
A/C SYSTEM, CAUTION................24-43
A/C SYSTEM, WARNING...............24-43
ACCELERATOR PEDAL - INSTALLATION . . . 14-21
ACCELERATOR PEDAL - REMOVAL.......14-21
ACCELERATOR PEDAL POSITION
SENSOR - DESCRIPTION.........14-22,14-68
ACCELERATOR PEDAL POSITION
SENSOR - INSTALLATION.........14-22,14-71
ACCELERATOR PEDAL POSITION
SENSOR - OPERATION...........14-22,14-68
ACCELERATOR PEDAL POSITION
SENSOR - REMOVAL.............14-22,14-68
ACCESSORY DRIVE BELT - DIAGNOSIS
AND TESTING....................7-24,7-27
ACCUMULATOR - DESCRIPTION.........24-61
ACCUMULATOR - DESCRIPTION........21-193
ACCUMULATOR - INSPECTION.........21-194
ACCUMULATOR - INSTALLATION........24-62
ACCUMULATOR - OPERATION..........24-61
ACCUMULATOR - OPERATION..........21-193
ACCUMULATOR - REMOVAL............24-61
ACM COVER - INSTALLATION
...........8O-10
ACM COVER - REMOVAL
..............8O-10
ACTUATION TEST MODE - DESCRIPTION,
CIRCUIT
.............................25-1
ACTUATOR - DESCRIPTION, BLEND
DOOR
.............................24-17
ACTUATOR - DESCRIPTION, DEFROST
DOOR
.............................24-20ACTUATOR - DESCRIPTION, FUEL
CONTROL..........................14-74
ACTUATOR - DESCRIPTION, MODE
DOOR.............................24-23
ACTUATOR - DESCRIPTION,
RECIRCULATION DOOR................24-24
ACTUATOR - INSTALLATION, BLEND
DOOR.............................24-18
ACTUATOR - INSTALLATION, DEFROST
DOOR.............................24-21
ACTUATOR - INSTALLATION, INSIDE
HANDLE.......................23-22,23-32
ACTUATOR - INSTALLATION, MODE
DOOR.............................24-23
ACTUATOR - INSTALLATION,
RECIRCULATION DOOR................24-25
ACTUATOR - OPERATION, BLEND DOOR . . 24-17
ACTUATOR - OPERATION, DEFROST
DOOR.............................24-21
ACTUATOR - OPERATION, FUEL
CONTROL..........................14-74
ACTUATOR - OPERATION, MODE DOOR . . . 24-23
ACTUATOR - OPERATION,
RECIRCULATION DOOR................24-24
ACTUATOR - REMOVAL, BLEND DOOR....24-17
ACTUATOR - REMOVAL, DEFROST DOOR . . 24-21
ACTUATOR - REMOVAL, FUEL CONTROL . . 14-74
ACTUATOR - REMOVAL, INSIDE HANDLE . 23-22,
23-31
ACTUATOR - REMOVAL, MODE DOOR....24-23
ACTUATOR - REMOVAL, RECIRCULATION
DOOR...............................24-24
ADAPTER HOUSING SEAL -
INSTALLATION...........21-128,21-364,21-85
ADAPTER HOUSING SEAL - REMOVAL . . 21-128,
21-364,21-85
ADAPTER MOUNT - INSTALLATION, DISC
BRAKE CALIPER......................5-22
ADHESIVE LOCATIONS -
SPECIFICATIONS, STRUCTURAL........23-112
ADJUSTABLE PEDAL MOTOR -
DESCRIPTION.........................5-6
ADJUSTABLE PEDAL MOTOR -
INSTALLATION.........................5-7
ADJUSTABLE PEDAL MOTOR - REMOVAL . . . 5-7
ADJUSTABLE PEDAL SWITCH -
INSTALLATION.........................5-6
ADJUSTABLE PEDAL SWITCH -
REMOVAL............................5-6
ADJUSTER - DIAGNOSIS AND TESTING,
HYDRAULIC LASH................9-125,9-32
ADJUSTER - INSTALLATION, SEAT BELT
