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 DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND PINPOINT TESTS - 2.0L ECOBOOST (177KW/240PS) - MI4 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 .
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 .
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		Verify Fluid level. REFER to: Transmission Fluid Level Check . If fluid level is ok, Clear any DTC, then carry out prime procedure: 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. 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 .
2-3 Shift Hesitation After A Cold Soak		Verify Fluid level. REFER to: Transmission Fluid Level Check . If fluid level is okay, these hesitation events should be deemed a normal characteristic and do not cause any abnormal wear or durability concern. The hydraulic circuit can partially drain back during an extended engine off condition and could take a couple applications (2-3 shifts) to work any air out of the hydraulic circuit. No further work on the transmission should take place for that condition.
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: 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 .
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 - 6-Speed Automatic Transmission - 6F35 .
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: Transmission Cooling .