Symptom Chart
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.
F Clutch
For F clutch operation, REFER to: F Clutch .
F Clutch
| Condition | Possible Sources | Action |
|---|---|---|
| F clutch does not apply | SSF mechanically stuck OFF | INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . |
| F clutch control valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the F clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body | |
| F clutch latch valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the F clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body | |
| F 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 F clutch. REFER to: Special Testing Procedures . If a leak is detected, INSPECT the front support assembly, input shaft Teflon seals and F clutch piston seals for leaks. INSTALL new components as necessary. REFER to: Transmission | ||
| CDF clutch cylinder, clutch and planetary carrier, ring gear no. 4 | DISASSEMBLE and INSPECT the CDF clutch cylinder, the clutch and planetary carrier and ring gear no. 4 for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| F clutch piston seals | DISASSEMBLE and INSPECT the F clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| F clutch friction plates | DISASSEMBLE and INSPECT the F clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| F clutch always applied | SSF mechanically stuck ON | INSTALL a new solenoid. REFER to: Shift Solenoids (SS) . |
| F clutch control valve stuck ON | DISASSEMBLE, CLEAN and INSPECT the F clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body | |
| F clutch latch valve stuck OFF | DISASSEMBLE, CLEAN and INSPECT the F clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body | |
| F 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 | |
| CDF clutch cylinder, clutch and planetary carrier, ring gear no. 4 | DISASSEMBLE and INSPECT the CDF clutch cylinder, the clutch and planetary carrier and ring gear no. 4 for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| F clutch piston return spring | DISASSEMBLE and INSPECT the F clutch piston return spring for damage. INSTALL new components as necessary. REFER to: Transmission | |
| F clutch friction plates | DISASSEMBLE and INSPECT the F clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| F 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 . | |
| SSF 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) . |
|
| F 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 F clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body . |
|
| F 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 F clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body |
|
| F 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 F clutch. REFER to: Special Testing Procedures . If a leak is detected, INSPECT the front support assembly, input shaft Teflon seals and F clutch piston seals for leaks. INSTALL new components as necessary. REFER to: Transmission | ||
| F clutch piston seals | DISASSEMBLE and INSPECT the F clutch piston seals for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| F clutch friction plates | DISASSEMBLE and INSPECT the F clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission | |
| F 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 . | |
| SSF 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) . |
|
| F 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 F clutch control valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body |
|
| F 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 F clutch latch valve. If the bore or valve is damaged, INSTALL a new main control valve body. REFER to: Main Control Valve Body |
|
| F 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 | |
| F clutch piston return spring | DISASSEMBLE and INSPECT the F clutch piston return spring for damage. INSTALL new components as necessary. REFER to: Transmission | |
| F clutch friction plates | DISASSEMBLE and INSPECT the F clutch friction and steel plates for wear and damage. INSTALL new components as necessary. REFER to: Transmission |