TURNING LOOP.....................8O-55
ADJUSTER - REMOVAL, SEAT BELT
TURNING LOOP.....................8O-55
ADJUSTER ASSEMBLY - DESCRIPTION,
ROCKER ARM.......................9-125
ADJUSTER ASSEMBLY - INSTALLATION,
ROCKER ARM.......................9-126
ADJUSTER ASSEMBLY - REMOVAL,
ROCKER ARM.......................9-126
ADJUSTER ASSY - CLEANING, ROCKER
ARM ..............................9-262
ADJUSTER ASSY - DESCRIPTION,
ROCKER ARM.......................9-261
ADJUSTER ASSY - INSPECTION,
ROCKER ARM.......................9-262
ADJUSTER ASSY - INSTALLATION,
ROCKER ARM..................9-203,9-263
ADJUSTER ASSY - REMOVAL, ROCKER
ARM .........................9-203,9-261
ADJUSTING TOOL - ADJUSTMENT, WITH . . . 5-42
AFTER A SUPPLEMENTAL RESTRAINT
DEPLOYMENT - STANDARD
PROCEDURE, SERVICE.................8O-7
AIR CHECKING TRANSMISSION CLUTCH
OPERATION - DIAGNOSIS AND
TESTING..........................21-317
AIR CLEANER ELEMENT - INSTALLATION
. 9-107,
9-21,9-249
AIR CLEANER ELEMENT - REMOVAL
. 9-107,9-21,
9-248
AIR CONDITIONER - DESCRIPTION,
HEATER
.............................24-1
AIR CONDITIONER - OPERATION,
HEATER
.............................24-1
AIR CONTROL MOTOR - DESCRIPTION,
IDLE
...............................14-28AIR CONTROL MOTOR - INSTALLATION,
IDLE...............................14-29
AIR CONTROL MOTOR - OPERATION,
IDLE...............................14-28
AIR CONTROL MOTOR - REMOVAL, IDLE . . 14-29
AIR COOLER AND PLUMBING -
CLEANING, CHARGE..................11-17
AIR COOLER AND PLUMBING -
DESCRIPTION, CHARGE...............11-16
AIR COOLER AND PLUMBING -
INSPECTION, CHARGE.................11-17
AIR COOLER AND PLUMBING -
INSTALLATION, CHARGE...............11-17
AIR COOLER AND PLUMBING -
OPERATION, CHARGE.................11-16
AIR COOLER AND PLUMBING -
REMOVAL, CHARGE..................11-17
AIR COOLER SYSTEM - LEAKS -
DIAGNOSIS AND TESTING, CHARGE......11-16
AIR DAM - INSTALLATION, FRONT........13-2
AIR DAM - REMOVAL, FRONT...........13-2
AIR HEATER - DESCRIPTION, INTAKE.....14-80
AIR HEATER - INSTALLATION, INTAKE....14-80
AIR HEATER - OPERATION, INTAKE......14-80
AIR HEATER - REMOVAL, INTAKE........14-80
AIR HEATER RELAY - DESCRIPTION,
INTAKE ............................14-82
AIR HEATER RELAY - INSTALLATION,
INTAKE ............................14-82
AIR HEATER RELAY - OPERATION,
INTAKE ............................14-82
AIR HEATER RELAY - REMOVAL, INTAKE . . 14-82
AIR INTAKE SYSTEM - INSTALLATION....9-199
AIR INTAKE SYSTEM - REMOVAL........9-199
AIR OUTLETS - DESCRIPTION..........24-26
AIR OUTLETS - INSTALLATION..........24-27
AIR OUTLETS - REMOVAL.............24-26
AIR TEMPERATURE SENSOR -
DESCRIPTION, INTAKE................14-30
AIR TEMPERATURE SENSOR -
INSTALLATION, INTAKE................14-31
AIR TEMPERATURE SENSOR -
OPERATION, INTAKE..................14-30
AIR TEMPERATURE SENSOR -
REMOVAL, INTAKE...................14-30
