1998 DODGE RAM 1500 section 5

OPERATION
The main purpose of the LDP is to pressurize the
fuel system for leak checking. It closes the EVAP sys-
tem vent to atmospheric pressure so the system can
be pressurized for leak testing. The diaphragm is
powered by engine vacuum. It pumps air into the
EVAP system to develop a pressure of about 7.59
H2O (1/4) psi. A reed switch in the LDP allows the
PCM to monitor the position of the LDP diaphragm.
The PCM uses the reed switch input to monitor how
fast the LDP is pumping air into the EVAP system.
This allows detection of leaks and blockage. The LDP
assembly consists of several parts (Fig. 5). The sole-
noid is controlled by the PCM, and it connects theupper pump cavity to either engine vacuum or atmo-
spheric pressure. A vent valve closes the EVAP sys-
tem to atmosphere, sealing the system during leak
testing. The pump section of the LDP consists of a
diaphragm that moves up and down to bring air in
through the air filter and inlet check valve, and
pump it out through an outlet check valve into the
EVAP system. The diaphragm is pulled up by engine
vacuum, and pushed down by spring pressure, as the
LDP solenoid turns on and off. The LDP also has a
magnetic reed switch to signal diaphragm position to
the PCM. When the diaphragm is down, the switch is
closed, which sends a 12 V (system voltage) signal to
the PCM. When the diaphragm is up, the switch is
open, and there is no voltage sent to the PCM. This
allows the PCM to monitor LDP pumping action as it
turns the LDP solenoid on and off.
Fig. 4 TYPICAL SYSTEM COMPONENTS
1 - Throttle Body
2 - Service Vacuum Supply Tee (SVST)
3 - LDP Solenoid
4 - EVAP System Air Filter
5 - LDP Vent Valve
6 - EVAP Purge Orifice
7 - EVAP Purge Solenoid
8 - Service Port
9 - To Fuel Tank
10 - EVAP Canister
11 - LDP
12 - Intake Air Plenum
Fig. 5 EVAP LEAK DETECTION SYSTEM
COMPONENTS
1 - Reed Switch
2 - Solenoid
3 - Spring
4 - Pump Cavity
5 - Diaphragm
6 - Inlet Check Valve
7 - Vent Valve
8 - From Air Filter
9 - To Canister
10 - Outlet Check Valve
11 - Engine Vacuum
25 - 14 EVAPORATIVE EMISSIONSDR
LEAK DETECTION PUMP (Continued)

FIRING ORDER / CABLE ROUTING, 5.7L
V-8 ENGINE..........................8I-4
FIRING ORDER, 3.7L V-6 - ENGINE........8I-4
FIRING ORDER, 4.7L V-8 - ENGINE........8I-4
FIRING ORDER, DIESEL - FUEL
INJECTOR..........................14-48
FITTING - DESCRIPTION, QUICK
CONNECT............................14-8
FITTING - STANDARD PROCEDURE,
CONNECTING ROD BEARING...........9-129
FITTING - STANDARD PROCEDURE,
CRANKSHAFT MAIN BEARING.....9-134,9-207
FITTING - STANDARD PROCEDURE,
PISTON...................9-139,9-211,9-51
FITTING - STANDARD PROCEDURE,
PISTON RING.........9-142,9-213,9-284,9-53
FITTING, STANDARD PROCEDURE -
CONNECTING ROD BEARING............9-49
FITTING, STANDARD PROCEDURE -
MAIN BEARING.......................9-44
FITTINGS - STANDARD PROCEDURE,
HANDLING TUBING...................24-45
FITTINGS - STANDARD PROCEDURE,
QUICK-CONNECT......................14-8
FLAG - INSTALLATION, SIDE VIEW
MIRROR...........................23-27
FLAG - REMOVAL, SIDE VIEW MIRROR . . . 23-27
FLARING - STANDARD PROCEDURE,
DOUBLE INVERTED....................5-10
FLARING - STANDARD PROCEDURE, ISO . . . 5-11
FLEX PLATE - INSTALLATION . . 9-138,9-210,9-48
FLEX PLATE - REMOVAL.......9-138,9-210,9-48
FLOOR - INSTALLATION, LOAD..........23-72
FLOOR - REMOVAL, LOAD.............23-71
FLOOR CONSOLE - INSTALLATION.......23-67
FLOOR CONSOLE - REMOVAL...........23-67
FLOOR DISTRIBUTION DUCT -
INSTALLATION.......................24-34
FLOOR DISTRIBUTION DUCT - REMOVAL . 24-33
FLOOR MATS - INSTALLATION, CARPETS . 23-65
FLOOR MATS - REMOVAL, CARPETS.....23-65
FLOOR SHIFT BOOT - INSTALLATION,
4WD ..............................23-62
FLOOR SHIFT BOOT - REMOVAL, 4WD....23-62
FLOOR SUPPORT CYLINDER -
INSTALLATION, LOAD.................23-72
FLOOR SUPPORT CYLINDER -
REMOVAL, LOAD.....................23-72
