Lincoln Corsair Manuals

Lincoln Corsair: Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40 / Diagnosis and Testing - Hydraulic Selectable One-Way Clutch Assembly

Lincoln Corsair 2020-2026 Service Manual / Powertrain / Automatic Transmission / Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40 / Diagnosis and Testing - Hydraulic Selectable One-Way Clutch Assembly

Symptom Chart

For selectable one-way clutch operation,
REFER to: Hydraulic Selectable One-Way Clutch Assembly (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Description and Operation).


  Hydraulic Selectable One-Way Clutch (OWC)


Condition Possible Sources Action
Selectable one-way clutch (OWC) does not apply SSD is mechanically stuck off INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation).
Hydraulic selectable one way clutch (OWC) control or limit valve valve stuck off DISASSEMBLE, CLEAN and INSPECT the 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 - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation).
PERFORM the Transmission Strategy Download,REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, General Procedures).
SOWC APPLY hydraulic circuit 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 (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation).
Hydraulic selectable one-way clutch (OWC) actuator INSPECT the components for wear and damage. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul).
Hydraulic Selectable one-way clutch (OWC) always applied SSD mechanically stuck INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation).
Hydraulic selectable one way clutch (OWC) control or limit valve valve stuck on DISASSEMBLE, CLEAN and INSPECT the 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 - 8-Speed Automatic Transmission – 8F35/8F40, Removal and Installation).
PERFORM the Transmission Strategy Download, REFER to: Transmission Strategy Download (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, General Procedures).
Hydraulic selectable one-way clutch (OWC) actuator INSPECT the components for wear and damage. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Overhaul).

    Diagnosis and Testing - C Clutch

    Symptom Chart For C clutch operation, REFER to: C Clutch (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Description and Operation)...

    Diagnosis and Testing - E Clutch

    Symptom Chart E clutch For E clutch operation, REFER to: E Clutch (307-01A Automatic Transmission - 8-Speed Automatic Transmission – 8F35/8F40, Description and Operation)...

    Other information:

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    Selecting a Drive Mode. DRIVE MODES

    Selecting a Drive Mode

    Note: Drive mode changes may not be available when the ignition is off.

    Lincoln Corsair. Selecting a Drive Mode. DRIVE MODES

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