Distribution Block DODGE RAM 1500 1998 2.G User Guide

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Page 2491 of 2627

DODGE RAM 1500 1998 2.G User Guide PERFORMANCE TEMPERATURE AND PRESSURE
Ambient Air
Temperature21É C
(70É F)27É C
(80É F)32É C
(90É F)38É C
(100É F)43É C
(110É F)
Air Temperature at
Center Panel Outlet7É C
(45É F)7É C
(45�

PERFORMANCE TEMPERATURE AND PRESSURE
Ambient Air
Temperature21É C
(70É F)27É C
(80É F)32É C
(90É F)38É C
(100É F)43É C
(110É F)
Air Temperature at
Center Panel Outlet7É C
(45É F)7É C
(45É F)13É C
(55É F)13É C
(55É F)18É C
(64É F)
Compressor Inlet
Pressure at Service
Port (low Side)138 to 207 kPa
(20 to 30 psi)172 to 241 kPa
(25 to 35 psi)207 to 276
kPa
(30 to 40 psi)241 to 310
kPa
(35 to 45 psi)276 to 345 kPa
(40 to 50 psi)
Compressor
Discharge Pressure at
Service Port (High
Side)1034 to 1724
kPa
(150 to 250
psi)1379 to 2068
kPa
(200 to 300
psi)1724 to 2413
kPa
(250 to 350
psi)1999 to 2689
kPa
(290 to 390
psi)2413 to 2965
kPa
(350 to 430 psi)
(9) Compare the compressor discharge pressure to
the Performance Temperature and Pressure chart. Ifthe compressor discharge pressure is high, see the
Pressure Diagnosis chart.
PRESSURE DIAGNOSIS
Condition Possible Causes Correction
Constant compressor
engagement and warm air
from passenger vents.1. Low refrigerant system
charge.1. See Refrigerant System Leaks in this group.
Test the refrigerant system for leaks. Repair,
evacuate and charge the refrigerant system, if
required.
Equal pressures, but the
compressor clutch does not
engage.1. No refrigerant in the
refrigerant system.1. See Refrigerant System Leaks in this group.
Test the refrigerant system for leaks. Repair,
evacuate and charge the refrigerant system, if
required.
2. Faulty fuse. 2. Check the fuses in the Power Distribution
Center and the junction block. Repair the shorted
circuit or component and replace the fuses, if
required.
3. Faulty A/C compressor
clutch coil.3. See A/C Compressor Clutch Coil in this group.
Test the compressor clutch coil and replace, if
required.
4. Faulty A/C compressor
clutch relay.4. See A/C Compressor Clutch Relay in this
group. Test the compressor clutch relay and relay
circuits. Repair the circuits or replace the relay, if
required.
5. Improperly installed or
faulty Evaporator
Temperature Sensor.5. See Evaporator Temperature Sensor in this
group. Reinstall or replace the sensor as
required.
6. Faulty A/C pressure
transducer.6. See A/C pressure transducer in this group.
Test the switch and replace, if required.
7. Faulty Powertrain Control
Module (PCM).7. (Refer to Appropriate Diagnostic Information).
Test the PCM and replace, if required.
24 - 4 HEATING & AIR CONDITIONINGDR
HEATING & AIR CONDITIONING (Continued)

Page 2494 of 2627

DODGE RAM 1500 1998 2.G User Guide ²Faulty A/C-heater control.
²Faulty related wiring harness or connectors.
²Improper engine coolant temperature.
SPECIFICATIONS - A/C SYSTEM
The R-134a refrigerant system charge capacity for
this ve

Page 2515 of 2627

DODGE RAM 1500 1998 2.G User Guide (5) Install the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION)
BLOWER MOTOR
DESCRIPTION
The blower motor and blower wheel are located in
the passeng

(5) Install the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION)
BLOWER MOTOR
DESCRIPTION
The blower motor and blower wheel are located in
the passenger side end of the HVAC housing, below
the glove box. The blower motor controls the velocity
of air flowing through the HVAC housing by spinning
a squirrel cage-type blower wheel within the housing
at the selected speed. The blower motor and wheel
can be removed from the housing inside the vehicle
without removing the instrument panel or HVAC
housing.
OPERATION
The blower motor will only operate with the igni-
tion switch in the On position and the A/C-heater
mode control switch in any position, except Off. The
blower motor receives a fused battery feed circuit
through a fuse in the Power Distribution Center
(PDC) whenever the ignition switch is in the On posi-
tion. Blower motor speed is controlled by regulating
the ground path through or around the blower motor
resistor block and through the A/C-heater blower
motor switch.
The blower motor and blower motor wheel are ser-
viced only as a unit and cannot be repaired and, if
faulty or damaged, must be replaced.
DIAGNOSIS AND TESTING - BLOWER MOTOR
BLOWER MOTOR INOPERATIVE
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
For circuit descriptions and diagrams, refer to the
appropriate wiring information. The wiring informa-
tion includes wiring, diagrams, proper wire and con-
nector repair procedures, further details on wire
harness routing and retention, as well as pin-out and
location views for the various wire harness connec-
tors, splices and grounds.
BLOWER MOTOR ELECTRICAL DIAGNOSIS
Refer to the Blower Motor Electrical Diagnosis
chart for basic checks of the blower motor circuit
(Fig. 3).
BLOWER MOTOR NOISE OR VIBRATION
Refer to the Blower Motor Noise/Vibration Diagno-
sis chart for basic checks of the blower motor when a
vibration or noise is present (Fig. 4).
24 - 28 DISTRIBUTIONDR
BLEND DOOR (Continued)

