2006 DODGE RAM SRT-10 transmission fluid

INSTALLATION
1. Install the input speed sensor (3) into the transmis-
sion case.
2. Install the bolt to hold the input speed sensor (3)
into the transmission case. Tighten the bolt to 12
Nꞏm (105 in.lbs.).
3. Install the wiring connector onto the input speed
sensor.
4. Verify the transmission fluid level. Add fluid as nec-
essary.
5. Lower vehicle.

SENSOR-LINE PRESSURE
DESCRIPTION
The TCM utilizes a closed-loop system to control transmission line pressure. The system contains a variable force
style solenoid, the Pressure Control Solenoid, mounted on the side of the solenoid and pressure switch assembly.
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 feed-
back loop to the TCM. The TCM uses this information to adjust its control of the pressure control solenoid to
achieve the desired line pressure.
OPERATION
The TCM calculates the desired line pressure based upon inputs from the transmission and engine. The TCM cal-
culates the torque input to the transmission and uses that information as the primary input to the calculation. The
line pressure is set to a predetermined value during shifts and when the transmission is in the PARK and NEUTRAL
positions. This is done to ensure consistent shift quality. During all other operation, the actual line pressure is com-
pared to the desired line pressure and adjustments are made to the pressurecontrol solenoid duty cycle.
REMOVAL
1. Raise vehicle.
2. Place a suitable fluid catch pan under the transmis-
sion.
3. Remove the wiring connector from the line pres-
sure sensor (2).
4. Remove the bolt holding the line pressure sensor
(2) to the transmission case.
5. Remove the line pressure sensor (2) from the
transmission case.

INSTALLATION
1. Install the line pressure sensor (2) into the trans-
mission case.
2. Install the bolt to hold the line pressure sensor (2)
into the transmission case. Tighten the bolt to 12
Nꞏm (105 in.lbs.).
3. Install the wiring connector onto the line pressure
sensor (2).
4. Verify the transmission fluid level. Add fluid as nec-
essary.
5. Lower vehicle.

ASSEMBLY
1. Check the bleed orifice to ensure that it is not
plugged or restricted.
2. Install a new seal on the low/reverse piston. Lubri-
cate the seal with Mopar
ATF +4, Automatic
Transmission Fluid, prior to installation.
3. Install the low/reverse piston into the low/reverse
clutch retainer.
4. Position the low/reverse Belleville spring (3) on the
low/reverse piston.
5. Using Spring Compressor 8285 (2) and a suitable
shop press (1), compress the low/reverse Belleville
spring (3) and install the split retaining ring to hold
the Belleville spring into the low/reverse clutch
retainer.
6. Install the lower overrunning clutch snap-ring.
7. Assemble the inner and outer races (2) of the over-
running clutch (3).
8. Position the overrunning clutch spacer (4) on the
overrunning clutch (3).
9. Install the upper overrunning clutch snap-ring (1).

OPERATION
As the torque converter rotates, the converter hub rotates the oil pump drive gear. As the drive gear rotates both
driven gears, a vacuum is created when the gear teeth come out of mesh. This suction draws fluid through the
pump inlet from the oil pan. As the gear teeth come back into mesh, pressurized fluid is forced into the pump outlet
and to the oil pump valves.
At low speeds, both sides of the pump supply fluid to the transmission. As the speed of the torque converter
increases, the flow from both sides increases until the flow from the primary side alone is sufficient to meet system
demands. At this point, the check valve located between the two pumps closes. The secondary side is shut down
and the primary side supplies all the fluid to the transmission.
CONVERTER CLUTCH SWITCH VALVE
The converter clutch switch valve is used to control the hydraulic pressure supplied to the front (OFF) side of the
torque converter clutch.
CONVERTER CLUTCH REGULATOR VALVE
The converter clutch regulator valve is used to control the hydraulic pressure supplied to the back (ON) side of the
torque converter clutch.
TORQUE CONVERTER LIMIT VALVE
The torque converter limit valve serves to limit the available line pressure to the torque converter clutch.
STANDARD PROCEDURE - OIL PUMP VOLUME CHECK
Measuring the oil pump output volume will determine if sufficient oil flowto the transmission oil cooler exists, and
whether or not an internal transmission failure is present.
Verify that the transmission fluid is at the proper level. Refer to the Fluid Level Check procedure in this section. If
necessary, fill the transmission to the proper level with Mopar
ATF +4, Automatic Transmission Fluid.
1. Disconnect theTo coolerline at the cooler inlet and place a collecting container under the disconnected line.
CAUTION: With the fluid set at the proper level, fluid collection should not exceed (1) quart or internal dam-
age to the transmission may occur.
2. Run the engineat 1800 rpm, with the shift selector in neutral. Verify that the transmission fluid temperature is
below 104.5° C (220° F) for this test.
3. If one quart of transmission fluid is collected in the container in 30 seconds or less, oil pump flow volume is
within acceptable limits. If fluid flow is intermittent, or it takes more than 30 seconds to collect one quart of fluid,
refer to the Hydraulic Pressure tests in this section for further diagnosis.
4. Re-connect theTo c o o l e rline to the transmission cooler inlet.
5. Refill the transmission to proper level.

SENSOR-OUTPUT SPEED
DESCRIPTION
The Input and Output 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 Trans-
mission 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 (1).
4. Remove the bolt holding the output speed sensor
(1) to the transmission case.
5. Remove the output speed sensor (1) from the
transmission case.

INSTALLATION
1. Install the output speed sensor (1) into the trans-
mission case.
2. Install the bolt to hold the output speed sensor (1)
into the transmission case. Tighten the bolt to 12
Nꞏm (105 in.lbs.).
3. Install the wiring connector onto the output speed
sensor (1).
4. Verify the transmission fluid level. Add fluid as nec-
essary.
5. Lower vehicle.

MECHANISM-SHIFT
DESCRIPTION
The gear shift mechanism provides six shift positions which are:
Park (P)
Reverse (R)
Neutral (N)
Drive (D)
Manual second (2)
Manual low (1)
OPERATION
MANUAL LOW (1) range provides first gear only. Overrun braking is also provided in this range. MANUAL SECOND
(2) range provides first and second gear only.
DRIVE range provides FIRST, SECOND, THIRD, OVERDRIVE FOURTH, and OVERDRIVE FIFTH (if applicable)
gear ranges. The shift into OVERDRIVE FOURTH and FIFTH (if applicable) gear ranges occurs only after the trans-
mission has completed the shift into D THIRD gear range. No further movement of the shift mechanism is required
to complete the 3-4 or 4-5 (if applicable) shifts.
The FOURTH and FIFTH (if applicable) gear upshifts occur automatically when the overdrive selector switch is in
the ON position. No upshift to FOURTH or FIFTH (if applicable) gears will occur if any of the following are true:
The transmission fluid temperature is below 10° C (50° F) or above 121° C (250° F).
The shift to THIRD is not yet complete.
Vehicle speed is too low for the 3-4 or 4-5 (if applicable) shifts to occur.
Upshifts into FOURTH or FIFTH (if applicable) will be delayed when the transmission fluid temperature is below 4.5°
C(40°F)orabove115.5°C(240°F).