Page 3049 of 5267

3. Remove the pump gears (2, 3) and check for wear
and damage on pump housing (1) and gears (2, 3).
4. Re-install the gears and check clearances.
5. Measure the clearance between the outer gear (1)
and the pump pocket (2). Clearance should be
0.089-0.202 mm (0.0035-0.0079 in.).
6. Measure clearance between outer gear and cres-
cent. Clearance should be 0.060-0.298 mm
(0.0023-0.0117 in.).
7. Measure clearance between inner gear and cres-
cent. Clearance should be 0.093-0.385 mm
(0.0036-0.0151 in.).
8. Position an appropriate piece of Plastigage across
both pump gears.
9. AlignthePlastigagetoaflatareaonthereaction
shaft support housing.
10. Install the reaction shaft to the pump housing.
Tighten the bolts to 28 Nꞏm (250 in. lbs.).
11. Remove bolts and carefully separate the housings. Measure the Plastigage following the instructions supplied.
12. Clearance between outer gear side and the reaction shaft support should be 0.020-0.046 mm (0.0008-0.0018
in.). Clearance between inner gear side and the reaction shaft support should be 0.020-0.046 mm (0.0008-
0.0018 in.).
Page 3050 of 5267
ASSEMBLY
1. Assemble oil pump as shown
2. Install and torque reaction shaft support-to-oil pump
housing bolts to 28 Nꞏm (250 in. lbs.) torque.
Page 3051 of 5267

SENSOR-OUTPUT SPEED
DESCRIPTION
The Input (1) and Output (2) Speed Sensors are two-
wire magnetic pickup devices that generate AC signals
as rotation occurs. They are mounted in the left side
of the transmission case and are considered primary
inputs to the Transmission Control Module (TCM).
OPERATION
The Input Speed Sensor provides information on how fast the input shaft is rotating. As the teeth of the input clutch
hub pass by the sensor coil, an AC voltage is generated and sent to the TCM. The TCM interprets this information
as input shaft rpm.
The Output Speed Sensor generates an AC signal in a similar fashion, thoughitscoilisexcitedbyrotationofthe
rear planetary carrier lugs. The TCM interprets this information as outputshaftrpm.
The TCM compares the input and output speed signals to determine the following:
Transmission gear ratio
Speed ratio error detection
CVI calculation
The TCM also compares the input speed signal and the engine speed signal to determine the following:
Torque converter clutch slippage
Torque converter element speed ratio
REMOVAL
1. Raise vehicle.
2. Place a suitable fluid catch pan under the transmis-
sion.
3. Remove the wiring connector from the output
speed sensor (2).
NOTE: The speed sensor bolt has a sealing patch
applied from the factory. Be sure to reuse the
same bolt.
4. Remove the bolt holding the output speed sensor
to the transmission case.
5. Remove the output speed sensor (2) from the
transmission case.
Page 3052 of 5267
INSTALLATION
1. Install the output speed sensor (2) into the trans-
mission case.
NOTE: Before installing the speed sensor bolt, it
will be necessary to replenish the sealing patch on
the bolt using MOPAR
Lock & Seal Adhesive.
2. Install the bolt to hold the output speed sensor into
the transmission case. Tighten the bolt to 9 Nꞏm
(80 in.lbs.).
3. Install the wiring connector onto the output speed
sensor
4. Verify the transmission fluid level. Add fluid as nec-
essary.
5. Lower vehicle.
Page 3053 of 5267
GEARTRAIN-PLANETARY
DESCRIPTION
The planetary geartrain is located between the input
clutch assembly and the rear of the transmission case.
The planetary geartrain consists of two sun gears, two
planetary carriers, two annulus (ring) gears, and one
output shaft.
OPERATION
The planetary geartrain utilizes two planetary gear setsthat connect thetransmission input shaft to the output shaft.
Input and holding clutches drive or lock different planetary members to change output ratio or direction.
Page 3054 of 5267

SEAL-OIL PUMP
REMOVAL
1. Remove the transmission from the vehicle (Refer to 21 - TRANSMISSION/AUTOMATIC - 42RLE - REMOVAL).
2. Remove the torque converter from the transmission bellhousing.
3. Use a screw mounted in a slide hammer to remove oil pump seal.
INSTALLATION
1. Clean and inspect oil pump seal seat. Then install seal using Seal Installer C-4193-A.
2. Clean and inspect torque converter hub. If nicks, scratches or hub wear are found, torque converter replacement
will be required.
CAUTION: If the torque converter isbeing replaced, apply a light coating of grease to the crankshaft pilot
hole. Also inspect the engine drive plate for cracks. If any cracks are found replace the drive plate. Do not
attempt to repair a cracked drive plate. Always use new torque converter todrive plate bolts.
3. Apply a light film of transmission oil to the torque converter hub and oilseal lips. Then install torque converter
into transmission. Be sure that the hub lugs mesh with the front pump lugs when installing.
4. Reinstall the transmission into the vehicle. (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 42RLE -
INSTALLATION)
Page 3055 of 5267

SOLENOID-PRESSURE CONTROL
DESCRIPTION
Thepressurecontrolsolenoid(1)ismountedonthe
top of the valve body, next to the line pressure sensor
(2).
The TCM utilizes a closed-loop system to control
transmission line pressure. The system contains a
variable force style solenoid, the Pressure Control
Solenoid. The solenoid is duty cycle controlled by the
TCM to vent the unnecessary line pressure supplied
by the oil pump back to the sump. The system also
contains a variable pressure style sensor, the Line
Pressure Sensor, which is a direct input to the TCM.
The line pressure solenoid monitors the transmission
line pressure and completes the feedback loop to the
TCM. The TCM uses this information to adjust its con-
trol of the pressure control solenoid to achieve the
desired line pressure.
OPERATION
The pressure control solenoid (PCS) is a variable force (VFS) style solenoid. A VFS solenoid is an electro-hydraulic
actuator, combining a solenoid and a regulating valve.
The transmission control module varies the current for the PCS, which variesthepressureinthelinepressure
hydraulic circuit. When the current (duty cycle) of the PCS is low, the pressure in the circuit is higher. At 0 current
(0% duty cycle), the pressure is at the maximum value. Conversely, when thecurrent is maximized (100% duty
cycle), the pressure in the circuit is at the lowest possible value.
REMOVAL
1. Remove the valve body from the transmission.
(Refer to 21 - TRANSMISSION/TRANSAXLE/AU-
TOMATIC - 42RLE/VALVE BODY - REMOVAL)
2. Remove the electrical connectors from the pres-
sure control solenoid (1) and the line pressure sen-
sor (2).
3. Remove the screws (6) holding the pressure con-
trol solenoid (1) and line pressure sensor (2) to the
valve body.
4. Remove the pressure control solenoid and line
pressure sensor from the valve body.
Page 3056 of 5267
INSTALLATION
1. Install the pressure control solenoid (1) and line
pressure sensor (2) into the valve body.
2. Install the screws (6) to hold the pressure control
solenoid (1) and line pressure sensor (2) to the
valve body.
3. Install the electrical connectors to the pressure
control solenoid (1) and the line pressure sensor
(2).
4. Install the valve body into the transmission. (Refer
to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC
- 42RLE/VALVE BODY - INSTALLATION)