Page 2518 of 2627

DODGE RAM 1500 1998 2.G User Guide REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AN

REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
NOTE: The blower motor is located on the passen-
ger side of the vehicle under the instrument panel.
The blower motor can be removed from the vehicle
without having to remove the HVAC housing.
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect the wire harness connector from the
blower motor. (Fig. 5).
(3) Remove the three screws that secure the
blower motor to the HVAC housing.
(4) Remove the blower motor from the HVAC hous-
ing by rotating and tilting the blower motor as
needed for clearance.
INSTALLATION
(1) Align and install the blower motor into the
HVAC housing.
(2) Install the three screws that secure the blower
motor to the HVAC housing. Tighten the screws to
2.2 N´m (20 in. lbs.).
(3) Connect the wire harness connector to the
blower motor.
(4) Reconnect the battery negative cable.
DEFROST DOOR
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THISIS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN AN ACCIDENTAL
AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Remove the HVAC housing from the vehicle
(Refer to 24 - HEATING & AIR CONDITIONING/
DISTRIBUTION/HVAC HOUSING - REMOVAL).
(2) Disassemble the HVAC housing (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - DISASSEMBLY).
(3) Remove the defrost door actuator and sleeve
from the lower half of the HVAC housing (Fig. 6).
(4) Gently slide the defrost door toward the out-
side of the housing. Tilt and lift the door out of the
housing.
(5) Inspect the defrost door, seals and the HVAC
housing for damage or binding and repair or replace
components as required.
INSTALLATION
(1) Position the defrost door pivot shaft into the
pivot hole in the lower half of the HVAC housing.
(2) Install the defrost door actuator and sleeve.
(3) Assemble the HVAC housing (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
HVAC HOUSING - ASSEMBLY)
(4) Install the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION)
Fig. 5 HVAC Blower Motor - Typical
1 - RESISTOR BLOCK SCREWS (2)
2 - BLOWER MOTOR RESISTOR BLOCK
3 - RESISTOR BLOCK WIRE CONNECTOR
4 - BLOWER MOTOR SCREW
5 - BLOWER MOTOR
6 - BLOWER MOTOR WIRE CONNECTOR
7 - BLOWER MOTOR SCREW
8 - HVAC HOUSING
9 - WIRE HARNESS RETAINER (2)
10 - BLOWER MOTOR SCREW
DRDISTRIBUTION 24 - 31
BLOWER MOTOR (Continued)

Page 2522 of 2627

DODGE RAM 1500 1998 2.G User Guide DISASSEMBLY
(1) Remove the HVAC housing from the vehicle
and place it on the workbench (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - REMOVAL).
(2) Disconnect the electrical c

DISASSEMBLY
(1) Remove the HVAC housing from the vehicle
and place it on the workbench (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - REMOVAL).
(2) Disconnect the electrical connectors from the
blower motor, blower motor resistor block, evaporator
temperature sensor and each actuator (Fig. 10).
(3) Remove the HVAC wiring harness from the
HVAC housing.
(4) If necessary, remove the blower motor from
the HVAC housing (Refer to 24 - HEATING & AIR
CONDITIONING/DISTRIBUTION/BLOWER
MOTOR - REMOVAL).
(5) If necessary, remove the blower motor resistor
block from the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/CONTROLS/BLOWER
MOTOR RESISTOR BLOCK - REMOVAL).
(6) Carefully remove the foam seals from the
heater core and evaporator coil tube mounting flange
of the HVAC housing. If the either seal is deformed
or damaged, it must be replaced.
(7) Remove the screws that secure the heater core
in the HVAC housing and carefully remove the
heater core from the housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING/HEATER
CORE - REMOVAL).(8) Use a screwdriver to pry off the four snap clips
that help secure the upper and lower HVAC housing
halves together.
(9) Remove the screws that secure the upper and
lower HVAC housing halves to each other and those
that secure the recirculation housing to the upper
HVAC housing.
(10) Carefully separate the recirculation housing
and the upper HVAC housing from the lower hous-
ing.
ASSEMBLY
(1) Position the upper HVAC housing to the lower
housing. During assembly, be certain of the following:
(a) That each of the door pivot shaft ends are
properly engaged in there pivot holes.
(b) That the evaporator drain opening is clean
and the drain foam seal is properly installed.
(2) Install the screws and snap clips that secure
the upper and lower HVAC housing halves to each
other and those that secure the recirculation housing
to the upper HVAC housing. Tighten the screws to
2.2 N´m (20 in. lbs.).
(3) Install the foam seals on the heater core and
evaporator coil tubes.
(4) If removed, install the blower motor resistor
block (Refer to 24 - HEATING & AIR CONDITION-
Fig. 10 HVAC Housing - Disassembled
1 - RECIRCULATION HOUSING
2 - RECIRC DOOR ACTUATOR
3 - DRIVER SIDE BLEND DOOR ACTUATOR
4 - FLOOR DISTRIBUTION DUCT
5 - DEFROST DOOR ACTUATOR
6 - PANEL DOOR ACTUATOR
7 - UPPER HVAC HOUSING
8 - PASSENGER SIDE BLEND DOOR ACTUATOR9 - HEATER CORE
10 - LOWER HVAC HOUSING
11 - HVAC WIRE HARNESS
12 - DRAIN FOAM SEAL
13 - BLOWER MOTOR
14 - EVAPORATOR FOAM SEAL
15 - EVAPORATOR
16 - HEATER CORE FOAM SEAL
DRDISTRIBUTION 24 - 35
HVAC HOUSING (Continued)

