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Home >> Ford >> 2022 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 642 (Automatic Transmission - 10-Speed Automatic Transmission - 10R80 (DTC Charts 5.0L - Assembly)) >> Diagnosis And Testing >> B Clutch

B Clutch

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart 

B Clutch 

For B clutch operation, REFER to: B Clutch .

B Clutch 

Condition Possible Sources Action
B clutch does not apply SSB mechanically stuck OFF INSTALL a new solenoid. REFER to: Shift Solenoids (SS) .
B clutch control valve stuck OFF DISASSEMBLE, CLEAN and INSPECT the B clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B clutch latch valve stuck OFF DISASSEMBLE, CLEAN and INSPECT the B clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B 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 .
CARRY OUT the air pressure test on the B clutch. REFER to: Special Testing Procedures . If a leak is detected, INSPECT the front support assembly and B clutch piston seals for leaks. INSTALL new components as necessary. REFER to: Transmission .
Front support assembly, sun gear no. 1 DISASSEMBLE and INSPECT the front support assembly hydraulic passages for debris, blockage and leaks. INSPECT the front support assembly and sun gear no. 1 for wear and damage. CLEAN or INSTALL new components as necessary. REFER to: Transmission .
B clutch piston seals DISASSEMBLE and INSPECT the B clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission .
B clutch friction plates DISASSEMBLE and INSPECT the B clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission .
B clutch always applied SSB mechanically stuck ON INSTALL a new solenoid. REFER to: Shift Solenoids (SS) .
B clutch control valve stuck ON DISASSEMBLE, CLEAN and INSPECT the B clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B clutch latch valve stuck ON DISASSEMBLE, CLEAN and INSPECT the B clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B 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 .
Front support assembly, sun gear no. 1 DISASSEMBLE and INSPECT the components for wear and damage. INSTALL new components necessary. REFER to: Transmission .
B clutch separating springs DISASSEMBLE and INSPECT the B clutch separating springs for damage. INSTALL new components as necessary. REFER to: Transmission .
B clutch friction plates DISASSEMBLE and INSPECT the B clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission .
B 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 . REFER to: Adaptive Learning Drive Cycle .
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 .
SSB mechanically sticking If the vehicle has less than 5, 000 miles (8, 000 km), CARRY OUT the PCM/ TCM - 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) .
B clutch control valve sticking If the vehicle has less than 5, 000 miles (8, 000 km), CARRY OUT the PCM/ TCM - Transmission Accelerated Main Control Break In Routine 3 times  using the diagnostic scan tool.
For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the B clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B clutch latch valve sticking If the vehicle has less than 5, 000 miles (8, 000 km), CARRY OUT the PCM/ TCM - Transmission Accelerated Main Control Break In Routine 3 times  using the diagnostic scan tool.
For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the B clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B 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 .
CARRY OUT the air pressure test on the B clutch. REFER to: Special Testing Procedures . If a leak is detected, INSPECT the front support assembly and B clutch piston seals for leaks. INSTALL new components as necessary. REFER to: Transmission .
B clutch piston seals DISASSEMBLE and INSPECT the B clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission .
B clutch friction plates DISASSEMBLE and INSPECT the B clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission .
B 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 . REFER to: Adaptive Learning Drive Cycle .
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 .
SSB mechanically sticking If the vehicle has less than 5, 000 miles (8, 000 km), CARRY OUT the PCM/ TCM - 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) .
B clutch control valve sticking If the vehicle has less than 5, 000 miles (8, 000 km), CARRY OUT the PCM/ TCM - Transmission Accelerated Main Control Break In Routine 3 times  using the diagnostic scan tool.
For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the B clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B clutch latch valve sticking If the vehicle has less than 5, 000 miles (8, 000 km), CARRY OUT the PCM/ TCM - Transmission Accelerated Main Control Break In Routine 3 times  using the diagnostic scan tool.
For all other vehicles, DISASSEMBLE, CLEAN and INSPECT the B clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body .
B 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 .
B clutch separating springs DISASSEMBLE and INSPECT the B clutch separating springs for damage. INSTALL new components as necessary. REFER to: Transmission .
B clutch friction plates DISASSEMBLE and INSPECT the B clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission .
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