A Clutch Assembly
WARNING: This page is about a different car, the 2024 Ford Transit-350 HD, 2024 Ford Transit-350, 2024 Ford Transit-250, and 2024 Ford Transit-150. However, it is still accessible from the selected car via links, so may be relevant.
A Clutch
For A clutch operation, REFER to: A Clutch .
A Clutch
| Condition | Possible Sources | Action |
|---|---|---|
| A clutch does not apply | SSA mechanically stuck OFF | INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . |
| 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 . | |
| 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 | |
| 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 | |
| CARRY OUT the air pressure test on the A clutch. REFER to: Special Testing Procedures . 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 . | ||
| 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 . | |
| A clutch piston seals | DISASSEMBLE and INSPECT the A clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| 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 | |
| A clutch always applied | SSA mechanically stuck ON | INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . |
| 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 | |
| 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 | |
| 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 | |
| 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 . | |
| A clutch piston return spring | DISASSEMBLE and INSPECT the A clutch piston return spring for damage. INSTALL new components as necessary. REFER to: Transmission | |
| 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 | |
| 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 . 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 | |
| SSA mechanically sticking | CARRY OUT the PCM / TCM - Transmission Accelerated Main Control Break In Routine 3 times
using the diagnostic scan tool. CARRY OUT the adaptive learning drive cycle procedure. REFER to: Adaptive Learning Drive Cycle . If the Transmission Accelerated Main Control Break In Routine and adaptive learning drive cycle procedure do not correct the fault, INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . |
|
| A clutch control valve sticking | CARRY OUT the PCM / TCM - Transmission Accelerated Main Control Break In Routine 3 times
using the diagnostic scan tool. CARRY OUT the adaptive learning drive cycle procedure. REFER to: Adaptive Learning Drive Cycle . If the Transmission Accelerated Main Control Break In Routine and adaptive learning drive cycle procedure do not correct the fault, 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 |
|
| A clutch latch valve sticking | CARRY OUT the PCM / TCM - Transmission Accelerated Main Control Break In Routine 3 times
using the diagnostic scan tool. CARRY OUT the adaptive learning drive cycle procedure. REFER to: Adaptive Learning Drive Cycle . If the Transmission Accelerated Main Control Break In Routine and adaptive learning drive cycle procedure do not correct the fault, 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 . |
|
| 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 | |
| CARRY OUT the air pressure test on the A clutch. REFER to: Special Testing Procedures . 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 | ||
| A clutch piston seals | DISASSEMBLE and INSPECT the A clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| 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 | |
| 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 . 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 | |
| SSA mechanically sticking | CARRY OUT the PCM / TCM - Transmission Accelerated Main Control Break In Routine 3 times
using the diagnostic scan tool. CARRY OUT the adaptive learning drive cycle procedure. REFER to: Adaptive Learning Drive Cycle . If the Transmission Accelerated Main Control Break In Routine and adaptive learning drive cycle procedure do not correct the fault, INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . |
|
| A clutch control valve sticking | CARRY OUT the PCM / TCM - Transmission Accelerated Main Control Break In Routine 3 times
using the diagnostic scan tool. CARRY OUT the adaptive learning drive cycle procedure. REFER to: Adaptive Learning Drive Cycle . If the Transmission Accelerated Main Control Break In Routine and adaptive learning drive cycle procedure do not correct the fault, 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 . |
|
| A clutch latch valve sticking | CARRY OUT the PCM / TCM - Transmission Accelerated Main Control Break In Routine 3 times
using the diagnostic scan tool. CARRY OUT the adaptive learning drive cycle procedure. REFER to: Adaptive Learning Drive Cycle . If the Transmission Accelerated Main Control Break In Routine and adaptive learning drive cycle procedure do not correct the fault, 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 . |
|
| 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 | |
| A clutch piston return spring | DISASSEMBLE and INSPECT the A clutch piston return spring for damage. INSTALL new components as necessary. REFER to: Transmission | |
| 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 |