Page 2523 of 2627

DODGE RAM 1500 1998 2.G User Guide ING/CONTROLS/BLOWER MOTOR RESISTOR
BLOCK - INSTALLATION).
(5) If removed, install the blower motor (Refer to
24 - HEATING & AIR CONDITIONING/DISTRIBU-
TION/BLOWER MOTOR - INSTALLATION).
(6) Install th

ING/CONTROLS/BLOWER MOTOR RESISTOR
BLOCK - INSTALLATION).
(5) If removed, install the blower motor (Refer to
24 - HEATING & AIR CONDITIONING/DISTRIBU-
TION/BLOWER MOTOR - INSTALLATION).
(6) Install the HVAC wire harness. Make sure the
wires are routed through all wiring retainers.
(7) Connect the wire harness to the blower motor,
blower motor resistor block, evaporator temperature
sensor and each actuator.
(8) Install the HVAC housing (Refer to 24 - HEAT-
ING & AIR CONDITIONING/DISTRIBUTION/HVAC
HOUSING - INSTALLATION).
INSTALLATION
WARNING: IF THE VEHICLE IS EQUIPPED WITH AIR
CONDITIONING, REVIEW THE WARNINGS AND
CAUTIONS IN PLUMBING BEFORE PERFORMING
THE FOLLOWING OPERATION. (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - WARNING)
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - CAUTION) (Refer to 24 - HEATING &
AIR CONDITIONING/PLUMBING - CAUTION -
REFRIGERANT HOSES/LINES/TUBES PRECAU-
TIONS)
(1) Position the HVAC housing into the vehicle. Be
certain that the evaporator condensate drain tube
and the housing mounting studs are inserted into
their correct locations.
(2) Install the two nuts that secure the HVAC
housing to the mounting studs in the passenger com-
partment. Tighten the nuts to 6.2 N´m (55 in. lbs.).
(3) Install the bolt that secures the HVAC housing
to the floor bracket in the passenger compartment.
Tighten the bolt to 6.2 N´m (55 in. lbs.).
(4) Install the instrument panel (Refer to 23 -
BODY/INSTRUMENT PANEL - INSTALLATION).
(5) Install the two nuts that secure the HVAC
housing to the mounting studs in the engine com-
partment. Tighten the nuts to 6.2 N´m (55 in. lbs.).
(6) Install the powertrain control module (PCM)
(Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/POWERTRAIN CONTROL MOD-
ULE - INSTALLATION).
(7) Unplug or remove the tape from the heater
core tubes and connect the heater hoses to the heater
core tubes.
(8) Unplug or remove the tape from the opened
refrigerant line fittings and the evaporator outlet
tube and install the accumulator (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/AC-
CUMULATOR - INSTALLATION).
(9) Unplug or remove the tape from the liquid line
and the evaporator inlet tube fittings. Connect the
liquid line coupler to the evaporator inlet tube (Referto 24 - HEATING & AIR CONDITIONING/PLUMB-
ING - STANDARD PROCEDURE - A/C LINE COU-
PLERS).
(10) Evacuate the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM EVACUATE).
(11) Charge the refrigerant system (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
STANDARD PROCEDURE - REFRIGERANT SYS-
TEM CHARGE).
(12) Fill the engine cooling system (Refer to 7 -
COOLING/ENGINE - STANDARD PROCEDURE).
(13) Connect the battery negative cable.
(14) Start the engine and check for proper opera-
tion of the heating and air conditioning systems.
INSTRUMENT PANEL
DEMISTER DUCTS
REMOVAL
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. DISCONNECT AND ISO-
LATE THE BATTERY NEGATIVE (GROUND) CABLE,
THEN WAIT TWO MINUTES FOR THE AIRBAG SYS-
TEM CAPACITOR TO DISCHARGE BEFORE PER-
FORMING FURTHER DIAGNOSIS OR SERVICE. THIS
IS THE ONLY SURE WAY TO DISABLE THE AIRBAG
SYSTEM. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Remove the defroster ducts (Refer to 24 -
HEATING & AIR CONDITIONING/DISTRIBUTION/
DEFROSTER DUCTS - REMOVAL).
(2) Remove the two screws that secure the center
distribution duct to the instrument panel support.
(3) Remove the center distribution duct from
instrument panel support, panel ducts and demister
ducts.
(4) Remove the right side panel duct adapter (Fig.
11).
(5) Remove the right side intermediate demister
duct.
(6) Remove the left side intermediate demister
duct.
(7) Remove the left side panel duct adapter.
(8) Remove the instrument panel cover (Refer to
23 - BODY/INSTRUMENT PANEL/INSTRUMENT
PANEL TOP COVER - REMOVAL).
24 - 36 DISTRIBUTIONDR
HVAC HOUSING (Continued)

Page 2597 of 2627

DODGE RAM 1500 1998 2.G User Guide DEPLOYMENT - STANDARD
PROCEDURE, SERVICE AFTER A
SUPPLEMENTAL RESTRAINT............8O-7
DETECTION ASSY - DESCRIPTION,
NATURAL VAC LEAK..................25-23
DETECTION ASSY - INSTALLATION,
NATURAL VAC