AIR TEMPERATURE SENSOR/MAP
SENSOR - DESCRIPTION, INTAKE........14-82
AIR TEMPERATURE SENSOR/MAP
SENSOR - INSTALLATION, INTAKE.......14-82
AIR TEMPERATURE SENSOR/MAP
SENSOR - OPERATION, INTAKE.........14-82
AIR TEMPERATURE SENSOR/MAP
SENSOR - REMOVAL, INTAKE...........14-82
AIR TEMPERATURE SENSOR/PRESSURE
SENSOR - DESCRIPTION, INLET.........14-79
AIR TEMPERATURE SENSOR/PRESSURE
SENSOR - INSTALLATION, INLET........14-79
AIR TEMPERATURE SENSOR/PRESSURE
SENSOR - OPERATION, INLET..........14-79
AIR TEMPERATURE SENSOR/PRESSURE
SENSOR - REMOVAL, INLET............14-79
AIR TESTING TRANSMISSION CLUTCH
AND BAND OPERATION - DIAGNOSIS
AND TESTING......................21-144
AIR TO OIL COOLER - INSTALLATION.....7-70
AIR TO OIL COOLER - REMOVAL.........7-69
AIRBAG - ASSEMBLY, DRIVER..........8O-26
AIRBAG - DESCRIPTION, DRIVER........8O-23
AIRBAG - DESCRIPTION, PASSENGER....8O-39
AIRBAG - DESCRIPTION, SIDE CURTAIN . . 8O-56
AIRBAG - DISASSEMBLY, DRIVER.......8O-25
AIRBAG - INSTALLATION, DRIVER.......8O-28
AIRBAG - INSTALLATION, PASSENGER . . . 8O-41
AIRBAG - INSTALLATION, SIDE CURTAIN . . 8O-58
AIRBAG - OPERATION, DRIVER.........8O-23
AIRBAG - OPERATION, PASSENGER......8O-40
AIRBAG - OPERATION, SIDE CURTAIN....8O-56
AIRBAG - REMOVAL, DRIVER...........8O-24
AIRBAG - REMOVAL, PASSENGER.......8O-40
AIRBAG - REMOVAL, SIDE CURTAIN.....8O-57
AIRBAG CONTROL MODULE -
DESCRIPTION
.......................8O-11
AIRBAG CONTROL MODULE -
INSTALLATION
......................8O-13
AIRBAG CONTROL MODULE -
OPERATION
.........................8O-11
AIRBAG CONTROL MODULE - REMOVAL
. . 8O-12
AIRBAG INDICATOR - DESCRIPTION
......8J-18
DRINDEX 1
Description Group-Page Description Group-Page Description Group-Page

CASE - NV271 - DESCRIPTION,
TRANSFER.........................21-447
CASE - NV271 - DIAGNOSIS AND
TESTING, TRANSFER.................21-448
CASE - NV271 - DISASSEMBLY,
TRANSFER.........................21-450
CASE - NV271 - INSPECTION, TRANSFER . 21-459
CASE - NV271 - INSTALLATION,
TRANSFER.........................21-473
CASE - NV271 - OPERATION, TRANSFER . 21-448
CASE - NV271 - REMOVAL, TRANSFER . . 21-450
CASE - NV273 - ASSEMBLY, TRANSFER . . 21-556
CASE - NV273 - CLEANING, TRANSFER . . 21-554
CASE - NV273 - DESCRIPTION,
TRANSFER.........................21-542
CASE - NV273 - DIAGNOSIS AND
TESTING, TRANSFER.................21-543
CASE - NV273 - DISASSEMBLY,
TRANSFER.........................21-544
CASE - NV273 - INSPECTION, TRANSFER . 21-554
CASE - NV273 - INSTALLATION,
TRANSFER.........................21-568
CASE - NV273 - OPERATION, TRANSFER . 21-543
CASE - NV273 - REMOVAL, TRANSFER . . 21-544
CASE BEARINGS - INSTALLATION,
DIFFERENTIAL.....3-106,3-134,3-161,3-48,3-75
CASE BEARINGS - REMOVAL,
DIFFERENTIAL.....3-105,3-134,3-161,3-48,3-75
CASE CONTROL MODULE -
DESCRIPTION, TRANSFER.............8E-16
CASE CONTROL MODULE - OPERATION,
