Torque Converter Clutch Releases

TCC Pressure Control Solenoid 

The torque converter clutch (TCC) pressure control solenoid will default to it's normal state, OFF. PCS TCC fluid will exhaust from the TCC control valve, and spring force will shuttle the valve to the off position. TCC apply fluid will then be routed to the cooler, and TCC release fluid will be routed to the torque converter for complete TCC release.

1-2-3-4 Clutch Regulator Valve 

The 1-2-3-4 clutch regulator valve spring force moves the valve to allow 1-2-3-4 clutch feed fluid to enter the PS1 fluid circuit which opens PS1 switch. The 1-2-3-4 clutch fluid passes through orifice #51 to the 1-2-3-4 clutch regulator valve, through orifice #26 and enters the exhaust backfill circuit.