New Yorker V6-181 2972cc 3.0L SOHC VIN 3 FI (1989)
valve is shifted to the right in all positions except 2nd, 3rd and 4th gear. When the transaxle upshifts to 2nd gear, the valve moves to the left, which
allows converter clutch engagement when needed. The valve must return to the right before a downshift to 1st gear can occur.
Torque Converter Clutch Control Valve
The Torque Converter Clutch (TCC) control valve controls the back (ON) side of the torque converter clutch. When the TCM energizes the LR/CC
solenoid to engage the converter clutch piston, the TCC control valve and torque converter control valves move to the left. The oil on the front (OFF)
side of the converter clutch piston is vented to the sump.
Line pressure enters the TCC control valve through the manual valve, and then passes through the TCC control valve and the torque converter control
valve to the back (ON) side of the converter clutch piston. Line pressure forces the piston forward, which engages the torque converter clutch. This
action effectively connects the torque converter turbine with the impeller. Line pressure also flows from the regulator valve, through the torque converter
control valve, to the cooler and cooler bypass, for improved fluid and transaxle cooling.
Torque Converter Control Valve