TRANSFER..........................8E-16
CASE, NV241 GENII - TRANSFER.......21-438
CASE, NV241/NV243 - TRANSFER......21-439
CASE, NV243 - TRANSFER......21-505,21-506
CASE, NV244 GENII - TRANSFER.......21-535
CASE, NV271 - TRANSFER............21-473
CASE NV271/NV273, SPECIAL TOOLS -
TRANSFER...................21-474,21-569
CASE, NV273 - TRANSFER............21-568
CASE SKID PLATE - INSTALLATION,
TRANSFER..........................13-26
CASE SKID PLATE - REMOVAL,
TRANSFER..........................13-26
CASTER ADJUSTMENT - STANDARD
PROCEDURE, CAMBER..................2-4
CASTER AND TOE ADJUSTMENT -
STANDARD PROCEDURE, CAMBER........2-4
CATALYTIC CONVERTER - DESCRIPTION . . . 11-6
CATALYTIC CONVERTER - OPERATION.....11-6
CATCH - INSTALLATION, LATCH STRIKER
/ SECONDARY.......................23-48
CATCH - REMOVAL, LATCH STRIKER /
SECONDARY........................23-47
CAUTION - A/C SYSTEM...............24-43
CAUTION, HALF SHAFT.................3-20
CAUTION, INTERIOR..................23-62
CENTER - DESCRIPTION, ELECTRONIC
VEHICLE INFO.......................8M-7
CENTER - DIAGNOSIS AND TESTING,
ELECTRONIC VEHICLE INFORMATION.....8M-8
CENTER - INSTALLATION, ELECTRONIC
VEHICLE INFO.......................8M-9
CENTER & LEFT OUTBOARD -
INSTALLATION......................8O-50
CENTER & LEFT OUTBOARD - REMOVAL
. . 8O-48
CENTER - OPERATION, ELECTRONIC
VEHICLE INFO
.......................8M-7
CENTER - REMOVAL, ELECTRONIC
VEHICLE INFO
.......................8M-9
CENTER ANCHOR & RIGHT OUTBOARD -
INSTALLATION
......................8O-50
CENTER ANCHOR & RIGHT OUTBOARD -
REMOVAL
..........................8O-49
CENTER ARMREST / SEAT BACK -
INSTALLATION
.......................23-77
CENTER ARMREST / SEAT BACK -
REMOVAL
..........................23-76
CENTER BEARING - ADJUSTMENTS
........3-9
CENTER BEARING - INSTALLATION
........3-9
CENTER BEARING - REMOVAL
............3-9
CENTER BEZEL - INSTALLATION,
INSTRUMENT PANEL
..................23-57
CENTER BEZEL - REMOVAL,
INSTRUMENT PANEL
..................23-57
CENTER HIGH MOUNTED STOP LAMP -
INSTALLATION
.......................8L-11CENTER HIGH MOUNTED STOP LAMP -
REMOVAL..........................8L-11
CENTER HIGH MOUNTED STOP LAMP
UNIT - INSTALLATION.................8L-11
CENTER HIGH MOUNTED STOP LAMP
UNIT - REMOVAL....................8L-11
CENTER PROGRAMMING - STANDARD
PROCEDURE, ELECTRONIC VEHICLE
INFORMATION.......................8M-8
CENTER SEAT - INSTALLATION..........23-76
CENTER SEAT - REMOVAL.............23-75
CENTER SEAT BACK HINGE -
INSTALLATION.......................23-79
CENTER SEAT BACK HINGE - REMOVAL . . . 23-78
CENTER SEAT BACK INERTIA HINGE
COVER - INSTALLATION...............23-77
CENTER SEAT BACK INERTIA HINGE
COVER - REMOVAL...................23-77
CENTER SEAT BACK LID - INSTALLATION . 23-79
CENTER SEAT BACK LID - REMOVAL.....23-79
CENTER SEAT BELT - INSTALLATION,
FRONT.............................8O-31
