Lincoln Aviator: 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) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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).
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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul).
A clutch always applied SSA mechanically stuck ON INSTALL a new solenoid.
REFER to: Shift Solenoids (SS) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 MHT, 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) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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).
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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 MHT, 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) (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, 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 (307-01A Automatic Transmission - 10-Speed Automatic Transmission – 10R60, Overhaul).

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    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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