Torque Converter Clutch (TCC)
WARNING: This page is about a different car, the 2019 Ford F-350 Super Duty and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
For torque converter operation, REFER to: Torque Converter .
For hydraulic circuit identification, REFER to: Transmission Description - System Operation and Component Description .
Torque Converter Clutch (TCC)
| Condition | Possible Sources | Action |
|---|---|---|
| TCC does not apply | TCC solenoid mechanically stuck OFF | INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) . |
| Bypass Clutch Control Regulator Valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the bypass clutch control regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| Converter Release Regulator Valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the converter release regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| CAPLY, CREL, CAPLY F, VFS6 hydraulic circuit blocked or leaking | DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage/damage. CLEAN as necessary. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| TCC friction material worn or damaged | INSTALL a new torque converter. REFER to: Transmission . | |
| TCC always applied/stalls vehicle | TCC solenoid mechanically stuck ON | INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) . |
| Bypass Clutch Control Regulator Valve stuck ON | DISASSEMBLE, CLEAN and INSPECT the bypass clutch control regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| Converter Release Regulator Valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the converter release regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| CAPLY, CREL, CAPLY F, VFS6 hydraulic circuit blocked or leaking | DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage/damage. CLEAN as necessary. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| TCC friction material worn or damaged | INSTALL a new torque converter. REFER to: Transmission . | |
| TCC cycles, shudders or chatters | Incorrect Transmission Strategy programmed into PCM. | CARRY OUT the Transmission Strategy Download. REFER to: Transmission Strategy Download . |
| TCC solenoid mechanically sticking | INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) . CARRY OUT the Transmission Strategy Download, REFER to: Transmission Strategy Download . | |
| Bypass Clutch Control Regulator Valve stuck ON | DISASSEMBLE, CLEAN and INSPECT the bypass clutch control regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| Converter Release Regulator Valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the converter release regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| CAPLY, CREL, CAPLY F, VFS6 hydraulic circuit blocked or leaking | DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage/damage. CLEAN as necessary. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body . | |
| TCC friction material worn or damaged | INSTALL a new torque converter. REFER to: Transmission . |