CENTER SEAT BELT - REMOVAL, FRONT . . 8O-30
CENTER SEAT BELT & RETRACTOR -
INSTALLATION, FRONT................8O-29
CENTER SEAT BELT & RETRACTOR -
INSTALLATION, REAR.................8O-45
CENTER SEAT BELT & RETRACTOR -
REMOVAL, FRONT....................8O-29
CENTER SEAT BELT & RETRACTOR -
REMOVAL, REAR....................8O-44
CENTER SEAT CUSHION - INSTALLATION . . . 23-79
CENTER SEAT CUSHION - REMOVAL.....23-79
CENTER SEAT CUSHION COVER -
INSTALLATION.......................23-79
CENTER SEAT CUSHION COVER -
REMOVAL..........................23-79
CENTERING - STANDARD PROCEDURE,
CLOCKSPRING......................8O-19
CERTIFICATION LABEL - DESCRIPTION,
VEHICLE.........................Intro.-11
CHAIN COVER(S) - INSTALLATION,
TIMING BELT....................9-171,9-81
CHAIN COVER(S) - REMOVAL, TIMING
BELT ..........................9-170,9-81
CHAIN WEAR - STANDARD PROCEDURE,
MEASURING TIMING..................9-167
CHAIN WEAR, STANDARD PROCEDURE -
MEASURING TIMING...................9-77
CHAIN/TENSIONER - DESCRIPTION,
TIMING............................9-229
CHAIN/TENSIONER - OPERATION,
TIMING............................9-229
CHANNEL - INSTALLATION, GLASS RUN . . 23-22,
23-31
CHANNEL - REMOVAL, GLASS RUN . 23-21,23-30
CHARGE - STANDARD PROCEDURE,
REFRIGERANT SYSTEM...............24-47
CHARGE AIR COOLER AND PLUMBING -
CLEANING..........................11-17
CHARGE AIR COOLER AND PLUMBING -
DESCRIPTION.......................11-16
CHARGE AIR COOLER AND PLUMBING -
INSPECTION........................11-17
CHARGE AIR COOLER AND PLUMBING -
INSTALLATION.......................11-17
CHARGE AIR COOLER AND PLUMBING -
OPERATION
.........................11-16
CHARGE AIR COOLER AND PLUMBING -
REMOVAL
..........................11-17
CHARGE AIR COOLER SYSTEM - LEAKS
- DIAGNOSIS AND TESTING
............11-16
CHARGING - DESCRIPTION
.............8F-19
CHARGING - OPERATION
..............8F-19
CHARGING - STANDARD PROCEDURE,
BATTERY
............................8F-8
CHARGING SYSTEM - DIAGNOSIS AND
TESTING
...........................8F-19
CHARGING SYSTEM - SPECIFICATIONS,
TORQUE - GENERATOR
................8F-20
CHART - SPECIFICATIONS, TORQUE
........5-8
CHART, SPECIFICATIONS - TORQUE
.......5-46
CHART, SPECIFICATIONS - TORQUE
.....19-19,
19-23,19-35,19-42
CHART, SPECIFICATIONS - TORQUE
. . 2-10,2-29,
2-42
CHART, SPECIFICATIONS - TORQUE
......22-13CHARTS - DIAGNOSIS AND TESTING,
DIAGNOSIS........................21-145
CHARTS - DIAGNOSIS AND TESTING,
SMOKE DIAGNOSIS...................9-236
CHECK - STANDARD PROCEDURE,
COOLANT LEVEL......................7-17
CHECK - STANDARD PROCEDURE, FLUID
LEVEL......................21-202,21-366
CHECK - STANDARD PROCEDURE, OIL
PUMP VOLUME.....................21-387
CHECK CABLE - INSTALLATION.........23-15
CHECK CABLE - REMOVAL.............23-15
CHECK GAUGES INDICATOR -
DESCRIPTION.......................8J-21
