fold seats DODGE RAM 2003 Service User Guide

nents, caused by condenser air flow restriction or an
overcharge of refrigerant.
OPERATION
OPERATION
The compressor is driven by the engine through an
electric clutch, drive rotor and belt arrangement. The
compressor is lubricated by refrigerant oil that is cir-
culated throughout the refrigerant system with the
refrigerant.
The compressor draws in low-pressure refrigerant
vapor from the evaporator through its suction port. It
then compresses the refrigerant into a high-pressure,
high-temperature refrigerant vapor, which is then
pumped to the condenser through the compressor dis-
charge port.
The compressor cannot be repaired. If faulty or
damaged, the entire compressor assembly must be
replaced. The compressor clutch, pulley and clutch
coil are available for service.
OPERATION - HIGH PRESSURE RELIEF VALVE
The high pressure relief valve vents the system
when a discharge pressure of 3445 to 4135 kPa (500
to 600 psi) or above is reached. The valve closes
when a minimum discharge pressure of 2756 kPa
(400 psi) is reached.
The high pressure relief valve vents only enough
refrigerant to reduce the system pressure, and then
re-seats itself. The majority of the refrigerant is con-
served in the system. If the valve vents refrigerant, it
does not mean that the valve is faulty.
The high pressure relief valve is a factory-cali-
brated unit. The valve cannot be adjusted or
repaired, and must not be removed or otherwise dis-
turbed. The valve is only serviced as a part of the
compressor assembly.
DIAGNOSIS AND TESTING - A/C COMPRESSOR
NOISE
When investigating an air conditioning related
noise, you must first know the conditions under
which the noise occurs. These conditions include:
weather, vehicle speed, transmission in gear or neu-
tral, engine speed, engine temperature, and any
other special conditions. Noises that develop during
air conditioning operation can often be misleading.
For example: What sounds like a failed front bearing
or connecting rod, may be caused by loose bolts, nuts,
mounting brackets, or a loose compressor clutch
assembly.
Drive belts are speed sensitive. At different engine
speeds and depending upon belt tension, belts can
develop noises that are mistaken for a compressornoise. Improper belt tension can cause a misleading
noise when the compressor clutch is engaged, which
may not occur when the compressor clutch is disen-
gaged. Check the serpentine drive belt condition and
tension as described in Cooling before beginning this
procedure.
(1) Select a quiet area for testing. Duplicate the
complaint conditions as much as possible. Switch the
compressor on and off several times to clearly iden-
tify the compressor noise. Listen to the compressor
while the clutch is engaged and disengaged. Probe
the compressor with an engine stethoscope or a long
screwdriver with the handle held to your ear to bet-
ter localize the source of the noise.
(2) Loosen all of the compressor mounting hard-
ware and retighten. Tighten the compressor clutch
mounting nut. Be certain that the clutch coil is
mounted securely to the compressor, and that the
clutch plate and rotor are properly aligned and have
the correct air gap. (Refer to 24 - HEATING & AIR
CONDITIONING/CONTROLS/A/C COMPRESSOR
CLUTCH - INSTALLATION)
(3) To duplicate a high-ambient temperature condi-
tion (high head pressure), restrict the air flow
through the condenser. Install a manifold gauge set
to be certain that the discharge pressure does not
exceed 2760 kPa (400 psi).
(4) Check the refrigerant system plumbing for
incorrect routing, rubbing or interference, which can
cause unusual noises. Also check the refrigerant lines
for kinks or sharp bends that will restrict refrigerant
flow, which can cause noises. (Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING - CAU-
TION)
(5) If the noise is from opening and closing of the
high pressure relief valve, evacuate and recharge the
refrigerant system. (Refer to 24 - HEATING & AIR
CONDITIONING/PLUMBING - STANDARD PRO-
CEDURE - REFRIGERANT SYSTEM EVACUATE)
(Refer to 24 - HEATING & AIR CONDITIONING/
PLUMBING - STANDARD PROCEDURE - REFRIG-
ERANT SYSTEM CHARGE) If the high pressure
relief valve still does not seat properly, replace the
compressor.
