Torque Converter Clutch (TCC)
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
For torque converter operation, REFER to: Main Control Valve Body .
| Condition | Possible Sources | Action |
|---|---|---|
| TCC does not apply | TCC solenoid mechanically stuck OFF | INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) . |
| TCC Regulator Valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the regulator valve. If bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| CONV FD, MDA-TCC, APPLY, REL hydraulic circuit blocked or leaking | DISASSEMBLE, CLEAN and INSPECT the valves. If bore or valve is damaged, INSTALL a new main control. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| TCC friction material worn or damaged | INSTALL a new TCC. REFER to: Transmission . | |
| TCC solenoid dampner missing or damaged. | DISASSEMBLE, CLEAN and INSPECT the TCC solenoid dampner. If dampner is missing or damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| Converter feed blow-off valve missing. | DISASSEMBLE, CLEAN and INSPECT the converter feed blow-off valve, if missing INSTALL a new main control. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| TCC always applied/stalls vehicle | TCC solenoid mechanically stuck ON, TCC regulator valve spring broken or spring stuck in the compressed position. | INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) . TCC solenoid mechanically stuck OFF REFER to: Transmission Strategy Download . If TCC regulator valve spring is broken, stuck or missing, INSTALL a new main control. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). |
| TCC Regulator Valve stuck ON | DISASSEMBLE, CLEAN and INSPECT the regulator valve. If bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| TCC friction material worn or damaged | INSTALL a new TCC. REFER to: Transmission . | |
| CONV FD, MDA-TCC, APPLY, REL hydraulic circuit blocked or leaking | DISASSEMBLE, CLEAN and INSPECT the valves. If bore or valve is damaged, INSTALL a new main control. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| TCC cycles, shudders or chatters | Incorrect transmission strategy programmed into the TCM | PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download . |
| TCC solenoid mechanically sticking | INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) . | |
| TCC Regulator Valve stuck ON | DISASSEMBLE, CLEAN and INSPECT the regulator valve. If bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| CONV FD, MDA-TCC, APPLY, REL hydraulic circuit blocked or leaking | DISASSEMBLE, CLEAN and INSPECT the valves. If bore or valve is damaged, INSTALL a new main control. REFER to: Main Control Valve Body . REFER to: Main Control Valve Body - Vehicles With: Column Shift (307-01). | |
| TCC friction material worn or damaged | INSTALL a new TCC. REFER to: Transmission . |