2002 DODGE RAM service schedule

The valve is serviced as an assembly; it is not
repairable. Do not clean the valve if restricted, or
contaminated by sludge, or debris. If the valve fails,
or if a transmission malfunction occurs that gener-
ates significant amounts of sludge and/or clutch par-
ticles and metal shavings, the valve must be
replaced.
The valve must be removed whenever the cooler
and lines are reverse flushed. The valve can be flow
tested when necessary. The procedure is exactly the
same as for flow testing a cooler.
If the valve is restricted, installed backwards, or in
the wrong line, it will cause an overheating condition
and possible transmission failure.
CAUTION: The drainback valve is a one-way flow
device. It must be properly oriented in terms of flow
direction for the cooler to function properly. The
valve must be installed in the pressure line. Other-
wise flow will be blocked and would cause an over-
heating condition and eventual transmission failure.
TRANSMISSION
TEMPERATURE SENSOR
DESCRIPTION
Transmission fluid temperature readings are sup-
plied to the transmission control module by the ther-
mistor (Fig. 246). The temperature readings are used
to control engagement of the fourth gear overdrive
clutch, the converter clutch, and governor pressure.
Normal resistance value for the thermistor at room
temperature is approximately 2000 ohms.
The thermistor is part of the governor pressure
sensor assembly and is immersed in transmission
fluid at all times.
OPERATION
The PCM prevents engagement of the converter
clutch and overdrive clutch, when fluid temperature
is below approximately 10ÉC (50ÉF).
If fluid temperature exceeds 126ÉC (260ÉF), the
PCM causes a 4-3 downshift and engage the con-
verter clutch. Engagement is according to the third
gear converter clutch engagement schedule.
The overdrive OFF lamp in the instrument panel
illuminates when the shift back to third occurs. The
transmission will not allow fourth gear operation
until fluid temperature decreases to approximately
110ÉC (230ÉF).
VALVE BODY
DESCRIPTION
The valve body consists of a cast aluminum valve
body, a separator plate, and transfer plate. The valve
body contains valves and check balls that control
fluid delivery to the torque converter clutch, bands,
and frictional clutches. The valve body contains the
following components (Fig. 247), (Fig. 248), (Fig.
249), and (Fig. 250):
²Regulator valve
²Regulator valve throttle pressure plug
²Line pressure plug and sleeve
²Kickdown valve
²Kickdown limit valve
²1-2 shift valve
²1-2 control valve
²2-3 shift valve
²2-3 governor plug
²3-4 shift valve
²3-4 timing valve
²3-4 quick fill valve
²3-4 accumulator
²Throttle valve
²Throttle pressure plug
²Switch valve
²Manual valve
²Converter clutch lock-up valve
²Converter clutch lock-up timing Valve
²Shuttle valve
²Shuttle valve throttle plug
²Boost Valve
²10 check balls
By adjusting the spring pressure acting on the reg-
ulator valve, transmission line pressure can be
adjusted.
Fig. 246 Governor Pressure Sensor
1 - GOVERNOR BODY
2 - GOVERNOR PRESSURE SENSOR/TRANSMISSION FLUID
TEMPERATURE THERMISTOR
21 - 218 AUTOMATIC TRANSMISSION - 46REBR/BE
TORQUE CONVERTER DRAINBACK VALVE (Continued)

METHOD 1 (RELOCATE WHEEL ON HUB)
(1) Drive vehicle a short distance to eliminate tire
flat spotting from a parked position.
(2) Check wheel bearings and adjust if adjustable
or replace if necessary.
(3) Check the wheel mounting surface.
(4) Relocate wheel on the mounting, two studs
over from the original position.
(5) Tighten wheel nuts until all are properly
torqued, to eliminate brake distortion.
(6) Check radial runout. If still excessive, mark
tire sidewall, wheel, and stud at point of maximum
runout and proceed to Method 2.
METHOD 2 (RELOCATE TIRE ON WHEEL)
NOTE: Rotating the tire on wheel is particularly
effective when there is runout in both tire and
wheel.
(1) Remove tire from wheel and mount wheel on
service dynamic balance machine.
(2) Check wheel radial runout (Fig. 2) and lateral
runout (Fig. 3).
²STEEL WHEELS: Radial runout 0.040 in., Lat-
eral runout 0.045 in. (maximum)
²ALUMINUM WHEELS: Radial runout 0.030 in.,
Lateral runout 0.035 in. (maximum)
(3)
If point of greatest wheel lateral runout is near
original chalk mark, remount tire 180 degrees. Recheck
runout, Refer to match mounting procedure.
STANDARD PROCEDURE
STANDARD PROCEDURE - TIRE ROTATION
Tires on the front and rear axles operate at differ-
ent loads and perform different steering, driving, and
braking functions. For these reasons, the tires wear
at unequal rates. They may also develop irregular
wear patterns. These effects can be reduced by rotat-
ing the tires according to the maintenance schedule
in the Owners Manual. This will improve tread life,
traction and maintain a smooth quiet ride.
