Diagnosis By Symptom
Symptom Chart(s)
Symptom Chart: Automatic Transmission
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to: Diagnostic Methods .
In most circumstances the PCM sets a DTC to help guide with diagnostics. Refer to the DTC Charts before using the Symptom Chart.
| Symptom | Possible Sources | Action |
|---|---|---|
| Engagement Concerns | No Forward | Forward clutch damaged or worn. Refer to: Forward Clutch Assembly . |
| No Reverse | Direct clutch damaged or worn. Refer to: Direct Clutch Assembly
. Low/reverse clutch damaged or worn. Refer to: Low/Reverse Clutch Assembly . |
|
| Harsh Reverse | Direct clutch damaged or worn. Refer to: Direct Clutch Assembly . | |
| Harsh Forward | Forward clutch damaged or worn. Refer to: Forward Clutch Assembly . | |
| Delayed/Soft Reverse | Direct clutch damaged or worn. Refer to: Direct Clutch Assembly
. Low/Reverse clutch damaged or worn. Refer to: Low/Reverse Clutch Assembly . |
|
| Delayed Soft/Forward | Forward clutch damaged or worn. Refer to: Forward Clutch Assembly . | |
| No Forward and No Reverse | Check the transmission fluid level. Refer to: Transmission Fluid Level Check . Inspect the filter and pump assembly. Refer to: Pump Assembly . |
|
| Delayed/Soft Forward and Reverse | Inspect the filter and pump assembly. Refer to: Pump Assembly . | |
| Neutral after Launch | Low one-way clutch assembly damaged. Refer to: Low One-Way Clutch Assembly . | |
| Shift Concerns | No 1-2 Shift/Harsh/Soft/Slipping | Intermediate clutch damaged or worn. Refer to: Intermediate Clutch Assembly
. Forward clutch assembly damaged or worn. Refer to: Forward Clutch Assembly . Intermediate clutch damaged or worn. Refer to: Low One-Way Clutch Assembly . |
| No 2-3 Shift/Harsh/Soft/Slipping | Direct clutch damaged or worn. Refer to: Direct Clutch Assembly
. Forward clutch assembly damaged or worn. Refer to: Forward Clutch Assembly . Intermediate clutch damaged or worn. Refer to: Intermediate Clutch Assembly . |
|
| No 3-4 Shift/Harsh/Soft/Slipping | Overdrive clutch assembly damaged or worn. Refer to: Overdrive Clutch Assembly
. Forward clutch assembly damaged or worn. Refer to: Forward Clutch Assembly . Forward clutch damaged or worn. Refer to: Direct Clutch Assembly . |
|
| No 4-5 Shift/Harsh/Soft/Slipping | Direct clutch damaged or worn. Refer to: Direct Clutch Assembly
. Overdrive clutch damaged or worn. Refer to: Overdrive Clutch Assembly . Forward clutch damaged or worn. Refer to: Forward Clutch Assembly . |
|
| No 5-6 Shift/Harsh/Soft/Slipping | Intermediate clutch assembly damaged or worn. Refer to: Intermediate Clutch Assembly
. Direct clutch assembly damaged or worn. Refer to: Direct Clutch Assembly . |
|
| Only Gears 1, 2, 3, 4 Available | Forward clutch assembly stuck on. Refer to: Forward Clutch Assembly . | |
| Only Gears 3 and 5 Available | Direct clutch assembly stuck on. Refer to: Direct Clutch Assembly . | |
| Only Gears 2 and 6 Available | Intermediate clutch assembly stuck on. Refer to: Intermediate Clutch Assembly . | |
| Only Gears 4, 5, 6 Available | Overdrive clutch assembly stuck on. Refer to: Overdrive Clutch Assembly . | |
| Only Gears 1 and R Available | Low/reverse clutch stuck on. Refer to: Low/Reverse Clutch Assembly
. Low one-way clutch assembly damaged. Refer to: Low One-Way Clutch Assembly . |
|
| No Engine Braking in Low | Low/reverse clutch damaged or worn. Refer to: Low/Reverse Clutch Assembly . | |
| Torque Converter Operation Concerns | No Apply | TCC damaged or worn. Refer to: Torque Converter Clutch (TCC) . |
| Always Applied (engine stalls) | TCC damaged or worn. Refer to: Torque Converter Clutch (TCC) . | |
| Cycling/Shutter/Chatter | TCC damaged or worn. Refer to: Torque Converter Clutch (TCC) . | |
| Other Concerns | Selector Lever High Effort | Selector lever cable routed wrong, binding or damaged. Refer to: Selector Lever Cable . |
| External Leaks | Damaged or worn seals. Refer to: Leakage Inspection . | |
| Noise | Engine drive accessories, suspension, CV joints, REFER to: Noise, Vibration and Harshness (NVH) . | |
| Vibration | Engine drive accessories, suspension, CV joints, transmission fluid cooler tubes, REFER to: Noise, Vibration and Harshness (NVH) . | |
| No Park Range | Inspect the selector lever cable for correct adjustment. Refer to: Selector Lever Cable Adjustment . | |
| INSPECT the manual control lever for damage, wear or correct installation. Refer to: Diagnosis By Symptom . | ||
| INSPECT the park pawl, park pawl actuator, and TR sensor for damage or wear. Refer to: Transmission Range (TR) Sensor . | ||
| INSPECT the final drive differential and final drive chain for damage. Refer to: Diagnosis By Symptom . | ||
| Overheating | Transmission fluid cooling system damaged. Refer to: Transmission Cooling . | |