(6) If the noise is from liquid slugging on the suc-
tion line. Check the refrigerant oil level and the
refrigerant system charge. (Refer to 24 - HEATING
& AIR CONDITIONING/PLUMBING/REFRIGER-
ANT OIL - STANDARD PROCEDURE) (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING -
SPECIFICATIONS - CHARGE CAPACITY) If either
is out of specification range reclaim, evacuate and
recharge the refrigerent system(Refer to 24 - HEAT-
ING & AIR CONDITIONING/PLUMBING/REFRIG-
ERANT - STANDARD PROCEDURE), (Refer to 24 -
HEATING & AIR CONDITIONING/PLUMBING/RE-
24 - 36 PLUMBINGDR
A/C COMPRESSOR (Continued)

INDICATOR - DESCRIPTION, UPSHIFT....8J-40
INDICATOR - DESCRIPTION, WAIT-TO-
START .............................8J-42
INDICATOR - DESCRIPTION, WASHER
FLUID..............................8J-42
INDICATOR - DESCRIPTION, WATER-IN-
FUEL..............................8J-43
INDICATOR - DIAGNOSIS AND TESTING,
BRAKE.............................8J-19
INDICATOR - OPERATION, ABS..........8J-17
INDICATOR - OPERATION, AIRBAG.......8J-18
INDICATOR - OPERATION, BRAKE/PARK
BRAKE.............................8J-19
INDICATOR - OPERATION, CARGO LAMP . . 8J-20
INDICATOR - OPERATION, CHECK
GAUGES............................8J-21
INDICATOR - OPERATION, CRUISE.......8J-22
INDICATOR - OPERATION, DOOR AJAR . . . 8J-23
INDICATOR - OPERATION, ETC..........8J-25
INDICATOR - OPERATION, GEAR
SELECTOR..........................8J-27
INDICATOR - OPERATION, HIGH BEAM....8J-28
INDICATOR - OPERATION, LAMP OUT....8J-28
INDICATOR - OPERATION, LOW FUEL.....8J-29
INDICATOR - OPERATION, OVERDRIVE
OFF ...............................8J-33
INDICATOR - OPERATION, SEATBELT.....8J-34
INDICATOR - OPERATION, SECURITY.....8J-35
INDICATOR - OPERATION, SERVICE 4WD . . 8J-36
INDICATOR - OPERATION, TRANS TEMP . . 8J-38
INDICATOR - OPERATION, TURN SIGNAL . . 8J-39
INDICATOR - OPERATION, UPSHIFT......8J-40
INDICATOR - OPERATION, WAIT-TO-
START .............................8J-42
INDICATOR - OPERATION, WASHER
FLUID..............................8J-42
INDICATOR - OPERATION, WATER-IN-
FUEL..............................8J-43
INDICATOR LAMP - DESCRIPTION,
SENTRY KEY IMMOBILIZER SYSTEM......8Q-5
INDICATOR LAMP - OPERATION,
SENTRY KEY IMMOBILIZER SYSTEM......8Q-5
INDICATOR LAMP (MIL) - DESCRIPTION,
MALFUNCTION.......................8J-30
INDICATOR LAMP (MIL) - OPERATION,
MALFUNCTION.......................8J-30
INDICATOR TEST - STANDARD
PROCEDURE, BUILT-IN................8F-10
INDICATORS - DIAGNOSIS AND
TESTING, TREAD WEAR................22-7
INERTIA HINGE COVER - INSTALLATION,
CENTER SEAT BACK..................23-78
INERTIA HINGE COVER - REMOVAL,
CENTER SEAT BACK..................23-78
INFLATION PRESSURES - DESCRIPTION,
TIRE................................22-6
INFO CENTER - DESCRIPTION,
ELECTRONIC VEHICLE.................8M-7
INFO CENTER - INSTALLATION,
ELECTRONIC VEHICLE................8M-10
INFO CENTER - OPERATION,
ELECTRONIC VEHICLE.................8M-8
INFO CENTER - REMOVAL, ELECTRONIC
VEHICLE...........................8M-10
INITIAL OPERATION - STANDARD
PROCEDURE, POWER STEERING
PUMP.............................19-39
INITIALIZATION, STANDARD PROCEDURE
- SENTRY KEY IMMOBILIZER SYSTEM....8Q-3
INJECTION PUMP - DESCRIPTION, FUEL . . 14-64
INJECTION PUMP - INSTALLATION, FUEL . 14-67
INJECTION PUMP - OPERATION, FUEL
....14-64
INJECTION PUMP - REMOVAL, FUEL
.....14-65
INJECTION PUMP TIMING - DIAGNOSIS
AND TESTING, FUEL
..................14-65