CHECK GAUGES INDICATOR -
OPERATION.........................8J-21
CHECK VALVE - DESCRIPTION...........8R-7
CHECK VALVE - INSTALLATION..........8R-8
CHECK VALVE - OPERATION.............8R-8
CHECK VALVE - REMOVAL..............8R-8
CHILD RESTRAINT ANCHOR -
DESCRIPTION.......................8O-15
CHILD RESTRAINT ANCHOR -
INSTALLATION......................8O-18
CHILD RESTRAINT ANCHOR -
OPERATION.........................8O-17
CHILD RESTRAINT ANCHOR - REMOVAL . . 8O-17
CHIME WARNING SYSTEM -
DESCRIPTION........................8B-1
CHIME WARNING SYSTEM - DIAGNOSIS
AND TESTING........................8B-3
CHIME WARNING SYSTEM - OPERATION . . . 8B-1
CIGAR LIGHTER OUTLET -
DESCRIPTION.....................8W-97-2
CIGAR LIGHTER OUTLET - DIAGNOSIS
AND TESTING.....................8W-97-2
CIGAR LIGHTER OUTLET - OPERATION . 8W-97-2
CIRCUIT - DIAGNOSIS AND TESTING,
AMBIENT TEMPERATURE SENSOR......8M-10
CIRCUIT - OPERATION, FUEL DRAIN.....14-67
CIRCUIT ACTUATION TEST MODE -
DESCRIPTION........................25-1
CIRCUIT FUNCTIONS - DESCRIPTION . . 8W-01-6
CIRCUIT INFORMATION - DESCRIPTION . 8W-01-5
CIRCUIT SENSE - DESCRIPTION,
IGNITION...........................8E-10
CIRCUIT SENSE - OPERATION, IGNITION . . 8E-11
CIRCUITS - OPERATION, NON-
MONITORED.........................25-8
CLAMPS - DESCRIPTION, HOSE...........7-3
CLAMPS - OPERATION, HOSE.............7-5
CLEANING/REVERSE FLUSHING -
STANDARD PROCEDURE, COOLING
SYSTEM............................7-17
CLEARANCE - STANDARD PROCEDURE,
CONNECTING ROD BEARING AND
CRANKSHAFT JOURNAL...............9-272
CLEARANCE - STANDARD PROCEDURE,
MAIN BEARING......................9-274
CLEARANCE LAMP - INSTALLATION, CAB . 8L-12
CLEARANCE LAMP - REMOVAL, CAB.....8L-11
CLOCKSPRING - DESCRIPTION.........8O-18
CLOCKSPRING - INSTALLATION.........8O-21
CLOCKSPRING - OPERATION...........8O-19
CLOCKSPRING - REMOVAL............8O-20
CLOCKSPRING CENTERING - STANDARD
PROCEDURE........................8O-19
CLUSTER - ASSEMBLY, INSTRUMENT....8J-15
CLUSTER - DESCRIPTION, INSTRUMENT . . . 8J-2
CLUSTER - DIAGNOSIS AND TESTING,
INSTRUMENT........................8J-10
CLUSTER - DISASSEMBLY, INSTRUMENT . . 8J-14
CLUSTER - INSTALLATION, INSTRUMENT . 8J-16
CLUSTER - OPERATION, INSTRUMENT.....8J-6
CLUSTER - REMOVAL, INSTRUMENT.....8J-14
CLUSTER BEZEL - INSTALLATION........23-49
CLUSTER BEZEL - REMOVAL...........23-49
CLUTCH - 5.9L DIESEL - DESCRIPTION,
FAN DRIVE VISCOUS...................7-52
CLUTCH - 5.9L DIESEL - OPERATION,
FAN DRIVE VISCOUS...................7-52
CLUTCH - ASSEMBLY, FRONT..........21-207
CLUTCH - ASSEMBLY, LOW/REVERSE . . . 21-385
CLUTCH - ASSEMBLY, REAR
...........21-249
CLUTCH - CLEANING, LOW/REVERSE
....21-385
CLUTCH - CLEANING, REAR
...........21-248
CLUTCH - DESCRIPTION, FRONT
.......21-205
CLUTCH - DESCRIPTION, OVERDRIVE
. . . 21-217
6 INDEXDR
Description Group-Page Description Group-Page Description Group-Page