RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
Torque Converter Clutch: Description and Operation
46RE (A-518) 4 Speed
46RE - Automatic Transmission
TORQUE CONVERTER CLUTCH (TCC)
The TCC (Fig. 256) 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 was added to the turbine, and a friction material was added to the inside of the
front cover to provide this mechanical lock-up.
OPERATION