The recommended method of tire rotation is (Fig.
4). Other methods can be used, but may not provide
the same tire longevity benefits.
Dual wheel vehicles require a different tire rota-
tion pattern. Refer to (Fig. 5) for the proper tire rota-
tion with dual wheels.
Fig. 2 Radial Runout
1 - MOUNTING CONE
2 - SPINDLE SHAFT
3 - WING NUT
4 - PLASTIC CUP
5 - DIAL INDICATOR
6 - WHEEL
7 - DIAL INDICATOR
Fig. 3 Lateral Runout
1 - MOUNTING CONE
2 - SPINDLE SHAFT
3 - WING NUT
4 - PLASTIC CUP
5 - DIAL INDICATOR
6 - WHEEL
7 - DIAL INDICATOR
Fig. 4 Tire Rotation Pattern
22 - 2 TIRES/WHEELSBR/BE
TIRES/WHEELS (Continued)

REMOTE KEYLESS ENTRY SYSTEM -
DESCRIPTION........................8N-2
REMOTE KEYLESS ENTRY SYSTEM -
DIAGNOSIS AND TESTING, POWER
LOCK...............................8N-5
REMOTE KEYLESS ENTRY SYSTEM -
OPERATION..........................8N-4
REMOTE KEYLESS ENTRY
TRANSMITTER - DESCRIPTION..........8N-7
REMOTE KEYLESS ENTRY
TRANSMITTER - DIAGNOSIS AND
TESTING............................8N-8
REMOTE KEYLESS ENTRY
TRANSMITTER - OPERATION............8N-8
REMOTE KEYLESS ENTRY
TRANSMITTER BATTERIES -
STANDARD PROCEDURE...............8N-8
REMOTE SWITCHES - DESCRIPTION.....8A-14
REMOTE SWITCHES - DIAGNOSIS AND
TESTING...........................8A-15
REMOTE SWITCHES - INSTALLATION.....8A-16
REMOTE SWITCHES - OPERATION.......8A-15
REMOTE SWITCHES - REMOVAL........8A-16
REPAIR - STANDARD PROCEDURE,
ALUMINUM THREAD...........21-114,21-286
REPAIR - STANDARD PROCEDURE, CAM
BORE..............................9-151
REPAIR - STANDARD PROCEDURE,
CYLINDER BORE.....................9-149
REPAIR DAMAGED OR WORN THREADS
- STANDARD PROCEDURE.....9-11,9-122,9-66
REPAIRING LEAKS - STANDARD
PROCEDURE.........................22-9
REQUIREMENTS - DESCRIPTION,
COOLING SYSTEM....................24-1
REQUIREMENTS - DIESEL ENGINE -
DESCRIPTION, FUEL....................0-3
REQUIREMENTS - GAS ENGINES -
DESCRIPTION, FUEL....................0-2
RESERVOIR - DESCRIPTION, VACUUM . . . 8P-14
RESERVOIR - DESCRIPTION, WASHER . . . 8R-10
RESERVOIR - INSTALLATION, FLUID......5-15
RESERVOIR - INSTALLATION, VACUUM . . . 8P-15
RESERVOIR - INSTALLATION, WASHER . . . 8R-11
RESERVOIR - OPERATION, WASHER.....8R-10
RESERVOIR - REMOVAL, FLUID..........5-15
RESERVOIR - REMOVAL, VACUUM.......8P-14
RESERVOIR - REMOVAL, WASHER......8R-10
RESISTANCE, 5.9L ENGINES - IGNITION
COIL................................8I-3
RESISTANCE, 8.0L V-10 ENGINE -
IGNITION COIL........................8I-4
RESISTANCE, SPECIFICATIONS - SPARK
PLUG CABLE.........................8I-3
RESISTOR BLOCK - DESCRIPTION,
BLOWER MOTOR....................24-23
RESISTOR BLOCK - DIAGNOSIS AND
TESTING, BLOWER MOTOR............24-23
RESISTOR BLOCK - INSTALLATION,
BLOWER MOTOR....................24-24
RESISTOR BLOCK - OPERATION,
BLOWER MOTOR....................24-23
RESISTOR BLOCK - REMOVAL, BLOWER
MOTOR............................24-24
RESONATOR - INSTALLATION...........11-13
RESONATOR - REMOVAL..............11-13
RESTRAINTS - DESCRIPTION............8O-1
RESTRAINTS - OPERATION.............8O-2
RESTRAINTS - WARNING...............8O-3
RESTRICTIONS - DIAGNOSIS AND
TESTING, FUEL SUPPLY...............14-60
RETAINER - ASSEMBLY, OVERRUNNING
CLUTCH CAM/OVERDRIVE PISTON.....21-193,
21-364
RETAINER - CLEANING, OVERRUNNING
CLUTCH CAM/OVERDRIVE PISTON
.....21-192,
21-364