INJECTOR - DESCRIPTION, FUEL
. . . 14-32,14-85
INJECTOR - INSTALLATION, FUEL
........14-87
INJECTOR - OPERATION, FUEL
.....14-32,14-86
INJECTOR - REMOVAL, FUEL
...........14-87
INJECTOR FIRING ORDER, DIESEL -
FUEL
..............................14-60
INJECTOR RAIL - DESCRIPTION, FUEL
....14-89
INJECTOR RAIL - INSTALLATION, FUEL
. . . 14-90
INJECTOR RAIL - OPERATION, FUEL
.....14-89
INJECTOR RAIL - REMOVAL, FUEL
.......14-89
INLET AIR TEMPERATURE SENSOR/
PRESSURE SENSOR - DESCRIPTION
.....14-90INLET AIR TEMPERATURE SENSOR/
PRESSURE SENSOR - INSTALLATION.....14-90
INLET AIR TEMPERATURE SENSOR/
PRESSURE SENSOR - OPERATION.......14-90
INLET AIR TEMPERATURE SENSOR/
PRESSURE SENSOR - REMOVAL........14-90
INLET FILTER - INSTALLATION..........14-23
INLET FILTER - REMOVAL..............14-23
INNER BELT MOLDING - INSTALLATION,
FRONT DOOR.......................23-93
INNER BELT MOLDING - INSTALLATION,
REAR DOOR........................23-94
INNER BELT MOLDING - REMOVAL,
FRONT DOOR.......................23-93
INNER BELT MOLDING - REMOVAL,
REAR DOOR........................23-94
INPUT - OPERATION, ASD SENSE - PCM . . . 8I-6
INPUT CLUTCH ASSEMBLY - ASSEMBLY . 21-552
INPUT CLUTCH ASSEMBLY -
DESCRIPTION......................21-549
INPUT CLUTCH ASSEMBLY -
DISASSEMBLY......................21-550
INPUT CLUTCH ASSEMBLY - OPERATION . 21-549
INPUT SHAFT SEAL - INSTALLATION,
STEERING GEAR.....................19-28
INPUT SHAFT SEAL - REMOVAL,
STEERING GEAR.....................19-25
INPUT SPEED SENSOR - DESCRIPTION . . 21-558
INPUT SPEED SENSOR - INSTALLATION . 21-559
INPUT SPEED SENSOR - OPERATION....21-558
INPUT SPEED SENSOR - REMOVAL.......21-559
INSERTS - INSTALLATION, SPRING TIP....2-42
INSERTS - REMOVAL, SPRING TIP........2-41
INSIDE HANDLE ACTUATOR -
INSTALLATION..................23-22,23-32
INSIDE HANDLE ACTUATOR - REMOVAL . . 23-22,
23-31
INSTALLED - INSTALLATION, FRONT OIL
SEAL - FRONT COVER.................9-384
INSTALLED - REMOVAL, FRONT OIL
SEAL - FRONT COVER.................9-384
INSTRUMENT CLUSTER - ASSEMBLY.....8J-15
INSTRUMENT CLUSTER - DESCRIPTION . . . 8J-2
INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING.......................8J-10
INSTRUMENT CLUSTER - DISASSEMBLY . . 8J-14
INSTRUMENT CLUSTER - INSTALLATION . . 8J-16
INSTRUMENT CLUSTER - OPERATION.....8J-6
INSTRUMENT CLUSTER - REMOVAL.....8J-14
INSTRUMENT PANEL ANTENNA CABLE -
INSTALLATION.......................8A-7
INSTRUMENT PANEL ANTENNA CABLE -
REMOVAL...........................8A-6
INSTRUMENT PANEL ASSEMBLY -
INSTALLATION.......................23-56
INSTRUMENT PANEL ASSEMBLY -
REMOVAL..........................23-53
INSTRUMENT PANEL CENTER BEZEL -
INSTALLATION.......................23-58
INSTRUMENT PANEL CENTER BEZEL -
REMOVAL..........................23-58
INSTRUMENT PANEL DRIVER SIDE
BEZEL - INSTALLATION................23-59
INSTRUMENT PANEL DRIVER SIDE
BEZEL - REMOVAL...................23-58
INSTRUMENT PANEL DUCTS -
INSTALLATION.......................24-29
INSTRUMENT PANEL DUCTS - REMOVAL . 24-29
INSTRUMENT PANEL HEADLAMP
SWITCH BEZEL - INSTALLATION.........23-57
INSTRUMENT PANEL HEADLAMP
SWITCH BEZEL - REMOVAL............23-57
INSTRUMENT PANEL LOWER
SURROUND - INSTALLATION...........23-60
INSTRUMENT PANEL LOWER
SURROUND - REMOVAL...............23-60
INSTRUMENT PANEL TOP COVER -
INSTALLATION.......................23-60
INSTRUMENT PANEL TOP COVER -
REMOVAL..........................23-59
