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 .
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 .
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 .