RETAINER - DESCRIPTION,
OVERRUNNING CLUTCH CAM/
OVERDRIVE PISTON
...........21-192,21-363
RETAINER - DISASSEMBLY,
OVERRUNNING CLUTCH CAM/
OVERDRIVE PISTON
...........21-192,21-364
RETAINER - INSPECTION,
OVERRUNNING CLUTCH CAM/
OVERDRIVE PISTON
...........21-193,21-364
RETAINER - INSTALLATION,
CRANKSHAFT REAR OIL SEAL
......9-163,9-90RETAINER - OPERATION, OVERRUNNING
CLUTCH CAM/OVERDRIVE PISTON.....21-192,
21-363
RETAINER - REMOVAL, CRANKSHAFT
REAR OIL SEAL..................9-162,9-90
RETRACTOR - INSTALLATION, REAR
SEAT BELT .........................8O-26
RETRACTOR - REMOVAL, REAR SEAT
BELT ..............................8O-26
RETURN - DESCRIPTION, HOSES........19-39
RETURN - DESCRIPTION, SENSOR.......8E-17
RETURN - OPERATION, HOSES..........19-39
REVOLUTIONS PER MILE,
SPECIFICATIONS - TIRE................22-9
RIGHT FRONT FENDER - INSTALLATION . . 23-94
RIGHT FRONT FENDER - REMOVAL......23-94
RING - INSTALLATION, PINION
GEAR/RING GEAR/TONE......3-104,3-132,3-75
RING - REMOVAL, PINION GEAR/RING
GEAR/TONE................3-103,3-131,3-73
RING FITTING - STANDARD
PROCEDURE, PISTON.............9-171,9-39
RINGS - STANDARD PROCEDURE,
FITTING PISTON......................9-95
RISER - INSTALLATION, SEAT..........23-141
RISER - REMOVAL, SEAT.............23-141
RKE TRANSMITTER PROGRAMMING -
STANDARD PROCEDURE...............8N-8
ROAD TEST - DIAGNOSIS AND TESTING . . . 8P-4
ROAD TESTING - DIAGNOSIS AND
TESTING.....................21-269,21-97
ROCKER ARM / ADJUSTER ASSEMBLY -
INSTALLATION........................9-26
ROCKER ARM / ADJUSTER ASSEMBLY -
REMOVAL...........................9-26
ROCKER ARM / ADJUSTER ASSY -
CLEANING..........................9-146
ROCKER ARM / ADJUSTER ASSY -
DESCRIPTION.......................9-145
ROCKER ARM / ADJUSTER ASSY -
INSPECTION........................9-146
ROCKER ARM / ADJUSTER ASSY -
INSTALLATION...................9-148,9-84
ROCKER ARM / ADJUSTER ASSY -
REMOVAL......................9-145,9-84
ROD - CLEANING, PISTON &
CONNECTING...............9-169,9-39,9-94
ROD - DESCRIPTION, PISTON &
CONNECTING...............9-165,9-38,9-93
ROD - INSPECTION, PISTON &
CONNECTING.....................9-39,9-94
ROD - INSTALLATION, PISTON &
CONNECTING.....................9-39,9-94
ROD - REMOVAL, PISTON &
CONNECTING...............9-168,9-38,9-94
ROD BEARING AND CRANKSHAFT
JOURNAL CLEARANCE - STANDARD
PROCEDURE, CONNECTING............9-158
ROD BEARING FITTING - STANDARD
PROCEDURE, CONNECTING.........9-29,9-87
RODS, INSPECTION - CONNECTING......9-169
ROOF JOINT MOLDING - INSTALLATION . . 23-91
ROOF JOINT MOLDING - REMOVAL......23-91
ROTATION - STANDARD PROCEDURE,
TIRE
................................22-2
ROTOR - DIAGNOSIS AND TESTING,
DISTRIBUTOR
.......................8I-14
ROTOR, DIAGNOSIS AND TESTING -
DISC BRAKE
.........................5-20
RUN CHANNEL - INSTALLATION, GLASS
. . 23-71
RUN CHANNEL - REMOVAL, GLASS
......23-71
RUN WEATHERSTRIP - INSTALLATION,
FRONT DOOR GLASS
................23-153
RUN WEATHERSTRIP - REMOVAL,
FRONT DOOR GLASS
................23-152
RUNNING LAMP MODULE -
DESCRIPTION, DAYTIME
................8L-9
RUNNING LAMP MODULE -
INSTALLATION, DAYTIME
...............8L-9
RUNNING LAMP MODULE - OPERATION,
DAYTIME
............................8L-9
RUNNING LAMP MODULE - REMOVAL,
DAYTIME
............................8L-9
RUNOUT - DIAGNOSIS AND TESTING,
TIRE AND WHEEL