DEPLOYMENT - STANDARD
PROCEDURE, SERVICE AFTER A
SUPPLEMENTAL RESTRAINT............8O-7
DETECTION ASSY - DESCRIPTION,
NATURAL VAC LEAK..................25-23
DETECTION ASSY - INSTALLATION,
NATURAL VAC LEAK..................25-25
DETECTION ASSY - OPERATION,
NATURAL VAC LEAK..................25-23
DETECTION ASSY - REMOVAL, NATURAL
VAC LEAK..........................25-24
DETECTION PUMP - DESCRIPTION, LEAK . 25-13
DETECTION PUMP - INSTALLATION,
LEAK..............................25-16
DETECTION PUMP - OPERATION, LEAK . . . 25-14
DETECTION PUMP - REMOVAL, LEAK....25-16
DEVICES - STANDARD PROCEDURE,
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE........................8W-01-8
DIAGNOSTIC TROUBLE CODES -
DESCRIPTION........................25-1
DIAGNOSTICS (OBD) - DIAGNOSIS AND
TESTING, ON-BOARD...................7-5
DIAGRAMS - DESCRIPTION, HOW TO
USE WIRING......................8W-01-1
DIAGRAMS - HYDRAULIC SCHEMATICS,
SCHEMATICS.................21-176,21-337
DIESEL - CLEANING, RADIATOR - 5.9L....7-56
DIESEL - CLEANING, RADIATOR FAN -
5.9L................................7-35
DIESEL - CLEANING, WATER PUMP -
5.9L................................7-62
DIESEL - DESCRIPTION.................14-62
DIESEL - DESCRIPTION, 5.9L............11-3
DIESEL - DESCRIPTION, BELT
TENSIONER - 5.9L.....................7-23
DIESEL - DESCRIPTION, COOLING
SYSTEM FLOW - 5.9L...................7-3
DIESEL - DESCRIPTION, ENGINE 5.9L....9-232
DIESEL - DESCRIPTION, ENGINE BLOCK
HEATER - 5.9L........................7-37
DIESEL - DESCRIPTION, ENGINE
COOLANT THERMOSTAT - 5.9L...........7-46
DIESEL - DESCRIPTION, FAN DRIVE
VISCOUS CLUTCH - 5.9L...............7-52
DIESEL - DESCRIPTION, RADIATOR -
5.9L................................7-56
DIESEL - DESCRIPTION, TRANS COOLER
- 5.9L..............................7-68
DIESEL - DESCRIPTION, WATER PUMP -
5.9L................................7-62
DIESEL - FUEL INJECTOR FIRING ORDER . 14-48
DIESEL - INSPECTION, RADIATOR - 5.9L . . . 7-56
DIESEL - INSPECTION, RADIATOR FAN -
5.9L................................7-35
DIESEL - INSPECTION, TAILPIPE - 5.9L . . . 11-10
DIESEL - INSPECTION, WATER PUMP -
5.9L................................7-62
DIESEL - INSTALLATION................11-8
DIESEL - INSTALLATION...............14-62
DIESEL - INSTALLATION.....19-26,19-31,19-42
DIESEL - INSTALLATION, BELT
TENSIONER - 5.9L.....................7-24
DIESEL - INSTALLATION, DRIVE BELT -
5.9L
................................7-29
DIESEL - INSTALLATION, ENGINE BLOCK
HEATER - 5.9L
........................7-38
DIESEL - INSTALLATION, ENGINE
COOLANT THERMOSTAT - 5.9L
...........7-47
DIESEL - INSTALLATION, EXCEPT
........14-19
DIESEL - INSTALLATION, MUFFLER -
5.9L
...............................11-10
DIESEL - INSTALLATION, RADIATOR -
5.9L
................................7-57
DIESEL - INSTALLATION, RADIATOR FAN
- 5.9L
..............................7-36
DIESEL - INSTALLATION, TAILPIPE - 5.9L
. 11-11
DIESEL - INSTALLATION, WATER PUMP -
5.9L
................................7-62
DIESEL - MAINTENANCE SCHEDULES,
24-VALVE CUMMINS TURBO
.............0-12
DIESEL - OPERATION, BELT TENSIONER
- 5.9L
..............................7-23
DIESEL - OPERATION, ENGINE BLOCK
HEATER - 5.9L
........................7-38
DIESEL - OPERATION, ENGINE COOLANT
THERMOSTAT - 5.9L
...................7-46DIESEL - OPERATION, FAN DRIVE
VISCOUS CLUTCH - 5.9L...............7-52
DIESEL - OPERATION, RADIATOR - 5.9L . . . 7-56
DIESEL - OPERATION, TRANS COOLER -
5.9L................................7-69
DIESEL - OPERATION, WATER PUMP -
5.9L................................7-62
DIESEL - REMOVAL....................11-7
DIESEL - REMOVAL...................14-62
DIESEL - REMOVAL.........19-25,19-30,19-41
DIESEL - REMOVAL, BELT TENSIONER -
5.9L................................7-23
DIESEL - REMOVAL, DRIVE BELT - 5.9L....7-29
DIESEL - REMOVAL, ENGINE BLOCK
HEATER - 5.9L........................7-38
DIESEL - REMOVAL, ENGINE COOLANT
THERMOSTAT - 5.9L...................7-47
DIESEL - REMOVAL, EXCEPT...........14-17
DIESEL - REMOVAL, MUFFLER - 5.9L.....11-10
DIESEL - REMOVAL, RADIATOR - 5.9L.....7-56
DIESEL - REMOVAL, RADIATOR FAN -
5.9L................................7-35
DIESEL - REMOVAL, TAILPIPE - 5.9L.....11-10
DIESEL - REMOVAL, WATER PUMP -
5.9L................................7-62
DIESEL - SPECIFICATIONS, 5.9L.........9-244
DIESEL - TORQUE, FUEL SYSTEM -
EXCEPT.............................14-3
DIESEL ENGINE - DESCRIPTION, FUEL
REQUIREMENTS.......................0-1
DIESEL ENGINE - DIAGNOSIS AND
TESTING............................11-5
DIESEL ENGINE - DIAGNOSIS AND
TESTING, COOLING SYSTEM.............7-7
DIESEL ENGINE - INSTALLATION........8R-17
DIESEL ENGINE - INSTALLATION, 5.9L . . . 24-54,
24-58,24-72
DIESEL ENGINE - INSTALLATION,
EXCEPT............................8R-17
DIESEL ENGINE - REMOVAL............8R-16
DIESEL ENGINE - REMOVAL, 5.9L . . 24-53,24-56,
24-70