FLOW - 5.9L DIESEL - DESCRIPTION,
COOLING SYSTEM.....................7-3
FLOW - DIAGNOSIS AND TESTING,
RADIATOR COOLANT..............7-54,7-56
FLOW 3.7L/4.7L/5.7L ENGINE -
DESCRIPTION, COOLING SYSTEM.........7-1
FLOW AND PRESSURE - DIAGNOSIS
AND TESTING, POWER STEERING........19-4
FLUID - DESCRIPTION................19-43
FLUID - DESCRIPTION, AUTOMATIC
TRANSMISSION.......................0-4
FLUID - DESCRIPTION, POWER
STEERING............................0-3
FLUID - DIAGNOSIS AND TESTING,
CAUSES OF BURNT............21-201,21-366
FLUID - OPERATION, AUTOMATIC
TRANSMISSION.......................0-5
FLUID AND FILTER REPLACEMENT -
STANDARD PROCEDURE........21-203,21-367
FLUID CAPACITIES, SPECIFICATIONS.......0-5
FLUID CONTAMINATION - DIAGNOSIS
AND TESTING................21-202,21-366
FLUID CONTAMINATION - DIAGNOSIS
AND TESTING, BRAKE..................5-23
FLUID COOLER - INSTALLATION.........19-43
FLUID COOLER - REMOVAL............19-43
FLUID DRAIN AND REFILL - STANDARD
PROCEDURE.....21-441,21-476,21-507,21-537,
21-571
FLUID INDICATOR - DESCRIPTION,
WASHER
...........................8J-44
FLUID INDICATOR - OPERATION,
WASHER
...........................8J-44
FLUID LEAK - DIAGNOSIS AND TESTING,
CONVERTER HOUSING
.........21-144,21-318
FLUID LEVEL - DIAGNOSIS AND
TESTING, EFFECTS OF INCORRECT
.....21-201,
21-366
FLUID LEVEL - STANDARD PROCEDURE,
BRAKE
..............................5-23FLUID LEVEL CHECK - STANDARD
PROCEDURE.................21-202,21-366
FLUID LEVEL CHECKING - STANDARD
PROCEDURE, POWER STEERING........19-43
FLUID LEVEL SWITCH - DESCRIPTION,
WASHER............................8R-9
FLUID LEVEL SWITCH - INSTALLATION,
WASHER...........................8R-11
FLUID LEVEL SWITCH - OPERATION,
WASHER............................8R-9
FLUID LEVEL SWITCH - REMOVAL,
WASHER...........................8R-10
FLUID RESERVOIR - INSTALLATION.......5-24
FLUID RESERVOIR - REMOVAL..........5-23
FLUID, SPECIFICATIONS - BRAKE.........5-23
FLUSH - SPECIFICATIONS, GAP.........23-95
FLUSHING - STANDARD PROCEDURE,
COOLING SYSTEM CLEANING/
REVERSE............................7-17
FLUSHING POWER STEERING SYSTEM -
STANDARD PROCEDURE...............19-40
FLYWHEEL - ASSEMBLY................6-11
FLYWHEEL - DIAGNOSIS AND TESTING....6-10
FLYWHEEL - DISASSEMBLY.............6-11
FLYWHEEL - INSTALLATION.............6-11
FLYWHEEL - REMOVAL.................6-11
FOG LAMP - INSTALLATION............8L-12
FOG LAMP - REMOVAL................8L-12
FOG LAMP RELAY - DESCRIPTION.......8L-12
FOG LAMP RELAY - INSTALLATION........8L-13
FOG LAMP RELAY - OPERATION.........8L-13
FOG LAMP RELAY - REMOVAL..........8L-13
FOOTMANS LOOP BRACKETS -
INSTALLATION, SEAT BACK REAR.......23-85
FOOTMANS LOOP BRACKETS -
REMOVAL, SEAT BACK REAR...........23-85
FORM-IN-PLACE GASKETS AND
SEALERS - STANDARD PROCEDURE . . 9-239,9-9,
9-94
FRAME - INSTALLATION, GRILLE........23-40
FRAME - REAR - INSTALLATION, SEAT
CUSHION...........................23-85
FRAME - REAR - REMOVAL, SEAT
CUSHION...........................23-85
FRAME - REMOVAL, GRILLE............23-40
FRAME DIMENSIONS - SPECIFICATIONS . . 13-16
FRAME H-SECTION REPLACEMENT -
STANDARD PROCEDURE, REAR.........13-13
FRAME RAIL TIP REPLACEMENT -
STANDARD PROCEDURE, LIGHT DUTY
FRONT..............................13-4
FREE MODULE - INSTALLATION, HANDS . . . 8T-2
FREE MODULE - REMOVAL, HANDS.......8T-2
FRONT - INSTALLATION....5-16,5-21,5-22,5-34
FRONT - INSTALLATION...............22-14
FRONT - INSTALLATION, CRANKSHAFT
OIL SEAL.............9-136,9-208,9-275,9-46
FRONT - INSTALLATION, PROPELLER
SHAFT - HD...........................3-7
FRONT - INSTALLATION, PROPELLER
SHAFT- LD............................3-7
FRONT - INSTALLATION, SEAT..........23-81
FRONT - INSTALLATION, SEAT BACK
CUSHION / COVER...................23-82
FRONT - INSTALLATION, SEAT CUSHION
/ COVER............................23-83
FRONT - REMOVAL........5-13,5-17,5-21,5-33
FRONT - REMOVAL, CRANKSHAFT OIL
SEAL................9-135,9-208,9-275,9-46
