2003 DODGE RAM Service Repair Manual

suspension reset sun roof infotainment catalytic converter AUX USB

Page 1969 of 2895

DODGE RAM 2003 Service Repair Manual CLEANING...........................214
INSPECTION.........................214
ASSEMBLY...........................215
OUTPUT SHAFT FRONT BEARING
REMOVAL............................217
INSTALLATION.....

CLEANING...........................214
INSPECTION.........................214
ASSEMBLY...........................215
OUTPUT SHAFT FRONT BEARING
REMOVAL............................217
INSTALLATION........................217
OUTPUT SHAFT REAR BEARING
REMOVAL............................217
INSTALLATION........................217
OVERDRIVE CLUTCH
DESCRIPTION........................218
OPERATION..........................218
OVERDRIVE SWITCH
DESCRIPTION........................218
OPERATION..........................218
DIAGNOSIS AND TESTING - OVERDRIVE
ELECTRICAL CONTROLS..............219
REMOVAL............................219
INSTALLATION........................219
OVERDRIVE UNIT
REMOVAL............................220
DISASSEMBLY........................220
CLEANING...........................227
INSPECTION.........................227
ASSEMBLY...........................228
INSTALLATION........................236
OVERRUNNING CLUTCH CAM/OVERDRIVE
PISTON RETAINER
DESCRIPTION........................237
OPERATION..........................237
DISASSEMBLY........................238
CLEANING...........................238
INSPECTION.........................238
ASSEMBLY...........................239
PISTONS
DESCRIPTION........................241
OPERATION..........................241
PLANETARY GEARTRAIN/OUTPUT SHAFT
DESCRIPTION........................242
OPERATION..........................243
DISASSEMBLY........................243
INSPECTION.........................245
ASSEMBLY...........................245
REAR CLUTCH
DESCRIPTION........................248
OPERATION..........................249
DISASSEMBLY........................249
CLEANING...........................250
INSPECTION.........................250
ASSEMBLY...........................250REAR SERVO
DESCRIPTION........................252
OPERATION..........................252
DISASSEMBLY........................252
CLEANING...........................252
ASSEMBLY...........................253
SHIFT MECHANISM
DESCRIPTION........................253
OPERATION..........................253
SOLENOID
DESCRIPTION........................253
OPERATION..........................254
SPEED SENSOR
DESCRIPTION........................254
OPERATION..........................254
THROTTLE VALVE CABLE
DESCRIPTION........................254
ADJUSTMENTS - THROTTLE VALVE
CABLE.............................255
TORQUE CONVERTER
DESCRIPTION........................257
OPERATION..........................261
REMOVAL............................262
INSTALLATION........................262
TORQUE CONVERTER DRAINBACK VALVE
DESCRIPTION........................262
OPERATION..........................262
STANDARD PROCEDURE - TORQUE
CONVERTER DRAINBACK VALVE........262
TRANSMISSION RANGE SENSOR
DESCRIPTION........................263
OPERATION..........................263
DIAGNOSIS AND TESTING - TRANSMISSION
RANGE SENSOR (TRS)................264
REMOVAL............................265
INSTALLATION........................266
TRANSMISSION TEMPERATURE SENSOR
DESCRIPTION........................267
OPERATION..........................267
VALVE BODY
DESCRIPTION........................267
OPERATION..........................272
REMOVAL............................286
DISASSEMBLY........................287
CLEANING...........................298
INSPECTION.........................298
ASSEMBLY...........................299
INSTALLATION........................307
ADJUSTMENTS - VALVE BODY...........308
21 - 130 AUTOMATIC TRANSMISSION - 46REDR

Page 1970 of 2895

DODGE RAM 2003 Service Repair Manual AUTOMATIC TRANSMISSION -
46RE
DESCRIPTION
The 46RE (Fig. 1) is a four speed fully automatic
transmissions with an electronic governor. The 46RE
is equipped with a lock-up clutch in the torque con-
ver

Page 1971 of 2895

DODGE RAM 2003 Service Repair Manual Fig. 1 46RE Transmission
21 - 132 AUTOMATIC TRANSMISSION - 46REDR
AUTOMATIC TRANSMISSION - 46RE (Continued)

Page 1972 of 2895

DODGE RAM 2003 Service Repair Manual IDENTIFICATION
Transmission identification numbers are stamped
on the left side of the case just above the oil pan gas-
ket surface (Fig. 2). Refer to this information when
ordering replacement parts.

