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 . PERFORM the transmission strategy download. REFER to: Transmission Strategy Download .
TCC regulator apply valve stuck OFF		REMOVE the main control valve body. REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the TCC regulator apply valve. REFER to: Main Control Valve Body . If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
TCC control valve stuck OFF		REMOVE the main control valve body. REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the TCC control valve for debris/ blockage. CLEAN as necessary. REFER to: Main Control Valve Body . If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
TCC APPLY hydraulic circuit blocked or leaking		REMOVE the main control valve body. REFER to: Main Control Valve Body . INSPECT the transmission case and main control valve body TCC APPLY circuits for debris/blockage/leaking. 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 . PERFORM the transmission strategy download. REFER to: Transmission Strategy Download .
TCC regulator apply valve stuck ON		REMOVE the main control valve body. REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the TCC regulator apply valve. REFER to: Main Control Valve Body . If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
TCC control valve stuck ON		REMOVE the main control valve body. REFER to: Main Control Valve Body . DISASSEMBLE and INSPECT the TCC control valve for debris/ blockage. REFER to: Main Control Valve Body . CLEAN as necessary.
TCC RELEASE hydraulic circuit blocked or leaking		REMOVE the main control valve body. REFER to: Main Control Valve Body . INSPECT the transmission case and main control valve body TCC RELEASE circuits for debris/blockage/leaking. 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 filter. REFER to: Solenoid Body .
TCC solenoid mechanically sticking		INSTALL a new solenoid body. REFER to: Solenoid Body . PERFORM the transmission strategy download. REFER to: Transmission Strategy Download .
TCC regulator apply valve, springs, clips loose, stuck, binding, missing, misassembled		REMOVE the main control valve body. REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the TCC regulator apply valve. REFER to: Main Control Valve Body . If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
TCC control valve, springs, clips loose, stuck, binding, missing, misassembled		REMOVE the main control valve body. REFER to: Main Control Valve Body . DISASSEMBLE, CLEAN and INSPECT the TCC control valve for debris/ blockage. CLEAN as necessary. REFER to: Main Control Valve Body . If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
TCC RELEASE/TCC APPLY hydraulic circuit blocked or leaking		REMOVE the main control valve body. REFER to: Main Control Valve Body . INSPECT the transmission case and main control valve body TCC RELEASE and TCC APPLY circuits for debris/blockage/leaking. REFER to: Main Control Valve Body . CLEAN as necessary. REFER to: Transmission Description - System Operation and Component Description .