FRONT - REMOVAL, PROPELLER SHAFT
- HD ................................3-7
FRONT - REMOVAL, PROPELLER SHAFT-
LD ..................................3-6
FRONT - REMOVAL, SEAT..............23-81
FRONT - REMOVAL, SEAT BACK
CUSHION / COVER...................23-82
FRONT - REMOVAL, SEAT CUSHION /
COVER.............................23-83
FRONT AIR DAM - INSTALLATION........13-2
FRONT AIR DAM - REMOVAL............13-2
FRONT AXLE - 9 1/4 AA -
ADJUSTMENTS
.......................3-59
FRONT AXLE - 9 1/4 AA - DIAGNOSIS
AND TESTING
........................3-54
FRONT AXLE - 9 1/4 AA - INSTALLATION
. . . 3-58
FRONT AXLE - 9 1/4 AA - REMOVAL
......3-57
FRONT AXLE - 9 1/4 AA - SPECIAL
TOOLS
..............................3-64FRONT AXLE - 9 1/4 AA -
SPECIFICATIONS......................3-63
FRONT AXLE - C205F - ADJUSTMENTS....3-32
FRONT AXLE - C205F - DIAGNOSIS AND
TESTING............................3-27
FRONT AXLE - C205F - INSTALLATION.....3-31
FRONT AXLE - C205F - REMOVAL........3-31
FRONT AXLE - C205F - SPECIAL TOOLS . . . 3-40
FRONT AXLE - C205F - SPECIFICATIONS . . . 3-39
FRONT BEARING - INSTALLATION,
OUTPUT SHAFT.....................21-216
FRONT BEARING - REMOVAL, OUTPUT
SHAFT............................21-216
FRONT BRAKE HOSE - INSTALLATION.....5-13
FRONT BUMPER - INSTALLATION.........13-2
FRONT BUMPER - REMOVAL............13-2
FRONT CENTER SEAT BELT -
INSTALLATION......................8O-31
FRONT CENTER SEAT BELT - REMOVAL . . 8O-30
FRONT CENTER SEAT BELT &
RETRACTOR - INSTALLATION...........8O-29
FRONT CENTER SEAT BELT &
RETRACTOR - REMOVAL..............8O-29
FRONT CLUTCH - ASSEMBLY..........21-207
FRONT CLUTCH - DESCRIPTION........21-205
FRONT CLUTCH - DISASSEMBLY.......21-205
FRONT CLUTCH - INSPECTION.........21-206
FRONT CLUTCH - OPERATION.........21-205
FRONT CONTROL MODULE -
DESCRIPTION.....................8W-97-5
FRONT CONTROL MODULE -
DESCRIPTION........................8E-5
FRONT CONTROL MODULE - DIAGNOSIS
AND TESTING.....................8W-97-5
FRONT CONTROL MODULE - DIAGNOSIS
AND TESTING........................8E-5
FRONT CONTROL MODULE -
INSTALLATION....................8W-97-6
FRONT CONTROL MODULE -
INSTALLATION........................8E-5
FRONT CONTROL MODULE - OPERATION . 8W-97-5
FRONT CONTROL MODULE - OPERATION . . 8E-5
FRONT CONTROL MODULE - REMOVAL . 8W-97-6
FRONT CONTROL MODULE - REMOVAL....8E-5
FRONT CROSSMEMBER - INSTALLATION . . 13-22
FRONT CROSSMEMBER - REMOVAL.....13-22
FRONT DOOR GLASS RUN
WEATHERSTRIP - INSTALLATION........23-92
FRONT DOOR GLASS RUN
WEATHERSTRIP - REMOVAL............23-92
FRONT DOOR INNER BELT MOLDING -
INSTALLATION.......................23-93
FRONT DOOR INNER BELT MOLDING -
REMOVAL..........................23-93
FRONT DOOR OUTER BELT MOLDING -
INSTALLATION.......................23-93
FRONT DOOR OUTER BELT MOLDING -
REMOVAL..........................23-92
FRONT FASCIA - INSTALLATION..........13-3
FRONT FASCIA - REMOVAL..............13-2
FRONT FENDER - INSTALLATION........23-39
FRONT FENDER - REMOVAL............23-39
FRONT FRAME RAIL TIP REPLACEMENT
- STANDARD PROCEDURE, LIGHT
DUTY...............................13-4
FRONT HOSE - REMOVAL...............5-12
FRONT MOUNT - INSTALLATION . . . 9-147,9-218,
9-287,9-59
FRONT MOUNT - REMOVAL . . 9-146,9-217,9-286,
9-58
FRONT OUTBOARD SEAT BELT BUCKLE -
INSTALLATION......................8O-38
FRONT OUTBOARD SEAT BELT BUCKLE -
REMOVAL..........................8O-37
FRONT OUTPUT SHAFT SEAL -
INSTALLATION . . . 21-442,21-477,21-508,21-538,
21-572
FRONT OUTPUT SHAFT SEAL -
REMOVAL . 21-441,21-477,21-507,21-537,21-572
FRONT PARKING BRAKE CABLE -
INSTALLATION........................5-38
FRONT PARKING BRAKE CABLE -
REMOVAL
...........................5-36
FRONT SEAL - INSTALLATION, OIL
PUMP
............................21-391
FRONT SEAL - REMOVAL, OIL PUMP
....21-391
FRONT SERVO - ASSEMBLY
...........21-209
FRONT SERVO - CLEANING
...........21-209
DRINDEX 13
Description Group-Page Description Group-Page Description Group-Page