.....................22-1
RWAL SERVICE PRECAUTIONS -
STANDARD PROCEDURE
................5-36SAFETY CERTIFICATION LABEL -
DESCRIPTION, VEHICLE..............Intro.-1
SAFETY LATCH - INSTALLATION........23-104
SAFETY LATCH - REMOVAL...........23-104
SAFETY PRECAUTIONS AND WARNINGS,
WARNING...........................23-1
SANDING/BUFFING & POLISHING -
DESCRIPTION, WET.................23-130
SCHEDULES - DESCRIPTION,
MAINTENANCE........................0-7
SCHEMATICS AND DIAGRAMS -
HYDRAULIC SCHEMATICS.......21-132,21-302
SCHEMATICS, SCHEMATICS AND
DIAGRAMS - HYDRAULIC.......21-132,21-302
SEAL - DIAGNOSIS AND TESTING,
RADIATOR CAP-TO-FILLER NECK.........7-65
SEAL - FRONT - DESCRIPTION,
CRANKSHAFT OIL.....................9-32
SEAL - FRONT - INSTALLATION,
CRANKSHAFT OIL................9-160,9-32
SEAL - FRONT - OPERATION,
CRANKSHAFT OIL.....................9-32
SEAL - FRONT - REMOVAL,
CRANKSHAFT OIL................9-160,9-32
SEAL - FRONT COVER INSTALLED -
INSTALLATION, FRONT OIL..............9-89
SEAL - FRONT COVER INSTALLED -
REMOVAL, FRONT OIL.................9-89
SEAL - FRONT COVER REMOVED -
INSTALLATION, FRONT OIL..............9-90
SEAL - FRONT COVER REMOVED -
REMOVAL, FRONT OIL.................9-89
SEAL - INSTALLATION, B-PILLAR DOOR . . . 23-151
SEAL - INSTALLATION, DOOR OPENING . . 23-152
SEAL - INSTALLATION, EXTENSION
HOUSING....................21-156,21-327
SEAL - INSTALLATION, EXTENSION
HOUSING BUSHING............21-460,21-497
SEAL - INSTALLATION, FRONT DOOR
UPPER CORNER....................23-154
SEAL - INSTALLATION, FRONT OUTPUT
SHAFT......................21-461,21-498
SEAL - INSTALLATION, PINION . 3-124,3-35,3-63,
3-95
SEAL - INSTALLATION, PITMAN SHAFT . . . 19-26
SEAL - INSTALLATION, VALVE STEM......9-83
SEAL - NV4500 - INSTALLATION,
ADAPTER HOUSING..................21-42
SEAL - NV4500 - INSTALLATION,
EXTENSION HOUSING.................21-42
SEAL - NV4500 - REMOVAL, ADAPTER
HOUSING...........................21-42
SEAL - NV4500 - REMOVAL, EXTENSION
HOUSING...........................21-42
SEAL - NV5600 - INSTALLATION,
ADAPTER HOUSING..................21-85
SEAL - NV5600 - INSTALLATION,
EXTENSION HOUSING.................21-85
SEAL - NV5600 - REMOVAL, ADAPTER
HOUSING...........................21-85
SEAL - NV5600 - REMOVAL, EXTENSION
HOUSING...........................21-85
SEAL - REAR - DESCRIPTION,
CRANKSHAFT OIL.....................9-33
SEAL - REAR - INSTALLATION,
CRANKSHAFT OIL............9-162,9-34,9-90
SEAL - REAR - OPERATION,
CRANKSHAFT OIL.....................9-33
SEAL - REAR - REMOVAL, CRANKSHAFT
OIL .......................9-161,9-33,9-90
SEAL - REMOVAL, B-PILLAR DOOR.....23-151
SEAL - REMOVAL, DOOR OPENING.....23-152
SEAL - REMOVAL, EXTENSION
HOUSING....................21-156,21-326
SEAL - REMOVAL, EXTENSION HOUSING
BUSHING....................21-460,21-497
SEAL - REMOVAL, FRONT DOOR UPPER
CORNER..........................23-153
SEAL - REMOVAL, FRONT OUTPUT
SHAFT......................21-461,21-498
SEAL - REMOVAL, PINION
. 3-123,3-35,3-63,3-94
SEAL - REMOVAL, PITMAN SHAFT
.......19-25
SEAL RETAINER - INSTALLATION,
CRANKSHAFT REAR OIL
...........9-163,9-90
SEAL RETAINER - REMOVAL,
CRANKSHAFT REAR OIL
...........9-162,9-90
SEALER LOCATIONS, SPECIFICATIONS -
BODY
..............................23-47
26 INDEXBR/BE
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