Symptom Chart

WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

For torque converter operation, REFER to: Torque Converter .

Condition	Possible Sources	Action
TCC does not apply	TCC solenoid mechanically stuck OFF	INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) .
	Bypass Clutch Control 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 .
	Converter Release 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 .
	CAPLY, CREL, CAPLY F, VFS6 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 .
	Input shaft worn, input shaft seals cut or leaking, worn pump bushings	INSPECT input shaft for wear, leaking or cut seals, or pump bushing wear, INSTALL new parts as necessary. REFER to: Transmission .
	TCC friction material worn or damaged	INSTALL a new TCC.
TCC always applied/stalls vehicle	TCC solenoid mechanically stuck ON	INSTALL a new TCC solenoid. REFER to: Shift Solenoids (SS) .
	Bypass Clutch Control 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 .
	Converter Release 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 .
	CAPLY, CREL, CAPLY F, VFS6 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 .
	TCC friction material worn or damaged	INSTALL a new TCC.
TCC cycles, shudders or chatters	Incorrect Transmission Strategy programmed into PCM.	PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
	TCC solenoid mechanically sticking	INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
	Bypass Clutch Control 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 .
	Converter Release 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 .
	CAPLY, CREL, CAPLY F, VFS6 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 .
	TCC friction material worn or damaged	INSTALL a new TCC.