HEATED SEAT MODULE - INSTALLATION . . . 8E-7
HEATED SEAT MODULE - INSTALLATION . . 8G-15
HEATED SEAT MODULE - OPERATION.....8E-6
HEATED SEAT MODULE - OPERATION....8G-14
HEATED SEAT MODULE - REMOVAL.......8E-7
HEATED SEAT MODULE - REMOVAL.....8G-15
HEATED SEAT SENSOR - DESCRIPTION . . . 8G-11
HEATED SEAT SENSOR - DIAGNOSIS
AND TESTING.......................8G-11
HEATED SEAT SENSOR - OPERATION....8G-11
HEATED SEAT SENSOR - REMOVAL......8G-11
HEATED SEAT SWITCH - DESCRIPTION . . . 8G-11
HEATED SEAT SWITCH - DIAGNOSIS
AND TESTING.......................8G-12
HEATED SEAT SWITCH - INSTALLATION . . 8G-13
HEATED SEAT SWITCH - OPERATION.....8G-12
HEATED SEAT SWITCH - REMOVAL......8G-13
HEATED SEAT SYSTEM - DESCRIPTION....8G-7
HEATED SEAT SYSTEM - DIAGNOSIS
AND TESTING........................8G-8
HEATED SEAT SYSTEM - OPERATION.....8G-8
HEATER - 5.9L DIESEL - DESCRIPTION,
ENGINE BLOCK.......................7-37
HEATER - 5.9L DIESEL - INSTALLATION,
ENGINE BLOCK.......................7-38
HEATER - 5.9L DIESEL - OPERATION,
ENGINE BLOCK.......................7-38
HEATER - 5.9L DIESEL - REMOVAL,
ENGINE BLOCK.........................7-38
HEATER - DESCRIPTION, ENGINE BLOCK . . . 7-36
HEATER - DESCRIPTION, FUEL..........14-51
HEATER - DESCRIPTION, INTAKE AIR.....14-80
HEATER - DIAGNOSIS AND TESTING,
ENGINE BLOCK.......................7-36
HEATER - DIAGNOSIS AND TESTING,
FUEL..............................14-52
HEATER - INSTALLATION, ENGINE
BLOCK..............................7-37
HEATER - INSTALLATION, INTAKE AIR....14-80
HEATER - OPERATION, ENGINE BLOCK....7-36
HEATER - OPERATION, FUEL............14-51
HEATER - OPERATION, INTAKE AIR......14-80
HEATER - REMOVAL, ENGINE BLOCK......7-37
HEATER - REMOVAL, INTAKE AIR........14-80
HEATER AND AIR CONDITIONER -
DESCRIPTION........................24-1
HEATER AND AIR CONDITIONER -
OPERATION..........................24-1
HEATER CONTROL - DESCRIPTION, A/C . . . 24-14
HEATER CONTROL - INSTALLATION, A/C . . 24-15
HEATER CONTROL - REMOVAL, A/C......24-15
HEATER CORE - DESCRIPTION..........24-63
HEATER CORE - INSTALLATION.........24-63
HEATER CORE - OPERATION............24-63
HEATER CORE - REMOVAL.............24-63
HEATER INLET HOSE - INSTALLATION....24-64
HEATER INLET HOSE - REMOVAL........24-64
HEATER PERFORMANCE TEST -
DIAGNOSIS AND TESTING..............24-6
HEATER RELAY - DESCRIPTION, FUEL....14-52
HEATER RELAY - DESCRIPTION, INTAKE
AIR ...............................14-82
HEATER RELAY - INSTALLATION, FUEL . . . 14-53
HEATER RELAY - INSTALLATION, INTAKE
AIR ...............................14-82
HEATER RELAY - OPERATION, FUEL......14-52
HEATER RELAY - OPERATION, INTAKE
AIR ...............................14-82
HEATER RELAY - REMOVAL, FUEL.......14-52
HEATER RELAY - REMOVAL, INTAKE AIR . . 14-82
HEATER RETURN HOSE - INSTALLATION . . 24-65
HEATER RETURN HOSE - REMOVAL......24-64
HEIGHT ADJUSTMENT - 4WD (LD) -
STANDARD PROCEDURE.................2-3
HEIGHT MEASUREMENT - 4WD (LD) -
STANDARD PROCEDURE.................2-3
HEMI ENGINE - INSTALLATION, 3.7L/4.7L
AND 5.7L......................24-59,24-73
HEMI ENGINE - REMOVAL, 3.7L/4.7L
AND 5.7L......................24-57,24-71
HIGH BEAM INDICATOR - DESCRIPTION
. . 8J-28
HIGH BEAM INDICATOR - OPERATION
....8J-28
HIGH MOUNTED STOP LAMP -
INSTALLATION, CENTER
...............8L-11
HIGH MOUNTED STOP LAMP -
REMOVAL, CENTER
...................8L-11
HIGH MOUNTED STOP LAMP UNIT -
INSTALLATION, CENTER
...............8L-11HIGH MOUNTED STOP LAMP UNIT -
REMOVAL, CENTER...................8L-11
HIGH PRESSURE RELIEF VALVE -
DESCRIPTION.......................24-48
HIGH PRESSURE RELIEF VALVE -
OPERATION.........................24-48
HIGH SPEEDS - DESCRIPTION, TIRE
PRESSURE..........................22-7
HIGH/LOW RELAY - DESCRIPTION,
WIPER.............................8R-20
HIGH/LOW RELAY - DIAGNOSIS AND
TESTING, WIPER.....................8R-21
HIGH/LOW RELAY - INSTALLATION,
WIPER.............................8R-22
