TCC System

WARNING: This page is about a different variant/trim than selected.

For TCC operation, refer to Hydraulic System - 6F35 .

Torque Converter Clutch

Condition	Possible Sources	Action
TCC does not apply	Solenoid filter blocked to the TCC solenoid	INSTALL a new TCC solenoid. REFER to Solenoids .
TCC solenoid mechanically stuck OFF		INSTALL a new TCC solenoid. REFER to Solenoids .
TCC regulator valve stuck OFF		DISASSEMBLE, CLEAN and INSPECT the TCC regulator 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 pump assembly for debris/blockage. CLEAN as necessary. REFER to Transmission - Overhaul to REMOVE the pump assembly.
TCC APPLY hydraulic circuit blocked or leaking		DISASSEMBLE and INSPECT the transmission, main control and pump assembly passages for debris/blockage. REFER to Transmission - Overhaul and Main Control - Overhaul and CLEAN as necessary. REFER to Hydraulic System - 6F35 .
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 Solenoids .
TCC regulator valve stuck ON		DISASSEMBLE, CLEAN and INSPECT the TCC regulator 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 pump assembly for debris/blockage. CLEAN as necessary. REFER to Transmission - Overhaul to REMOVE the pump assembly.
TCC RELEASE hydraulic circuit blocked or leaking		DISASSEMBLE and INSPECT the transmission, main control and pump assembly passages for debris/blockage. REFER to Transmission - Overhaul and Main Control - Overhaul and CLEAN as necessary. REFER to Hydraulic System - 6F35 .
TCC welded or damaged		INSTALL a new torque converter. REFER to Transmission .
TCC cycles, shudders or chatters	Incorrect Solenoid Body Strategy programmed into TCM	REFER to Solenoid Body Strategy Download .
Solenoid filter or seal damaged at TCC solenoid		INSTALL a new TCC solenoid. REFER to Solenoids .
TCC solenoid mechanically sticking		INSTALL a new TCC solenoid. REFER to Solenoids .
TCC regulator valve, springs, clips - loose, stuck, binding, missing, assembled incorrectly		DISASSEMBLE, CLEAN and INSPECT the TCC regulator 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, assembled incorrectly		DISASSEMBLE and INSPECT the pump assembly for debris/blockage. CLEAN as necessary. REFER to Transmission - Overhaul to REMOVE the pump assembly.
TCC RELEASE/TCC APPLY hydraulic circuits blocked or leaking		DISASSEMBLE and INSPECT the transmission, main control and pump assembly passages for debris/blockage. REFER to Transmission - Overhaul and Main Control - Overhaul and CLEAN as necessary. REFER to Hydraulic System - 6F35 .