IDENTIFICATION
Transmission identification numbers are stamped
on the left side of the case just above the oil pan gas-
ket surface (Fig. 2). Refer to this information when
ordering replacement parts.
GEAR RATIOS
The 46RE gear ratios are:
1st.................................2.45:1
2nd................................1.45:1
3rd................................1.00:1
4th.................................0.69:1
Rev..................................2.21
OPERATION
The application of each driving or holding compo-
nent is controlled by the valve body based upon the
manual lever position, throttle pressure, and gover-
nor pressure. The governor pressure is a variable
pressure input to the valve body and is one of the
signals that a shift is necessary. First through fourth
gear are obtained by selectively applying and releas-
ing the different clutches and bands. Engine power is
thereby routed to the various planetary gear assem-
blies which combine with the overrunning clutch
assemblies to generate the different gear ratios. The
torque converter clutch is hydraulically applied and
is released when fluid is vented from the hydraulic
circuit by the torque converter control (TCC) solenoid
on the valve body. The torque converter clutch is con-
trolled by the Powertrain Control Module (PCM). The
torque converter clutch engages in fourth gear, and
in third gear under various conditions, such as when
the O/D switch is OFF, when the vehicle is cruising
on a level surface after the vehicle has warmed up.
The torque converter clutch can also be engaged in
the manual second gear position if high transmission
temperatures are sensed by the PCM. The torque
converter clutch will disengage momentarily when an
increase in engine load is sensed by the PCM, such
as when the vehicle begins to go uphill or the throttle
pressure is increased. The torque converter clutch
feature increases fuel economy and reduces the
transmission fluid temperature.
Since the overdrive clutch is applied in fourth gear
only and the direct clutch is applied in all ranges
except fourth gear, the transmission operation for
park, neutral, and first through third gear will be
described first. Once these powerflows are described,
the third to fourth shift sequence will be described.
1 - TORQUE CONVERTER 11 - DIRECT CLUTCH
2 - INPUT SHAFT 12 - PLANETARY GEAR
3 - OIL PUMP 13 - OUTPUT SHAFT
4 - FRONT BAND 14 - SEAL
5 - FRONT CLUTCH 15 - INTERMEDIATE SHAFT
6 - REAR CLUTCH 16 - OVERDRIVE OVERRUNNING CLUTCH
7 - PLANETARIES 17 - DIRECT CLUTCH SPRING
8 - REAR BAND 18 - OVERDRIVE PISTON RETAINER
9 - OVERRUNNING CLUTCH 19 - FILTER
10 - OVERDRIVE CLUTCH 20 - VALVE BODY
Fig. 2 Transmission Part And Serial Number
Location
1 - PART NUMBER
2 - BUILD DATE
3 - SERIAL NUMBER
DRAUTOMATIC TRANSMISSION - 46RE 21 - 133
AUTOMATIC TRANSMISSION - 46RE (Continued)

Page 1973 of 2895

DODGE RAM 2003 Service Repair Manual PARK POWERFLOW
As the engine is running and the crankshaft is
rotating, the flexplate and torque converter, which
are also bolted to it, are all rotating in a clockwise
direction as viewed from the fr

Page 1974 of 2895

DODGE RAM 2003 Service Repair Manual REVERSE POWERFLOW
When the gear selector is moved into the
REVERSE position (Fig. 5), the front clutch and the
rear band are applied. With the application of the
front clutch, engine torque is applied

Page 1975 of 2895

DODGE RAM 2003 Service Repair Manual FIRST GEAR POWERFLOW
When the gearshift lever is moved into the DRIVE
position the transmission goes into first gear (Fig. 6).
As soon as the transmission is shifted from PARK or
NEUTRAL to DRIVE, the

Page 1976 of 2895

DODGE RAM 2003 Service Repair Manual SECOND GEAR POWERFLOW
In DRIVE-SECOND (Fig. 7), the same elements
are applied as in MANUAL-SECOND. Therefore, the
power flow will be the same, and both gears will be
discussed as one in the same. In D

Load next 8 pages

Page: < prev 1-10 ... 1937-1944 1945-1952 1953-1960 1961-1968 1969-1976 1977-1984 1985-1992 1993-2000 2001-2008 ... 2896 next >

engine coolant clock lug pattern wheel alignment dashboard warning lights navigation