DIESEL ENGINE - REMOVAL, EXCEPT....8R-15
DIESEL ENGINE - STANDARD
PROCEDURE, DRAINING COOLING
SYSTEM 5.9L........................7-18
DIESEL ENGINE - STANDARD
PROCEDURE, REFILLING COOLING
SYSTEM 5.9L........................7-19
DIESEL ENGINE - TORQUE, FUEL
SYSTEM............................14-48
DIESEL ENGINE, SPECIAL TOOLS - 5.9L . . 9-246
DIESEL ENGINES - DESCRIPTION,
ENGINE OIL...........................0-2
DIESEL FUEL SYSTEM - DESCRIPTION . . . 14-45
DIESEL FUEL SYSTEM, SPECIAL TOOLS . . 14-49
DIESEL ONLY - ASSEMBLY, 5.9L..........7-70
DIESEL ONLY - DISASSEMBLY, 5.9L.......7-70
DIFFERENTIAL - ASSEMBLY . . . 3-129,3-156,3-47,
3-73,3-99
DIFFERENTIAL - DISASSEMBLY....3-128,3-155,
3-47,3-72,3-98
DIFFERENTIAL - INSTALLATION....3-130,3-157,
3-48,3-74,3-99
DIFFERENTIAL - REMOVAL
. . . 3-127,3-155,3-46,
3-72,3-97
DIFFERENTIAL CASE BEARINGS -
INSTALLATION
....3-106,3-134,3-161,3-48,3-75
DIFFERENTIAL CASE BEARINGS -
REMOVAL
........3-105,3-134,3-161,3-48,3-75
DIFFERENTIAL COVER - INSTALLATION
....3-97
DIFFERENTIAL COVER - REMOVAL
........3-97
DIFFERENTIAL TRAC-RITE - ASSEMBLY
. . 3-133,
3-161
DIFFERENTIAL TRAC-RITE - CLEANING
. . . 3-132,
3-160
DIFFERENTIAL TRAC-RITE -
DESCRIPTION
..................3-131,3-158
DIFFERENTIAL TRAC-RITE -
DISASSEMBLY
..................3-131,3-158
DIFFERENTIAL TRAC-RITE - INSPECTION
. 3-132,
3-160
DIFFERENTIAL TRAC-RITE - OPERATION
. . 3-131,
3-158
DIFFERENTIAL-TRAC-LOK - ASSEMBLY
. . . 3-103
DIFFERENTIAL-TRAC-LOK -
DESCRIPTION
.......................3-100DIFFERENTIAL-TRAC-LOK - DIAGNOSIS
AND TESTING.......................3-100
DIFFERENTIAL-TRAC-LOK -
DISASSEMBLY.......................3-101
DIFFERENTIAL-TRAC-LOK - OPERATION . . . 3-100
DIMENSIONS - SPECIFICATIONS, BODY
OPENING...........................23-99
DIMENSIONS - SPECIFICATIONS, FRAME . . 13-16
DIODE - INSTALLATION............8W-01-14
DIODE - REMOVAL................8W-01-14
DIODE REPLACEMENT - STANDARD
PROCEDURE........................24-45
DISC - INSTALLATION, CLUTCH...........6-5
DISC - REMOVAL, CLUTCH...............6-5
DISC BRAKE CALIPER ADAPTER MOUNT
- INSTALLATION......................5-22
DISC BRAKE CALIPERS - DESCRIPTION....5-16
DISC BRAKE CALIPERS - OPERATION.....5-16
DISC BRAKE ROTOR, DIAGNOSIS AND
TESTING............................5-32
DISCHARGE (ESD) SENSITIVE DEVICES -
STANDARD PROCEDURE,
ELECTROSTATIC...................8W-01-8
DISCHARGE LINE - DESCRIPTION, A/C....24-56
DISPLAY TEST MODE - DESCRIPTION,
STATE ..............................25-1
DISTRIBUTION - DESCRIPTION, POWER . 8W-97-1
DISTRIBUTION - OPERATION, POWER . . 8W-97-1
DISTRIBUTION DUCT - INSTALLATION,
FLOOR.............................24-34
DISTRIBUTION DUCT - REMOVAL,
FLOOR.............................24-33
DISTRIBUTION SYSTEMS, SPECIAL
TOOLS - POWER...................8W-97-2
DOME LAMP - DESCRIPTION...........8L-26
DOME LAMP - INSTALLATION..........8L-26
DOME LAMP - OPERATION.............8L-26
DOME LAMP - REMOVAL..............8L-26
DOOR - INSTALLATION...........23-18,23-28
DOOR - INSTALLATION, BLEND.........24-27
DOOR - INSTALLATION, DEFROST.......24-31
DOOR - INSTALLATION, FUEL FILL.......23-39
DOOR - INSTALLATION, MODE..........24-38
DOOR - INSTALLATION, RECIRCULATION . . 24-40
DOOR - REMOVAL...............23-18,23-28
DOOR - REMOVAL, BLEND.............24-27
DOOR - REMOVAL, DEFROST...........24-31
DOOR - REMOVAL, FUEL FILL..........23-39
DOOR - REMOVAL, MODE..............24-38
DOOR - REMOVAL, RECIRCULATION.....24-39
DOOR ACTUATOR - DESCRIPTION,
BLEND.............................24-17
DOOR ACTUATOR - DESCRIPTION,
DEFROST...........................24-20
DOOR ACTUATOR - DESCRIPTION,
MODE.............................24-23
DOOR ACTUATOR - DESCRIPTION,
RECIRCULATION.....................24-24
DOOR ACTUATOR - INSTALLATION,
BLEND.............................24-18
DOOR ACTUATOR - INSTALLATION,
DEFROST...........................24-21
DOOR ACTUATOR - INSTALLATION,
MODE.............................24-23
DOOR ACTUATOR - INSTALLATION,
RECIRCULATION.....................24-25
DOOR ACTUATOR - OPERATION, BLEND . . 24-17
DOOR ACTUATOR - OPERATION,
DEFROST...........................24-21
DOOR ACTUATOR - OPERATION, MODE . . . 24-23
DOOR ACTUATOR - OPERATION,
RECIRCULATION
.....................24-24
DOOR ACTUATOR - REMOVAL, BLEND
....24-17
DOOR ACTUATOR - REMOVAL, DEFROST
. . 24-21
DOOR ACTUATOR - REMOVAL, MODE
....24-23
DOOR ACTUATOR - REMOVAL,
RECIRCULATION
.....................24-24
DOOR AJAR INDICATOR - DESCRIPTION
. . 8J-23
DOOR AJAR INDICATOR - OPERATION
....8J-23
DOOR AJAR SWITCH - DESCRIPTION
....8L-27
DOOR AJAR SWITCH - OPERATION
......8L-27
DOOR GLASS - INSTALLATION
.....23-20,23-30
DOOR GLASS - REMOVAL
........23-20,23-30
DOOR GLASS RUN WEATHERSTRIP -
INSTALLATION, FRONT
................23-92
DOOR GLASS RUN WEATHERSTRIP -
INSTALLATION, REAR
.................23-93
10 INDEXDR
Description Group-Page Description Group-Page Description Group-Page

