Ford Explorer: Automatic Transmission - 10-Speed Automatic Transmission – 10R60 / Diagnosis and Testing - A Clutch

Ford Explorer 2020-2024 Service Manual / Powertrain / Automatic Transmission / Automatic Transmission - 10-Speed Automatic Transmission – 10R60 / Diagnosis and Testing - A Clutch

Symptom Chart

A Clutch

For A clutch operation,
REFER to: A Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation).

A Clutch

Condition	Possible Sources	Action
A clutch does not apply	SSA mechanically stuck OFF	INSTALL a new solenoid. REFER to: Shift Solenoids (SS) (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation).
	A clutch control valve stuck OFF	DISASSEMBLE, CLEAN and INSPECT the A clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch latch valve stuck OFF	DISASSEMBLE, CLEAN and INSPECT the A clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch hydraulic circuits blocked/leaking	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris, blockage and leaks. CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch hydraulic circuits blocked/leaking	CARRY OUT the air pressure test on the A clutch. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If a leak is detected, INSPECT the front support assembly and A clutch piston seals for leaks. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	Front support assembly, ring gear no. 1	DISASSEMBLE and INSPECT the front support assembly hydraulic passages for debris, blockage or leaks. INSPECT the front support assembly and ring gear no. 1 for wear and damage. CLEAN or INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	A clutch piston seals	DISASSEMBLE and INSPECT the A clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	A clutch friction plates	DISASSEMBLE and INSPECT the A clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
A clutch always applied	SSA mechanically stuck ON	INSTALL a new solenoid. REFER to: Shift Solenoids (SS) (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation).
	A clutch control valve stuck ON	DISASSEMBLE, CLEAN and INSPECT the A clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch latch valve stuck ON	DISASSEMBLE, CLEAN and INSPECT the A clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch hydraulic circuit cross leaks	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for cracks, warping and damage. If damage is found, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	Front support assembly, ring gear no. 1	DISASSEMBLE and INSPECT the front support assembly hydraulic passages for debris, blockage and leaks. Inspect the front support assembly and ring gear no. 4 for wear and damage. CLEAN or INSTALL new components necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	A clutch piston return spring	DISASSEMBLE and INSPECT the A clutch piston return spring for damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	A clutch friction plates	DISASSEMBLE and INSPECT the A clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
A clutch delayed/soft/slipping apply	Incorrect transmission strategy programmed into PCM/ TCM.	CARRY OUT the Transmission Strategy Download and the Adaptive Learning Drive Cycle. REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures). REFER to: Adaptive Learning Drive Cycle (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, General Procedures).
	Low line pressure	CARRY OUT the line pressure test. If line pressure is low, REFER to the Line Pressure Diagnosis Chart. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
	SSA mechanically sticking	If the vehicle has less than 5,000 miles (8,000 km), CARRY OUT the PCM - Transmission Accelerated Main Control Break In routine 3 times using the diagnostic scan tool. For all other vehicles, INSTALL a new solenoid. REFER to: Shift Solenoids (SS) (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation).
	A clutch control valve sticking	If the vehicle has less than 5,000 miles (8,000 km), CARRY OUT the PCM - Transmission Accelerated Main Control Break In routine 3 times using the diagnostic scan tool. For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the A clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch latch valve sticking	If the vehicle has less than 5,000 miles (8,000 km), CARRY OUT the PCM - Transmission Accelerated Main Control Break In routine 3 times using the diagnostic scan tool. For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the A clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch hydraulic circuits blocked/leaking	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris, blockage and leaks. CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch hydraulic circuits blocked/leaking	CARRY OUT the air pressure test on the A clutch. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing). If a leak is detected, INSPECT the front support assembly and A clutch piston seals for leaks. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	A clutch piston seals	DISASSEMBLE and INSPECT the A clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	A clutch friction plates	DISASSEMBLE and INSPECT the A clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
A clutch harsh apply	Incorrect transmission strategy programmed into PCM/ TCM.	CARRY OUT the Transmission Strategy Download and the Adaptive Learning Drive Cycle., REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, General Procedures). REFER to: Adaptive Learning Drive Cycle (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, General Procedures).
	High line pressure	CARRY OUT the line pressure test. If line pressure is high, REFER to the Line Pressure Diagnosis Chart. REFER to: Special Testing Procedures (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Diagnosis and Testing).
	SSA mechanically sticking	If the vehicle has less than 5,000 miles (8,000 km), CARRY OUT the PCM - Transmission Accelerated Main Control Break In routine 3 times using the diagnostic scan tool. For all other vehicles, INSTALL a new solenoid. REFER to: Shift Solenoids (SS) (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Removal and Installation).
	A clutch control valve sticking	If the vehicle has less than 5,000 miles (8,000 km), CARRY OUT the PCM - Transmission Accelerated Main Control Break In routine 3 times using the diagnostic scan tool. For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the A clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch latch valve sticking	If the vehicle has less than 5,000 miles (8,000 km), CARRY OUT the PCM - Transmission Accelerated Main Control Break In routine 3 times using the diagnostic scan tool. For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the A clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch hydraulic circuit blocked/leaking	DISASSEMBLE and INSPECT the main control valve body and separator plate passages for debris, blockage and leaks. CLEAN as necessary. REFER to: Main Control Valve Body (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Removal and Installation).
	A clutch piston return spring	DISASSEMBLE and INSPECT the A clutch piston return spring for damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).
	A clutch friction plates	DISASSEMBLE and INSPECT the A clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission (307-01B Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Overhaul).

Diagnosis and Testing - Special Testing Procedures

Line Pressure Test This test verifies the line pressure is within specification. If available, refer to the Transmission Line Pressure Test general procedure to access the line pressure ..

Diagnosis and Testing - B Clutch

Symptom Chart B Clutch For B clutch operation, REFER to: B Clutch (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Description and Operation)...

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