Forward Clutch Assembly

WARNING: This page is about a different car, the 2018 Ford F-350 Super Duty and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Forward Clutch

For forward clutch operation, REFER to: Forward Clutch Assembly .

Condition	Possible Sources	Action
Forward clutch does not apply	SSA is mechanically stuck OFF	INSTALL a new solenoid. Refer to: Shift Solenoids (SS) .
	Clutch A 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 . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
	CLA, DRIVE, VFS1 hydraulic circuits blocked/leaking	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage. CLEAN as necessary. Refer to: Main Control Valve Body .
	Input shaft, input shaft Teflon™ seals, forward clutch drum	INSPECT components wear and damage. CLEAN and/or INSTALL new components necessary. Refer to: Transmission .
	Forward clutch friction plates, piston seals	INSPECT components wear and damage. CLEAN and/or INSTALL new components necessary. Refer to: Transmission .
Forward clutch always applied	SSA mechanically stuck ON	INSTALL a new solenoid. Refer to: Shift Solenoids (SS) .
Clutch A 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 . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
CLA, DRIVE, VFS1 hydraulic circuits blocked/leaking	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage. CLEAN as necessary. Refer to: Main Control Valve Body .
Forward clutch friction plates	INSPECT components wear and damage. CLEAN and/or INSTALL new components necessary. Refer to: Transmission .
Forward clutch piston seals	INSPECT components wear and damage. CLEAN and/or INSTALL new components necessary. Refer to: Transmission .
Forward clutch delayed/soft/slipping apply	Incorrect transmission strategy programmed into PCM.	PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
	SSA mechanically sticking	INSTALL a new solenoid. Refer to: Shift Solenoids (SS) .
	Clutch A regulator or latch valve sticking	DISASSEMBLE, CLEAN and INSPECT the valves. If bore or valve is damaged, INSTALL a new main control valve body. Refer to: Main Control Valve Body .
	CLA, DRIVE, VFS1 hydraulic circuits blocked/leaking	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage. CLEAN as necessary. Refer to: Main Control Valve Body .
	Input shaft, input shaft Teflon™ seals, forward clutch drum	DISASSEMBLE and INSPECT the transmission passages for debris/blockage. CLEAN as necessary. Refer to: Transmission .
	Forward clutch friction plates	DISASSEMBLE and INSPECT the transmission passages for debris/blockage. CLEAN as necessary. Refer to: Transmission .
	Forward clutch piston seals	DISASSEMBLE and INSPECT the transmission passages for debris/blockage. CLEAN as necessary. Refer to: Transmission .
Forward clutch harsh apply	Incorrect transmission strategy programmed into PCM.	PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
	SSA mechanically sticking	INSTALL a new solenoid. Refer to: Shift Solenoids (SS) .
	Clutch A regulator valve sticking	DISASSEMBLE, CLEAN and INSPECT the valves. If bore or valve is damaged, INSTALL a new main control valve body. Refer to: Main Control Valve Body . PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download .
	CLA, DRIVE, VFS1 hydraulic circuits blocked/leaking	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris/blockage. CLEAN as necessary. Refer to: Main Control Valve Body .
	Input shaft, input shaft Teflon™ seals, forward clutch drum	DISASSEMBLE and INSPECT the transmission passages for debris/blockage. CLEAN as necessary. Refer to: Transmission .
-	Forward clutch friction plates or piston seals	DISASSEMBLE and INSPECT the transmission passages for debris/blockage. CLEAN as necessary. Refer to: Transmission .
-	Forward clutch piston return spring	DISASSEMBLE and INSPECT the transmission passages for debris/blockage. CLEAN as necessary. Refer to: Transmission .