Dakota Quad Cab 2WD V8-4.7L VIN N (2001)
The stator assembly (Fig. 109) is mounted on a stationary shaft which is an integral part of the oil pump. The stator is located between the impeller
and turbine within the torque converter case (Fig. 110). The stator contains an over-running clutch, which allows the stator to rotate only in a
clockwise direction. When the stator is locked against the over-running clutch, the torque multiplication feature of the torque converter is operational.
TORQUE CONVERTER CLUTCH (TCC)
The TCC (Fig. 111) 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, shock-free power transfer, it is natural for all fluid couplings to slip. If the impeller and turbine were mechanically locked
together, a zero slippage condition could be obtained. A hydraulic piston with friction material was added to the turbine assembly to provide this
mechanical lock-up. In order to reduce heat build-up in the transmission and buffer the powertrain against torsional vibrations, the TCM can duty
cycle the L/R-CC Solenoid to achieve a smooth application of the torque converter clutch. This function, referred to as Electronically Modulated
Converter Clutch (EMCC) can occur at various times depending on the following variables:
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Shift lever position
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Current gear range
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Transmission fluid temperature
