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 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 . Damaged center support. Refer to: Low/Reverse 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 . 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 .
Harsh Stop/Start event		NOTE: TFT must be greater than 38 °C (100 °F) for the PCM to command the transmission fluid auxiliary pump on. Verify Fluid level. Refer to: Transmission Fluid Level Check . If fluid level is ok, Clear any DTC, then carry out prime procedure: Using a diagnostic scan tool, prime the transmission fluid auxiliary pump. Using a diagnostic scan tool, Key ON, Engine OFF, command TRANS_PMP_CMD to 80% for 30 seconds. Carry out a road test until there is a stop/start event. If the restart is harsh, repeat the Transmission Fluid Auxiliary Pump prime procedure. Continue road test and evaluate each stop/start event. Repeat prime procedure until three consecutive normal stop/start events are achieved. Clear DTCs.
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 . Low one-way clutch assembly damaged.
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 .
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: Transmission .
INSPECT the park pawl, park pawl actuator, and TR sensor for damage or wear. Refer to: Transmission .
INSPECT the final drive differential and final drive chain for damage. Refer to: Transmission .
Overheating		Transmission fluid cooling system damaged. Refer to: Selector Lever Cable Adjustment .