Torque Converter Clutch (TCC)
WARNING: This page is about a different variant/trim than selected.
For TCC operation, REFER to: Transmission Description - System Operation and Component Description .
Symptom Chart
| Symptom | Possible Sources | Action |
|---|---|---|
| TCC does not apply | Solenoid body filter blocked to the TCC solenoid | INSTALL a new solenoid body filter. REFER to: Solenoid Body . |
| TCC solenoid mechanically stuck OFF | INSTALL a new solenoid body. REFER to: Solenoid Body . | |
| TCC regulator apply valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the TCC regulator apply valve. If bore or valve is damaged, INSTALL a new main control. REFER to: Main Control Valve Body . | |
| TCC control valve stuck OFF | DISASSEMBLE and INSPECT the TCC control valve for debris/ blockage. CLEAN as necessary. REFER to: Main Control Valve Body . | |
| TCC APPLY hydraulic circuit blocked or leaking | DISASSEMBLE and INSPECT the transmission, main control passages for debris/blockage. REFER to: Main Control Valve Body . CLEAN as necessary. REFER to: Transmission Description - System Operation and Component Description . | |
| TCC friction material worn or damaged | INSTALL a new torque converter. REFER to: Transmission - 3.5L EcoBoost (257kW/350PS) (307-01B). REFER to: Transmission - 3.5L Duratec (209kW/284PS) (307-01B). REFER to: Transmission - 3.7L Duratec (227kW/301PS) (307-01B). | |
| TCC always applied/stalls vehicle | TCC solenoid mechanically stuck ON | INSTALL a new solenoid body. REFER to: Solenoid Body . |
| TCC regulator apply valve stuck ON | DISASSEMBLE, CLEAN and INSPECT the TCC regulator apply valve. If bore or valve is damaged, INSTALL a new main control. REFER to: Main Control Valve Body . | |
| TCC control valve stuck ON | DISASSEMBLE and INSPECT the TCC control valve for debris/ blockage. CLEAN as necessary. REFER to: Main Control Valve Body . | |
| TCC RELEASE hydraulic circuit blocked or leaking | DISASSEMBLE and INSPECT the transmission, main control passages for debris/blockage. REFER to: Main Control Valve Body . CLEAN as necessary. REFER to: Transmission Description - System Operation and Component Description . | |
| TCC welded or damaged | INSTALL a new torque converter. REFER to: Transmission - 3.5L EcoBoost (257kW/350PS) (307-01B). REFER to: Transmission - 3.5L Duratec (209kW/284PS) (307-01B). REFER to: Transmission - 3.7L Duratec (227kW/301PS) (307-01B). | |
| TCC cycles, shudders or chatters | Incorrect Transmission Strategy programmed into the PCM | PERFORM transmission strategy download. REFER to: Transmission Strategy Download . |
| TCC solenoid filter or seal damaged | INSTALL a new solenoid body or filter. REFER to: Solenoid Body . | |
| TCC solenoid mechanically sticking | INSTALL a new solenoid body. REFER to: Solenoid Body . | |
| TCC regulator apply valve, springs, clips loose, stuck, binding, missing, misassembled | DISASSEMBLE, CLEAN and INSPECT the TCC regulator apply valve. If bore or valve is damaged, INSTALL a new main control. REFER to: Main Control Valve Body . | |
| TCC control valve, springs, clips loose, stuck, binding, missing, misassembled | DISASSEMBLE and INSPECT the main control for debris/blockage. CLEAN as necessary. REFER to: Main Control Valve Body . | |
| TCC RELEASE/TCC APPLY hydraulic circuit blocked or leaking | DISASSEMBLE and INSPECT the transmission, main control for debris/blockage. REFER to: Main Control Valve Body . CLEAN as necessary. REFER to: Transmission Description - System Operation and Component Description . | |