2006 DODGE RAM SRT-10 Service Repair Manual

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Page 3065 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual TURBINE
The turbine is the output, or driven, member of the converter. The turbine is mounted within the housing opposite
the impeller, but is not attached to the housing. The input shaft is inserted

Page 3066 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual STATOR
The stator assembly is mounted on a stationary shaft
which is an integral part of the oil pump. The stator (1)
islocatedbetweentheimpeller (2) and the turbine (4)
within the torque converter ca

Page 3067 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual TORQUE CONVERTER CLUTCH (TCC)
The TCC was installed to improve the efficiency of the
torque converter that is lost to the slippage of the fluid
coupling. Although the fluid coupling provides smooth,
s

Page 3068 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual TURBINE
As the fluid that was put into motion bythe impeller blades strikes the blades of the turbine, some of the energy and
rotational force is transferred into the turbine and the input shaft. This

Page 3069 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual TORQUE CONVERTER CLUTCH (TCC)
In a standard torque converter, the impeller and tur-
bine are rotating at about the same speed and the
stator is freewheeling, providing no torque multiplica-
tion. By a

TORQUE CONVERTER CLUTCH (TCC)
In a standard torque converter, the impeller and tur-
bine are rotating at about the same speed and the
stator is freewheeling, providing no torque multiplica-
tion. By applying the turbine’s piston and friction mate-
rial to the front cover, a total converter engagement
can be obtained. The result of this engagement is a
direct 1:1 mechanical link between the engine and the
transmission.
The clutch can be engaged in second, third, fourth,
and fifth (if appicable) gear ranges depending on over-
drive control switch position. If the overdrive control
switch is in the normal ON position, the clutch will
engage after the shift to fourth gear. If the control
switch is in the OFF position, the clutch will engage
after the shift to third gear.
The TCM controls the torque converter by way of
internal logic software. The programming of the soft-
ware provides the TCM with control over the L/R-CC
Solenoid. There are four output logic states that can
be applied as follows:
No EMCC
Partial EMCC
Full EMCC
Gradual-to-no EMCC
NO EMCC
Under No EMCC conditions, the L/R Solenoid is OFF. There are several conditions that can result in NO EMCC
operations. No EMCC can be initiated due to a fault in the transmission or because the TCM does not see the need
for EMCC under current driving conditions.
PARTIAL EMCC
Partial EMCC operation modulates the L/R Solenoid (duty cycle) to obtain partial torque converter clutch application.
Partial EMCC operation is maintaineduntil Full EMCC is called for and actuated. During Partial EMCC some slip
does occur. Partial EMCC will usually occur at low speeds, low load and light throttle situations.
FULL EMCC
During Full EMCC operation, the TCM increases the L/R Solenoid duty cycle to full ON after Partial EMCC control
brings the engine speed within the desired slip range of transmission input speed relative to engine rpm.
GRADUAL-TO-NO EMCC
This operation is to soften the change from Full or Partial EMCC to No EMCC. This is done at mid-throttle by
decreasing the L/R Solenoid duty cycle.
REMOVAL
1. Remove transmission and torque converter from vehicle. (Refer to 21 - TRANSMISSION/AUTOMATIC - 45RFE/
545RFE - REMOVAL)
2. Place a suitable drain pan under the converter housing end of the transmission.
CAUTION: Verify that transmission is secure on the lifting device or work surface, the center of gravity of
the transmission will shift when the torque converter is removed creatingan unstable condition. The torque
converter is a heavy unit. Use caution when separating the torque converter from the transmission.
3. Pull the torque converter forward until the center hub clears the oil pumpseal.
Stator Operation
1 - DIRECTION STATOR WILL FREE WHEEL DUE TO OIL
PUSHING ON BACKSIDE OF VANES
2-FRONTOFENGINE
3 - INCREASED ANGLE AS OIL STRIKES VANES
4 - DIRECTION STATOR IS LOCKED UP DUE TO OIL PUSHING
AGAINST STATOR VANES

Page 3070 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 4. Separate the torque converter from the transmission.
INSTALLATION
NOTE: Check converter hub and drive notches for sharp edges, burrs, scratches, or nicks. Polish the hub
and notches with 320/400 gr

Page 3071 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual SWITCH-TOW/HAUL OVERDRIVE
DESCRIPTION
The tow/haul overdrive OFF (control) switch is located
in the shift lever arm. The switch is a momentary con-
tact device that signals the PCM to toggle current s

Page 3072 of 5267

DODGE RAM SRT-10 2006 Service Repair Manual 2. Pull the switch (2) outwards to release it from the
connector in the lever (1)
INSTALLATION
NOTE: There is enough slack in the wire to pull out the connector from the lever.
1. Pull the connector (

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