Diagnosis By Symptom
WARNING: This page is about a different car, the 2018 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
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 Chart: PCM before using the Symptom Chart. The Symptom column lists the vehicle condition. The Possible Sources column lists a detailed vehicle condition. The Action column lists the action to be performed to determine the cause of the condition. Each action lists the components that can cause the symptom and the individual components in that system. The components are listed in order of disassembly. Use the list of components and the required action to focus on disassembly inspections for the root cause of the concern.
| 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 . Damaged center support. 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 . Damaged center support. REFER to: Forward Clutch Assembly . |
|
| Delayed/Soft Reverse | Direct clutch damaged or worn. REFER to: Direct Clutch Assembly . Lo/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. Filter or pump assembly. REFER to: Pump Assembly . |
|
| Delayed/Soft Forward and Reverse | Filter or 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 . Low one-way clutch assembly damaged. REFER to: Low One-Way Clutch Assembly . Forward clutch assembly damaged or worn. REFER to: Forward 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 . Direct 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 . Overdrive clutch damaged or worn. REFER to: Overdrive Clutch Assembly . |
|
| Only Gears 1, 2, 3, 4 Available Only Gears 5, 6, R Available |
Forward clutch assembly stuck on. REFER to: Forward Clutch Assembly . Forward clutch assembly does not apply. REFER to: Forward Clutch Assembly . |
|
| Only Gears 3, 5, and R Available Only Gears 1, 2, 4, 6 Available |
Direct clutch assembly stuck on. REFER to: Direct Clutch Assembly . Direct clutch assembly does not apply. REFER to: Direct Clutch Assembly . |
|
| Only Gears 2 and 6 Available Only Gears 1, 3, 4, 5, R Available |
Intermediate clutch assembly stuck on. REFER to: Intermediate Clutch Assembly . Intermediate clutch assembly does not apply. REFER to: Intermediate Clutch Assembly . |
|
| Only Gears 4, 5, 6 Available Only Gears 1, 2, 3, R Available |
Overdrive clutch assembly stuck on. REFER to: Overdrive Clutch Assembly . Overdrive clutch assembly does not apply. 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: External Controls . |
| No start/TR indicates R when the selector lever is in P. | Selector lever cable routed wrong, binding or damaged. REFER to: External Controls . | |
| Transmission Stuck in Drive | Selector lever cable routed wrong, binding or damaged. REFER to: External Controls . | |
| 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, REFER to: Noise, Vibration and Harshness (NVH) . | |
| Overheating | Transmission fluid cooling system damaged. REFER to: Transmission Cooling . | |