Page 2598 of 2627

DODGE RAM 1500 1998 2.G User Guide DOOR GLASS RUN WEATHERSTRIP -
REMOVAL, FRONT....................23-92
DOOR GLASS RUN WEATHERSTRIP -
REMOVAL, REAR.....................23-93
DOOR INNER BELT MOLDING -
INSTALLATION, FRONT...............

DOOR GLASS RUN WEATHERSTRIP -
REMOVAL, FRONT....................23-92
DOOR GLASS RUN WEATHERSTRIP -
REMOVAL, REAR.....................23-93
DOOR INNER BELT MOLDING -
INSTALLATION, FRONT................23-93
DOOR INNER BELT MOLDING -
INSTALLATION, REAR.................23-94
DOOR INNER BELT MOLDING -
REMOVAL, FRONT....................23-93
DOOR INNER BELT MOLDING -
REMOVAL, REAR.....................23-94
DOOR LOCK MOTOR - DESCRIPTION......8N-4
DOOR LOCK MOTOR - DIAGNOSIS AND
TESTING............................8N-4
DOOR LOCK MOTOR - OPERATION.......8N-4
DOOR MODULE - DESCRIPTION, DRIVER . . 8N-5
DOOR MODULE - DIAGNOSIS AND
TESTING, DRIVER.....................8N-6
DOOR MODULE - INSTALLATION,
DRIVER.............................8N-7
DOOR MODULE - OPERATION, DRIVER....8N-5
DOOR MODULE - REMOVAL, DRIVER.....8N-7
DOOR OPENING SEAL - INSTALLATION . . . 23-92
DOOR OPENING SEAL - REMOVAL.......23-92
DOOR OUTER BELT MOLDING -
INSTALLATION, FRONT................23-93
DOOR OUTER BELT MOLDING -
INSTALLATION, REAR.................23-94
DOOR OUTER BELT MOLDING -
REMOVAL, FRONT....................23-92
DOOR OUTER BELT MOLDING -
REMOVAL, REAR.....................23-93
DOOR SILL TRIM COVER -
INSTALLATION, REAR.................23-71
DOOR SILL TRIM COVER - REMOVAL,
REAR..............................23-71
DOUBLE CARDAN UNIVERSAL JOINTS -
ASSEMBLY..........................3-17
DOUBLE CARDAN UNIVERSAL JOINTS -
DISASSEMBLY........................3-16
DOUBLE INVERTED FLARING -
STANDARD PROCEDURE................5-10
DRAG LINK - INSTALLATION............19-36
DRAG LINK - REMOVAL...............19-36
DRAIN AND REFILL - STANDARD
PROCEDURE, FLUID.....21-441,21-476,21-507,
21-537,21-571
DRAIN CIRCUIT - OPERATION, FUEL.....14-67
DRAINBACK VALVE - DESCRIPTION,
TORQUE CONVERTER................21-261
DRAINBACK VALVE - OPERATION,
TORQUE CONVERTER................21-261
DRAINBACK VALVE - STANDARD
PROCEDURE, TORQUE CONVERTER.....21-261
DRAINING AT FUEL FILTER - STANDARD
PROCEDURES, WATER................14-47
DRAW TEST - STANDARD PROCEDURE,
IGNITION-OFF.......................8F-11
DRIP RAIL WEATHERSTRIP -
INSTALLATION.......................23-91
DRIP RAIL WEATHERSTRIP - REMOVAL . . 23-91
DRIP RAIL WEATHERSTRIP RETAINER -
INSTALLATION.......................23-92
DRIP RAIL WEATHERSTRIP RETAINER -
REMOVAL..........................23-92
DRIVE - DIAGNOSIS AND TESTING,
ELECTRONICALLY CONTROLLED
VISCOUS FAN........................7-52
DRIVE - DIAGNOSIS AND TESTING,
VISCOUS FAN........................7-50
DRIVE BELT - 3.7L / 4.7L -
INSTALLATION........................7-26
DRIVE BELT - 3.7L / 4.7L - REMOVAL.....7-26
DRIVE BELT - 5.9L DIESEL -
INSTALLATION........................7-29
DRIVE BELT - 5.9L DIESEL - REMOVAL....7-29
DRIVE BELT - DIAGNOSIS AND TESTING,
ACCESSORY.....................7-24,7-27
DRIVE LEARN - STANDARD PROCEDURE . . 8E-23
DRIVE SYSTEM - DESCRIPTION, TIMING
. . 9-166
DRIVE SYSTEM - OPERATION, TIMING
....9-166
DRIVE VISCOUS CLUTCH - 5.9L DIESEL
- DESCRIPTION, FAN
...................7-52
DRIVE VISCOUS CLUTCH - 5.9L DIESEL
- OPERATION, FAN
....................7-52