HIGH/LOW RELAY - OPERATION, WIPER . . 8R-20
HIGH/LOW RELAY - REMOVAL, WIPER . . . 8R-21
HIGH-PRESSURE FUEL LINE LEAKS -
DIAGNOSIS AND TESTING.............14-58
HINGE - INSTALLATION.....23-16,23-22,23-31,
23-46
HINGE - INSTALLATION, CENTER SEAT
BACK..............................23-79
HINGE - REMOVAL....23-16,23-22,23-31,23-46
HINGE - REMOVAL, CENTER SEAT BACK . . 23-78
HINGE COVER - INSTALLATION, CENTER
SEAT BACK INERTIA..................23-77
HINGE COVER - REMOVAL, CENTER
SEAT BACK INERTIA..................23-77
HITCH - INSTALLATION, TRAILER........13-25
HITCH - REMOVAL, TRAILER...........13-25
HOAT COOLANT - DESCRIPTION..........7-32
HOISTING - STANDARD PROCEDURE......0-20
HOLDDOWN - DESCRIPTION, BATTERY . . . 8F-14
HOLDDOWN - INSTALLATION, BATTERY . . . 8F-14
HOLDDOWN - OPERATION, BATTERY.....8F-14
HOLDDOWN - REMOVAL, BATTERY......8F-14
HOLDER - INSTALLATION, CUP.........23-51
HOLDER - REMOVAL, CUP.............23-51
HOLDING CLUTCHES - DESCRIPTION....21-371
HOLDING CLUTCHES - OPERATION.....21-372
HOLE PLUG - INSTALLATION, CAMSHAFT
CORE..............................9-206
HOLE PLUG - REMOVAL, CAMSHAFT
CORE..............................9-205
HOLE REPAIR - DESCRIPTION,
THREADED........................Intro.-8
HONING - STANDARD PROCEDURE,
CYLINDER BORE.................9-128,9-38
HOOD - INSTALLATION................23-47
HOOD - REMOVAL....................23-46
HOOK - INSTALLATION, COAT...........23-66
HOOK - REMOVAL, COAT..............23-66
HOOK ASSEMBLY - INSTALLATION,
FRONT TOW........................13-23
HOOK ASSEMBLY - REMOVAL, FRONT
TOW ..............................13-23
HORN - DIAGNOSIS AND TESTING.......8H-1
HORN - INSTALLATION.................8H-2
HORN - REMOVAL....................8H-2
HORN SWITCH - DESCRIPTION..........8H-2
HORN SWITCH - DIAGNOSIS AND
TESTING............................8H-2
HORN SYSTEM - DESCRIPTION..........8H-1
HORN SYSTEM - DIAGNOSIS AND
TESTING............................8H-1
HORN SYSTEM - OPERATION............8H-1
HOSE - GEAR TO COOLER -
INSTALLATION, RETURN..........19-44,19-45
HOSE - GEAR TO COOLER - REMOVAL,
RETURN......................19-44,19-45
HOSE - INSTALLATION, FRONT BRAKE.....5-13
HOSE - INSTALLATION, HEATER INLET....24-64
HOSE - INSTALLATION, HEATER RETURN . 24-65
HOSE - INSTALLATION, PRESSURE . 19-44,19-45
HOSE - INSTALLATION, REAR BRAKE......5-12
HOSE - REMOVAL, FRONT..............5-12
HOSE - REMOVAL, HEATER INLET.......24-64
HOSE - REMOVAL, HEATER RETURN.....24-64
HOSE - REMOVAL, PRESSURE.....19-44,19-45
HOSE - REMOVAL, REAR BRAKE
.........5-11
HOSE - RESERVOIR TO COOLER -
INSTALLATION, RETURN
..........19-44,19-45
HOSE - RESERVOIR TO COOLER -
REMOVAL, RETURN
.............19-44,19-45
HOSE ASSEMBLY - INSTALLATION, REAR
TUBE
...............................5-13
HOSE ASSEMBLY - REMOVAL, REAR
TUBE
...............................5-12HOSE CLAMPS - DESCRIPTION...........7-3
HOSE CLAMPS - OPERATION.............7-5
HOSES/TUBES - DESCRIPTION, WASHER . 8R-11
HOSES/TUBES - OPERATION, WASHER . . . 8R-11
HOUSING - ASSEMBLY, HVAC...........24-35
HOUSING - DIAGNOSIS AND TESTING,
CLUTCH..............................6-7
HOUSING - DISASSEMBLY, HVAC........24-35
HOUSING - INSTALLATION, CLUTCH.......6-9
HOUSING - INSTALLATION, GEAR........9-300
HOUSING - INSTALLATION, HVAC........24-36
HOUSING - INSTALLATION, ROCKER.....9-255
HOUSING - REMOVAL, CLUTCH...........6-9
HOUSING - REMOVAL, GEAR...........9-299
HOUSING - REMOVAL, HVAC...........24-34
HOUSING - REMOVAL, ROCKER.........9-255
HOUSING BUSHING AND SEAL -
INSTALLATION, EXTENSION...........21-440
HOUSING BUSHING AND SEAL -
REMOVAL, EXTENSION...............21-440
HOUSING COVER - INSTALLATION, GEAR . 9-301
HOUSING COVER - REMOVAL, GEAR.....9-301
HOUSING FLUID LEAK - DIAGNOSIS AND
TESTING, CONVERTER.........21-144,21-318
HOUSING SEAL - INSTALLATION,
ADAPTER...............21-128,21-364,21-85
HOUSING SEAL - INSTALLATION,
EXTENSION . 21-128,21-201,21-507,21-536,21-85
