Ford Fusion Manuals

Ford Fusion: Automatic Transmission - 6-Speed Automatic Transmission – 6F35 / Overdrive Clutch Assembly. Diagnosis and Testing

Overdrive Clutch

For overdrive clutch operation, REFER to: Transmission Description - System Operation and Component Description (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Description and Operation).
REFER to: Overdrive Clutch Assembly (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Description and Operation).

NOTE: The Low Reverse and Overdrive clutches use SSD, CBLR/C456 regulator valve, SSD SIG and CBLR/C456 SUPPLY hydraulic circuits, and the multiplex shift valve. Faults with these components will affect reverse, 1,4,5 and 6 gears. If the vehicle operates correctly in first and reverse, these components are functioning properly


  Overdrive Clutch


Condition Possible Sources Action
Overdrive clutch does not apply SSD filter screen blocked CLEAN or INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
SSD is mechanically stuck OFF INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
Overdrive clutch (CBLR/C456) regulator valve stuck OFF DISASSEMBLE, CLEAN and INSPECT the overdrive clutch regulator valve. If bore or valve is damaged, INSTALL a new main control.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
SSD SIG, CBLR/C456 SUPPLY, C456 SUPPLY, C456 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 (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Multiplex shift valve stuck in applied position DISASSEMBLE, CLEAN and INSPECT the multiplex shift valve. If bore or valve is damaged, INSTALL a new main control valve body.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
C456 supply hydraulic circuit blocked or leaking DISASSEMBLE and INSPECT the transmission cover and support tower passages for debris/blockage. CLEAN as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Rear planetary carrier/center ring gear INSPECT the planetary carrier/center ring gear for wear and damage. INSTALL new components necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch friction plates DISASSEMBLE and INSPECT the overdrive clutch friction and steel plates. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch piston seal leakage INSPECT the overdrive clutch piston and seals. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch always applied SSD O-rings damaged INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
SSD mechanically stuck ON INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
Overdrive clutch regulator (CBLR/C456) valve stuck ON DISASSEMBLE, CLEAN and INSPECT the overdrive clutch regulator valve and bias spring. If bore or valve is damaged, INSTALL a new main control valve body.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
SSD SIG, CBLR/C456 SUPPLY, C456 SUPPLY, C456 hydraulic circuits blocked/leaking DISASSEMBLE and INSPECT the main control valve body and separator plate passages for leakage. CLEAN as necessary.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch friction plates DISASSEMBLE and INSPECT the overdrive clutch friction and steel plates. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch piston return spring. INSPECT the return spring for damage. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch delayed/soft/slipping apply Incorrect Transmission Strategy programmed into PCM Remove SSD and record solenoid band number. REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
Using the scan tool, verify the correct band number is stored in the PCM. If band numbers do not match, replace SSD with correct band number.
SSD filter screen partially blocked INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
SSD mechanically sticking INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
Overdrive clutch regulator (CBLR/C456) valve stuck ON DISASSEMBLE, CLEAN and INSPECT the overdrive clutch regulator valve. If bore or valve is damaged, INSTALL a new main control valve body.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
SSD SIG, CBLR/C456 SUPPLY, C456 SUPPLY, C456 hydraulic circuits blocked/leaking DISASSEMBLE and INSPECT the main control valve body and separator plate passages for leakage. CLEAN as necessary.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Multiplex shift valve sticking DISASSEMBLE, CLEAN and INSPECT the multiplex shift valve. If bore or valve is damaged, INSTALL a new main control valve body.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
C456 supply hydraulic circuit blocked or leaking DISASSEMBLE and INSPECT the transmission cover and support tower passages for debris/blockage. CLEAN as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch friction plates DISASSEMBLE and INSPECT the overdrive clutch friction and steel plates. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch piston seal leakage INSPECT the overdrive clutch piston and seals. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch harsh apply Incorrect Transmission Strategy programmed into PCM Remove SSD and record solenoid band number. REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
Using the scan tool, verify the correct band number is stored in the PCM. If band numbers do not match, replace SSD with correct band number.
SSD O-rings damaged INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
SSD mechanically sticking INSTALL a new solenoid.
REFER to: Solenoid (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Removal and Installation).
Overdrive clutch regulator (CBLR/C456) valve sticking DISASSEMBLE, CLEAN and INSPECT the overdrive clutch regulator valve. If bore, valve or spring is damaged, INSTALL a new main control valve body.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch (CBLR/C456) boost valve sticking DISASSEMBLE, CLEAN and INSPECT the overdrive clutch boost valve and bias spring. If bore, valve or spring is damaged, INSTALL a new main control valve body.
REFER to: Main Control Valve Body (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
SSD SIG, CBLR/C456 SUPPLY, C456 SUPPLY, C456 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 (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch friction plates DISASSEMBLE and INSPECT the overdrive clutch friction and steel plates. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).
Overdrive clutch piston return spring INSPECT the return spring for proper installation and damage. INSTALL new components as necessary.
REFER to: Transmission (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Overhaul).

    Low/Reverse Clutch Assembly. Diagnosis and Testing

    Low/Reverse Clutch For low/reverse clutch operation, REFER to: Transmission Description - System Operation and Component Description (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Description and Operation)...

    Low One-Way Clutch Assembly. Diagnosis and Testing

    Low One Way Clutch For low one way clutch operation, REFER to: Transmission Description (307-01A Automatic Transmission - 6-Speed Automatic Transmission – 6F35, Description and Operation)...

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