DRIVE VISCOUS CLUTCH-GAS ENGINES
- DESCRIPTION, FAN
...................7-50DRIVE VISCOUS CLUTCH-GAS ENGINES
- OPERATION, FAN....................7-50
DRIVER AIRBAG - ASSEMBLY..........8O-26
DRIVER AIRBAG - DESCRIPTION........8O-23
DRIVER AIRBAG - DISASSEMBLY........8O-25
DRIVER AIRBAG - INSTALLATION.......8O-28
DRIVER AIRBAG - OPERATION..........8O-23
DRIVER AIRBAG - REMOVAL...........8O-24
DRIVER DOOR MODULE - DESCRIPTION . . . 8N-5
DRIVER DOOR MODULE - DIAGNOSIS
AND TESTING........................8N-6
DRIVER DOOR MODULE - INSTALLATION . . 8N-7
DRIVER DOOR MODULE - OPERATION....8N-5
DRIVER DOOR MODULE - REMOVAL......8N-7
DRIVER SEAT SWITCH - DESCRIPTION . . . 8N-14
DRIVER SEAT SWITCH - DIAGNOSIS
AND TESTING.......................8N-14
DRIVER SEAT SWITCH - INSTALLATION . . 8N-15
DRIVER SEAT SWITCH - OPERATION.....8N-14
DRIVER SEAT SWITCH - REMOVAL......8N-15
DRIVER SIDE BEZEL - INSTALLATION,
INSTRUMENT PANEL..................23-58
DRIVER SIDE BEZEL - REMOVAL,
INSTRUMENT PANEL..................23-58
DROP - STANDARD PROCEDURE,
TESTING FOR A VOLTAGE...........8W-01-10
DRUM IN HAT BRAKE - CLEANING,
REAR...............................5-39
DRUM IN HAT BRAKE - INSPECTION,
REAR...............................5-39
DUAL REAR WHEEL INSTALLATION -
STANDARD PROCEDURE...............22-12
DUAL WHEELS - INSTALLATION, REAR....5-35
DUAL WHEELS - REMOVAL, REAR........5-34
DUCT - INSTALLATION, DEFROSTER.....24-32
DUCT - INSTALLATION, FLOOR
DISTRIBUTION.......................24-34
DUCT - REMOVAL, DEFROSTER.........24-32
DUCT - REMOVAL, FLOOR
DISTRIBUTION.......................24-33
DUCTS - INSTALLATION, INSTRUMENT
PANEL.............................24-37
DUCTS - INSTALLATION, INSTRUMENT
PANEL DEMISTER....................24-37
DUCTS - REMOVAL, INSTRUMENT
PANEL.............................24-37
DUCTS - REMOVAL, INSTRUMENT
PANEL DEMISTER....................24-36
DUST BOOT - INSTALLATION,
EXTENSION HOUSING SEAL.....21-476,21-571
DUST BOOT - REMOVAL, EXTENSION
HOUSING SEAL...............21-476,21-571
ECM - DESCRIPTION...................8E-3
ECM - OPERATION....................8E-3
EFFECTS OF INCORRECT FLUID LEVEL -
DIAGNOSIS AND TESTING......21-201,21-366
ELECTRICAL CONTROLS - DIAGNOSIS
AND TESTING, OVERDRIVE............21-262
ELECTRONIC GOVERNOR -
DESCRIPTION......................21-197
ELECTRONIC GOVERNOR -
INSTALLATION......................21-200
ELECTRONIC GOVERNOR - OPERATION . . 21-198
ELECTRONIC GOVERNOR - REMOVAL . . . 21-199
ELECTRONIC VARIABLE BRAKE
PROPORTIONING - DESCRIPTION........5-49
ELECTRONIC VARIABLE BRAKE
PROPORTIONING - OPERATION..........5-49
ELECTRONIC VEHICLE INFO CENTER -
DESCRIPTION........................8M-7
ELECTRONIC VEHICLE INFO CENTER -
INSTALLATION.......................8M-9
ELECTRONIC VEHICLE INFO CENTER -
OPERATION.........................8M-7
ELECTRONIC VEHICLE INFO CENTER -
REMOVAL...........................8M-9
ELECTRONIC VEHICLE INFORMATION
CENTER - DIAGNOSIS AND TESTING
......8M-8
ELECTRONIC VEHICLE INFORMATION
CENTER PROGRAMMING - STANDARD
PROCEDURE
.........................8M-8
ELECTRONICALLY CONTROLLED
VISCOUS FAN DRIVE - DIAGNOSIS
AND TESTING
........................7-52
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE DEVICES - STANDARD
PROCEDURE
......................8W-01-8
ELEMENT - DESCRIPTION, HEATED SEAT
. . 8G-9ELEMENT - DIAGNOSIS AND TESTING,
HEATED SEAT .......................8G-10