HOUSING SEAL - REMOVAL, ADAPTER . . 21-128,
21-364,21-85
HOUSING SEAL - REMOVAL,
EXTENSION . 21-128,21-201,21-507,21-536,21-85
HOUSING SEAL AND DUST BOOT -
INSTALLATION, EXTENSION.....21-476,21-571
HOUSING SEAL AND DUST BOOT -
REMOVAL, EXTENSION.........21-476,21-571
HOW TO USE WIRING DIAGRAMS -
DESCRIPTION.....................8W-01-1
H-SECTION REPLACEMENT - STANDARD
PROCEDURE, REAR FRAME............13-13
HUB / BEARING - INSTALLATION.........2-32
HUB / BEARING - REMOVAL.............2-31
HVAC HOUSING - ASSEMBLY...........24-35
HVAC HOUSING - DISASSEMBLY........24-35
HVAC HOUSING - INSTALLATION........24-36
HVAC HOUSING - REMOVAL............24-34
HYDRAULIC BOOSTER - DIAGNOSIS
AND TESTING........................5-30
HYDRAULIC LASH ADJUSTER -
DIAGNOSIS AND TESTING.........9-125,9-32
HYDRAULIC PRESSURE TEST -
DIAGNOSIS AND TESTING......21-141,21-316
HYDRAULIC SCHEMATICS, SCHEMATICS
AND DIAGRAMS..............21-176,21-337
HYDRAULIC TAPPETS - DIAGNOSIS AND
TESTING...........................9-210
HYDRAULIC TAPPETS - INSTALLATION . . . 9-211
HYDRAULIC TAPPETS - REMOVAL.......9-211
HYDROBOOST - INSTALLATION..........5-27
HYDROBOOST - INSTALLATION, ALL
EXCEPT.............................5-27
HYDROBOOST - REMOVAL..............5-26
HYDROBOOST - REMOVAL, ALL EXCEPT . . . 5-26
HYDRO-BOOST BRAKE BOOSTER -
INSTALLATION........................5-32
HYDRO-BOOST BRAKE BOOSTER -
REMOVAL
...........................5-31
HYDROFORM FENDER RAIL REPAIR -
STANDARD PROCEDURE
...............13-11
HYDROSTATIC LOCK - STANDARD
PROCEDURE
...................9-190,9-240
IDENTIFICATION - DESCRIPTION,
FASTENER
.........................Intro.-5
IDENTIFICATION AND INFORMATION -
DESCRIPTION, SECTION
.............8W-01-6
IDENTIFICATION NUMBER -
DESCRIPTION, VEHICLE
..............Intro.-1
IDLE AIR CONTROL MOTOR -
DESCRIPTION
.......................14-28
IDLE AIR CONTROL MOTOR -
INSTALLATION
.......................14-29
IDLE AIR CONTROL MOTOR -
OPERATION
.........................14-28
IDLE AIR CONTROL MOTOR - REMOVAL
. . 14-29
IDLER SHAFT - INSTALLATION
......9-179,9-81
IDLER SHAFT - REMOVAL
..........9-179,9-81
IGNITION - SPECIFICATIONS, TORQUE
.....8I-3
16 INDEXDR
Description Group-Page Description Group-Page Description Group-Page

RAIL - DESCRIPTION, FUEL INJECTOR....14-78
RAIL - INSTALLATION, FUEL............14-15
RAIL - INSTALLATION, FUEL INJECTOR . . . 14-78
RAIL - OPERATION, FUEL..............14-12
RAIL - OPERATION, FUEL INJECTOR.....14-78
RAIL - REMOVAL, FUEL...............14-13
RAIL - REMOVAL, FUEL INJECTOR.......14-78
RAIL REPAIR - STANDARD PROCEDURE,
HYDROFORM FENDER.................13-11
RAIL TIP REPLACEMENT - STANDARD
PROCEDURE, LIGHT DUTY FRONT
FRAME..............................13-4
RAIL WEATHERSTRIP - INSTALLATION,
DRIP..............................23-91
RAIL WEATHERSTRIP - REMOVAL, DRIP . . 23-91
RAIL WEATHERSTRIP RETAINER -
INSTALLATION, DRIP.................23-92
RAIL WEATHERSTRIP RETAINER -
REMOVAL, DRIP.....................23-92
RANGE SENSOR - DESCRIPTION,
TRANSMISSION...............21-263,21-405
RANGE SENSOR - INSTALLATION,
TRANSMISSION.....................21-266
RANGE SENSOR - OPERATION,
TRANSMISSION...............21-263,21-405
RANGE SENSOR - REMOVAL,
TRANSMISSION.....................21-265
RANGE SENSOR (TRS) - DIAGNOSIS
AND TESTING, TRANSMISSION........21-264
RATINGS, SPECIFICATIONS -
GENERATOR........................8F-20
RE TRANSMISSION, SPECIAL TOOLS....21-191
READING LAMP - DESCRIPTION.........8L-28
READING LAMP - INSTALLATION........8L-29
READING LAMP - OPERATION..........8L-28
READING LAMP - REMOVAL............8L-28
READING/COURTESY LAMP
REPLACEMENT - STANDARD
PROCEDURE.........................8M-3
REAR AXLE - 10 1/2 AA -
ADJUSTMENTS......................3-116
REAR AXLE - 10 1/2 AA - DIAGNOSIS
AND TESTING.......................3-112
REAR AXLE - 10 1/2 AA - INSTALLATION . . 3-116
REAR AXLE - 10 1/2 AA - REMOVAL.....3-115
REAR AXLE - 10 1/2 AA - SPECIAL
TOOLS.............................3-120
