Grand Caravan V6-3.3L VIN R (2005)
CONVERTER CLUTCH SWITCH VALVE
The main responsibility of the converter clutch switch valve is to control hydraulic pressure applied to the front (off) side of the converter clutch
piston. Line pressure from the regulator valve is fed to the torque converter regulator valve, where it passes through the valve, and is slightly
regulated. The pressure is then directed to the converter clutch switch valve and to the front side of the converter clutch piston. This pressure pushes
the piston back and disengages the converter clutch.
CONVERTER CLUTCH CONTROL VALVE
The converter clutch control valve controls the back (on) side of the torque converter clutch. When the PCM/TCM energizes or modulates the LR/CC
solenoid to apply the converter clutch piston, both the converter clutch control valve and the converter control valve move, allowing pressure to be
applied to the back side of the clutch.
T/C REGULATOR VALVE
The torque converter regulator valve slightly regulates the flow of fluid to the torque converter.
LOW/REVERSE SWITCH VALVE
The low/reverse clutch is applied from different sources, depending on whether low (1st) gear or reverse is selected. The low/reverse switch valve
alternates positions depending on from which direction fluid pressure is applied. By design, when the valve is shifted by fluid pressure from one
channel, the opposing channel is blocked. The switch valve alienates the possibility of a sticking ball check, thus providing consistent application of
the low/reverse clutch under all operating conditions.