ELEMENT - INSTALLATION, AIR
CLEANER..................9-107,9-21,9-249
ELEMENT - INSTALLATION, HEATED
SEAT ..............................8G-10
ELEMENT - OPERATION, HEATED SEAT . . . 8G-10
ELEMENT - REMOVAL, AIR CLEANER....9-107,
9-21,9-248
ELEMENT - REMOVAL, HEATED SEAT....8G-10
EMISSION CONTROL INFORMATION
(VECI) - DESCRIPTION, VEHICLE.......Intro.-2
END - DIAGNOSIS AND TESTING, OUTER
TIE ROD............................19-32
END - INSTALLATION, OUTER TIE ROD . . . 19-33
END - INSTALLATION, TIE ROD.........19-37
END - REMOVAL, OUTER TIE ROD.......19-32
END - REMOVAL, TIE ROD.............19-37
ENGINE - 3.7L - DESCRIPTION............9-3
ENGINE - 5.7L - DESCRIPTION..........9-182
ENGINE - DESCRIPTION, COOLING
SYSTEM FLOW 3.7L/4.7L/5.7L............7-1
ENGINE - DESCRIPTION, FUEL
REQUIREMENTS - DIESEL...............0-1
ENGINE - DIAGNOSIS AND TESTING,
COOLING SYSTEM DIESEL...............7-7
ENGINE - DIAGNOSIS AND TESTING,
DIESEL.............................11-5
ENGINE - DIAGNOSIS AND TESTING,
GAS................................11-4
ENGINE - FIRING ORDER / CABLE
ROUTING, 5.7L V-8....................8I-4
ENGINE - INSTALLATION...............9-242
ENGINE - INSTALLATION, 3.7L/4.7L AND
5.7L HEMI.....................24-59,24-73
ENGINE - INSTALLATION, 5.9L DIESEL . . . 24-54,
24-58,24-72
ENGINE - INSTALLATION, DIESEL........8R-17
ENGINE - INSTALLATION, EXCEPT
DIESEL............................8R-17
ENGINE - INSTALLATION, GAS..........19-26
ENGINE - REMOVAL..................9-241
ENGINE - REMOVAL, 3.7L/4.7L AND 5.7L
HEMI.........................24-57,24-71
ENGINE - REMOVAL, 5.9L DIESEL . . 24-53,24-56,
24-70
ENGINE - REMOVAL, DIESEL...........8R-16
ENGINE - REMOVAL, EXCEPT DIESEL....8R-15
ENGINE - REMOVAL, GAS..............19-25
ENGINE - SPECIFICATIONS, 3.7L.........9-12
ENGINE - SPECIFICATIONS, 4.7L.........9-99
ENGINE - STANDARD PROCEDURE,
DRAINING COOLING SYSTEM 5.9L
DIESEL.............................7-18
ENGINE - STANDARD PROCEDURE,
REFILLING COOLING SYSTEM 5.9L
DIESEL.............................7-19
ENGINE - TORQUE, FUEL SYSTEM -
DIESEL............................14-48
ENGINE 5.9L DIESEL - DESCRIPTION.....9-232
ENGINE BLOCK - CLEANING . . . 9-128,9-205,9-39
ENGINE BLOCK - DESCRIPTION.....9-128,9-38
ENGINE BLOCK - INSPECTION . 9-128,9-205,9-39
ENGINE BLOCK HEATER - 5.9L DIESEL -
DESCRIPTION........................7-37
ENGINE BLOCK HEATER - 5.9L DIESEL -
INSTALLATION........................7-38
ENGINE BLOCK HEATER - 5.9L DIESEL -
OPERATION..........................7-38
ENGINE BLOCK HEATER - 5.9L DIESEL -
REMOVAL...........................7-38
ENGINE BLOCK HEATER - DESCRIPTION . . . 7-36
ENGINE BLOCK HEATER - DIAGNOSIS
AND TESTING........................7-36
ENGINE BLOCK HEATER - INSTALLATION . . . 7-37
ENGINE BLOCK HEATER - OPERATION.....7-36
ENGINE BLOCK HEATER - REMOVAL......7-37
ENGINE CONTROL MODULE -
INSTALLATION........................8E-4
ENGINE CONTROL MODULE - REMOVAL . . . 8E-4
ENGINE COOLANT - DESCRIPTION
........7-31
ENGINE COOLANT - DESCRIPTION
.........0-3
ENGINE COOLANT TEMPERATURE
SENSOR - DESCRIPTION
...............7-38
ENGINE COOLANT TEMPERATURE
SENSOR - INSTALLATION
...............7-41
ENGINE COOLANT TEMPERATURE
SENSOR - OPERATION
.................7-38
DRINDEX 11
Description Group-Page Description Group-Page Description Group-Page

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