REAR AXLE - 10 1/2 AA -
SPECIFICATIONS.....................3-120
REAR AXLE - 11 1/2 AA -
ADJUSTMENTS......................3-144
REAR AXLE - 11 1/2 AA - DIAGNOSIS
AND TESTING.......................3-140
REAR AXLE - 11 1/2 AA - INSTALLATION . . 3-144
REAR AXLE - 11 1/2 AA - REMOVAL.....3-143
REAR AXLE - 11 1/2 AA - SPECIAL
TOOLS.............................3-148
REAR AXLE - 11 1/2 AA -
SPECIFICATIONS.....................3-148
REAR AXLE - 9 1/4 - ADJUSTMENTS......3-83
REAR AXLE - 9 1/4 - DIAGNOSIS AND
TESTING............................3-80
REAR AXLE - 9 1/4 - INSTALLATION......3-83
REAR AXLE - 9 1/4 - REMOVAL..........3-83
REAR AXLE - 9 1/4 - SPECIAL TOOLS.....3-90
REAR AXLE - 9 1/4 - SPECIFICATIONS.....3-90
REAR BEARING - INSTALLATION,
OUTPUT SHAFT.....................21-217
REAR BEARING - REMOVAL, OUTPUT
SHAFT............................21-216
REAR BRAKE HOSE - INSTALLATION......5-12
REAR BRAKE HOSE - REMOVAL..........5-11
REAR BUMPER - INSTALLATION..........13-4
REAR BUMPER - REMOVAL.............13-3
REAR CAB BACK PANEL TRIM -
INSTALLATION.......................23-69
REAR CAB BACK PANEL TRIM -
REMOVAL..........................23-68
REAR CABLE - INSTALLATION, LEFT......5-39
REAR CABLE - INSTALLATION, RIGHT.....5-38
REAR CABLE - REMOVAL, LEFT..........5-38
REAR CABLE - REMOVAL, RIGHT
.........5-37
REAR CENTER SEAT BELT &
RETRACTOR - INSTALLATION
...........8O-45
REAR CENTER SEAT BELT &
RETRACTOR - REMOVAL
..............8O-44
REAR CLUTCH - ASSEMBLY
...........21-249
REAR CLUTCH - CLEANING
...........21-248REAR CLUTCH - DESCRIPTION.........21-247
REAR CLUTCH - DISASSEMBLY........21-248
REAR CLUTCH - INSPECTION..........21-248
REAR CLUTCH - OPERATION..........21-248
REAR DOOR GLASS RUN
WEATHERSTRIP - INSTALLATION........23-93
REAR DOOR GLASS RUN
WEATHERSTRIP - REMOVAL............23-93
REAR DOOR INNER BELT MOLDING -
INSTALLATION.......................23-94
REAR DOOR INNER BELT MOLDING -
REMOVAL..........................23-94
REAR DOOR OUTER BELT MOLDING -
INSTALLATION.......................23-94
REAR DOOR OUTER BELT MOLDING -
REMOVAL..........................23-93
REAR DOOR SILL TRIM COVER -
INSTALLATION.......................23-71
REAR DOOR SILL TRIM COVER -
REMOVAL..........................23-71
REAR DRUM IN HAT BRAKE - CLEANING . . . 5-39
REAR DRUM IN HAT BRAKE -
INSPECTION.........................5-39
REAR DUAL WHEELS - INSTALLATION.....5-35
REAR DUAL WHEELS - REMOVAL........5-34
REAR FENDER - INSTALLATION.........23-44
REAR FENDER - REMOVAL.............23-44
REAR FRAME H-SECTION REPLACEMENT
- STANDARD PROCEDURE.............13-13
REAR MOUNT - INSTALLATION....9-149,9-220,
9-288,9-61
REAR MOUNT - REMOVAL . . . 9-149,9-220,9-288,
9-61
REAR OIL SEAL RETAINER -
INSTALLATION, CRANKSHAFT......9-210,9-277
REAR OIL SEAL RETAINER - REMOVAL,
CRANKSHAFT..................9-209,9-277
REAR OUTBOARD SEAT BELT &
RETRACTOR - INSTALLATION...........8O-47
REAR OUTBOARD SEAT BELT &
RETRACTOR - REMOVAL..............8O-46
REAR PARK BRAKE CABLE -
INSTALLATION........................5-38
REAR PARK BRAKE CABLE - REMOVAL....5-37
REAR PROPELLER SHAFT -
INSTALLATION.........................3-8
REAR PROPELLER SHAFT - REMOVAL......3-8
REAR SEAL AREA LEAKS - DIAGNOSIS
AND TESTING..............9-137,9-209,9-65
REAR SERVO - ASSEMBLY............21-251
REAR SERVO - CLEANING............21-251
REAR SERVO - DESCRIPTION..........21-251
REAR SERVO - DISASSEMBLY.........21-251
REAR SERVO - OPERATION...........21-251
REAR TUBE / HOSE ASSEMBLY -
INSTALLATION........................5-13
REAR TUBE / HOSE ASSEMBLY -
REMOVAL...........................5-12
REAR VIEW MIRROR - REMOVAL........23-69
REAR VIEW MIRROR SUPPORT
BRACKET - INSTALLATION.............23-70
REAR WHEEL ANTILOCK - DIAGNOSIS
AND TESTING
........................5-48
REAR WHEEL INSTALLATION -
STANDARD PROCEDURE, DUAL
.........22-12
REAR WHEEL SPEED SENSOR -
DIAGNOSIS AND TESTING
..............5-49
REAR WHEEL SPEED SENSOR -
INSTALLATION
