Symptom Chart
Torque Converter Clutch (TCC)
For torque converter operation,
REFER to: Torque Converter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation).
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) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
TCC priority valve stuck OFF |
DISASSEMBLE, CLEAN and INSPECT the TCC priority valve. If the bore, valve or spring is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
TCC regulator valve stuck OFF |
DISASSEMBLE, CLEAN and INSPECT the TCC regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
TCC damper missing or damaged. |
DISASSEMBLE, CLEAN and INSPECT the TCC damper. If the damper is missing or damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
Converter feed blow-off valve missing or damaged |
DISASSEMBLE, CLEAN and INSPECT the converter
feed blow-off valve. If the valve is missing or damaged, INSTALL a new
main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
CONV FD, MDA-TCC, APPLY, REL hydraulic circuit blocked or leaking |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for debris, blockage and leaks.
CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
REMOVE and INSPECT the front support
assembly and input shaft Teflon seals for damage, blockage and leaks. REFER to: Torque Converter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation). INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
||
TCC friction material worn or damaged |
INSTALL a new torque converter.
REFER to: Transmission - 3.0L EcoBoost (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
TCC always applied/stalls vehicle | TCC solenoid mechanically stuck ON |
INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
TCC priority valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the TCC priority valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
TCC regulator valve stuck ON |
DISASSEMBLE, CLEAN and INSPECT the TCC regulator valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
CONV FD, MDA-TCC, APPLY, REL hydraulic circuit cross leaks |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for cracks, warping, and damage.
If damage is found, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
REMOVE and INSPECT the front support
assembly and input shaft Teflon seals for damage, blockage and leaks. REFER to: Torque Converter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation). INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
||
TCC friction material worn or damaged |
INSTALL a new torque converter.
REFER to: Transmission - 3.0L EcoBoost (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
TCC cycles, shudders or chatters | Incorrect transmission strategy programmed into the TCM |
CARRY OUT the transmission strategy download and the adaptive learning drive cycle. REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures). REFER to: Adaptive Learning Drive Cycle (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80 MHT, General Procedures). |
TCC solenoid mechanically sticking |
INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
TCC priority valve sticking |
DISASSEMBLE, CLEAN and INSPECT the TCC priority valve. If the bore, valve or spring is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
TCC Regulator Valve sticking |
DISASSEMBLE, CLEAN and INSPECT the regulator
valve. If the bore or valve is damaged, INSTALL a new main control
valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
CONV FD, MDA-TCC, APPLY, REL hydraulic circuit blocked or leaking |
DISASSEMBLE and INSPECT the main control
valve body and separator plate passages for debris, blockage and leaks.
CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
|
REMOVE and INSPECT the front support
assembly and input shaft Teflon seals for damage, blockage and leaks. REFER to: Torque Converter (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation). INSTALL new components as necessary. REFER to: Transmission (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul). |
||
TCC friction material worn or damaged |
INSTALL a new torque converter.
REFER to: Transmission - 3.0L EcoBoost (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation). |
When the child safety locks are set, you cannot open the rear doors from the inside.
The child safety lock control is on the driver door.
Press the control to switch the child safety locks on. Press the control again to switch them off. A light on the child safety control illuminates when you switch them on.