INTAKE AIR HEATER - DESCRIPTION.....14-91
INTAKE AIR HEATER - INSTALLATION
.....14-91
INTAKE AIR HEATER - OPERATION
.......14-91
INTAKE AIR HEATER - REMOVAL
........14-91
INTAKE AIR HEATER RELAY -
DESCRIPTION
.......................14-92
INTAKE AIR HEATER RELAY -
INSTALLATION
.......................14-93INTAKE AIR HEATER RELAY -
OPERATION.........................14-92
INTAKE AIR HEATER RELAY - REMOVAL . . 14-93
INTAKE AIR TEMPERATURE SENSOR -
DESCRIPTION.......................14-36
INTAKE AIR TEMPERATURE SENSOR -
INSTALLATION.......................14-38
INTAKE AIR TEMPERATURE SENSOR -
OPERATION.........................14-36
INTAKE AIR TEMPERATURE SENSOR -
REMOVAL..........................14-36
INTAKE AIR TEMPERATURE SENSOR/
MAP SENSOR - DESCRIPTION..........14-93
INTAKE AIR TEMPERATURE SENSOR/
MAP SENSOR - INSTALLATION..........14-94
INTAKE AIR TEMPERATURE SENSOR/
MAP SENSOR - OPERATION............14-93
INTAKE AIR TEMPERATURE SENSOR/
MAP SENSOR - REMOVAL.............14-93
INTAKE MANIFOLD - CLEANING....9-158,9-219,
9-275,9-346,9-402
INTAKE MANIFOLD - DESCRIPTION . 9-157,9-219,
9-274,9-401,9-71
INTAKE MANIFOLD - INSPECTION . . 9-158,9-219,
9-275,9-346,9-402
INTAKE MANIFOLD - INSTALLATION.....9-158,
9-219,9-275,9-346,9-402,9-72
INTAKE MANIFOLD - OPERATION........9-274
INTAKE MANIFOLD - REMOVAL....9-157,9-219,
9-275,9-345,9-401,9-72
INTAKE MANIFOLD LEAKAGE -
DIAGNOSIS AND TESTING . . . 9-157,9-219,9-274,
9-401
INTAKE MANIFOLD LEAKS - DIAGNOSIS
AND TESTING........................9-71
INTAKE SYSTEM - INSTALLATION, AIR....9-194
INTAKE SYSTEM - REMOVAL, AIR.......9-194
INTAKE/EXHAUST VALVES & SEATS -
CLEANING..........................9-248
INTAKE/EXHAUST VALVES & SEATS -
DESCRIPTION....9-122,9-246,9-27,9-305,9-375
INTAKE/EXHAUST VALVES & SEATS -
INSPECTION........................9-248
INTAKE/EXHAUST VALVES & SEATS -
INSTALLATION..............9-123,9-248,9-29
INTAKE/EXHAUST VALVES & SEATS -
REMOVAL.................9-122,9-248,9-28
INTEGRATED POWER MODULE -
DESCRIPTION.....................8W-97-3
INTEGRATED POWER MODULE -
INSTALLATION....................8W-97-4
INTEGRATED POWER MODULE -
OPERATION.......................8W-97-3
INTEGRATED POWER MODULE -
REMOVAL........................8W-97-3
INTERIOR - CAUTION.................23-63
INTERLOCK - ADJUSTMENTS, BRAKE
TRANSMISSION SHIFT . . . 21-195,21-376,21-540
INTERLOCK - DIAGNOSIS AND TESTING,
BRAKE TRANSMISSION SHIFT . . . 21-195,21-375,
21-540
INTERLOCK SYSTEM - DESCRIPTION,
BRAKE TRANSMISSION SHIFT . . . 21-194,21-375,
21-540
INTERLOCK SYSTEM - OPERATION,
BRAKE TRANSMISSION SHIFT . . . 21-194,21-375,
21-540
INTERNATIONAL SYMBOLS -
DESCRIPTION......................Intro.-6
INTERNATIONAL SYMBOLS -
DESCRIPTION.........................0-1
INTRODUCTION - DIAGNOSIS AND
TESTING, ENGINE DIAGNOSIS.....9-178,9-225,
9-353,9-4,9-93
INVERTED FLARING - STANDARD
PROCEDURE, DOUBLE..................5-7
IOD FUSE - DESCRIPTION...........8W-97-6
IOD FUSE - INSTALLATION...........8W-97-7
IOD FUSE - OPERATION.............8W-97-6
IOD FUSE - REMOVAL..............8W-97-6
ISO FLARING - STANDARD PROCEDURE....5-7
ISOLATORS - INSTALLATION, BODY
......23-37
ISOLATORS - REMOVAL, BODY
.........23-36
JOINT - DIAGNOSIS AND TESTING,
LOWER BALL
........................2-18
JOINT - DIAGNOSIS AND TESTING,
UPPER BALL
.........................2-26
JOINT - INSTALLATION, LOWER BALL
. 2-19,2-33
18 INDEXDR
Description Group-Page Description Group-Page Description Group-Page