........................5-48
REAR WHEEL SPEED SENSOR -
REMOVAL
...........................5-48
REAR WHEELHOUSE SPLASH SHIELD -
INSTALLATION
.......................23-41
REAR WHEELHOUSE SPLASH SHIELD -
REMOVAL
..........................23-41
REAR WINDOW DEFOGGER RELAY -
DESCRIPTION
........................8G-2
REAR WINDOW DEFOGGER RELAY -
INSTALLATION
.......................8G-4
REAR WINDOW DEFOGGER RELAY -
OPERATION
..........................8G-3
REAR WINDOW DEFOGGER RELAY -
REMOVAL
...........................8G-3
REAR WINDOW DEFOGGER SWITCH -
DESCRIPTION
........................8G-4
REAR WINDOW DEFOGGER SWITCH -
OPERATION
..........................8G-4REAR WINDOW DEFOGGER SYSTEM -
DIAGNOSIS AND TESTING..............8G-2
RECEIVER - INSTALLATION, ASH........23-51
RECEIVER - REMOVAL, ASH............23-50
RECIRCULATION DOOR - INSTALLATION . . 24-40
RECIRCULATION DOOR - REMOVAL......24-39
RECIRCULATION DOOR ACTUATOR -
DESCRIPTION.......................24-24
RECIRCULATION DOOR ACTUATOR -
INSTALLATION.......................24-25
RECIRCULATION DOOR ACTUATOR -
OPERATION.........................24-24
RECIRCULATION DOOR ACTUATOR -
REMOVAL..........................24-24
RECOVERY - STANDARD PROCEDURE,
REFRIGERANT.......................24-47
RECOVERY CONTAINER- GAS ENGINES -
DESCRIPTION, COOLANT...............7-33
RECOVERY CONTAINER- GAS ENGINES -
INSTALLATION, COOLANT...............7-33
RECOVERY CONTAINER- GAS ENGINES -
OPERATION, COOLANT.................7-33
RECOVERY CONTAINER- GAS ENGINES -
REMOVAL, COOLANT..................7-33
REDUCER - DESCRIPTION, SEAT BELT
TENSION...........................8O-53
REDUCER - DIAGNOSIS AND TESTING,
SEAT BELT TENSION..................8O-54
REDUCER - OPERATION, SEAT BELT
TENSION...........................8O-54
REFACING - STANDARD PROCEDURE . 9-202,9-28
REFACING - STANDARD PROCEDURE,
CYLINDER BLOCK....................9-264
REFILLING COOLING SYSTEM - ALL GAS
ENGINES - STANDARD PROCEDURE......7-18
REFILLING COOLING SYSTEM 5.9L
DIESEL ENGINE - STANDARD
PROCEDURE.........................7-19
REFRIGERANT - DESCRIPTION..........24-67
REFRIGERANT - OPERATION............24-67
REFRIGERANT LINE - DESCRIPTION......24-42
REFRIGERANT LINE COUPLER -
DESCRIPTION.......................24-67
REFRIGERANT LINE COUPLER -
INSTALLATION.......................24-68
REFRIGERANT LINE COUPLER -
OPERATION.........................24-67
REFRIGERANT LINE COUPLER -
REMOVAL..........................24-68
REFRIGERANT LINES - OPERATION......24-42
REFRIGERANT OIL - DESCRIPTION......24-68
REFRIGERANT OIL - OPERATION........24-69
REFRIGERANT OIL LEVEL - STANDARD
PROCEDURE........................24-69
REFRIGERANT RECOVERY - STANDARD
PROCEDURE........................24-47
REFRIGERANT SYSTEM CHARGE -
STANDARD PROCEDURE...............24-47
REFRIGERANT SYSTEM EVACUATE -
STANDARD PROCEDURE...............24-47
REFRIGERANT SYSTEM LEAKS -
DIAGNOSIS AND TESTING.............24-44
REFRIGERANT SYSTEM SERVICE
EQUIPMENT - STANDARD PROCEDURE . . . 24-46
REGULATOR - DESCRIPTION, FUEL
FILTER/PRESSURE.....................14-5
REGULATOR - DESCRIPTION, VOLTAGE . . . 8F-25
REGULATOR - MANUAL - INSTALLATION,
WINDOW......................23-27,23-35
REGULATOR - MANUAL - REMOVAL,
WINDOW......................23-26,23-35
REGULATOR - OPERATION, FUEL
FILTER/PRESSURE.....................14-6
REGULATOR - OPERATION, VOLTAGE.....8F-25
REGULATOR - POWER - INSTALLATION,
WINDOW......................23-26,23-34
REGULATOR - POWER - REMOVAL,
WINDOW......................23-25,23-34
RELAY - DESCRIPTION, A/C
COMPRESSOR CLUTCH...............24-13
RELAY - DESCRIPTION, FOG LAMP......8L-12
RELAY - DESCRIPTION, FUEL HEATER
....14-52
RELAY - DESCRIPTION, FUEL PUMP
.....14-27
RELAY - DESCRIPTION, INTAKE AIR
HEATER
............................14-82
RELAY - DESCRIPTION, PARK LAMP
.....8L-20
RELAY - DESCRIPTION, REAR WINDOW
DEFOGGER
..........................8G-2
26 INDEXDR
Description Group-Page Description Group-Page Description Group-Page