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Symptoms - Automatic Transmission

Symptoms - Automatic Transmission


Note

Use the symptom tables only if the following conditions are met:

• Refer to Diagnostic Starting Point - Vehicle .

• There are no DTCs set.

• The control modules can communicate via the serial data link.

• Review the system operation in order to familiarize yourself with the system functions. Refer to Transmission General Description and Transmission Component and System Description .


Visual/Physical Inspection

Inspect for easily accessible or visible system components for obvious damage or conditions which may cause the symptom.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:


• Fluid Diagnosis

- Transmission Fluid Level and Condition Check

- Fluid Pressure High or Low

- Automatic Transmission Fluid Leaks

- Fluid Leak Diagnosis

• Noise and Vibration Diagnosis

- Whine/Growl Noise

- Noise and Vibration Analysis

- Torque Converter Diagnosis

• Range Performance Diagnosis

- No Park

- No Drive in All Ranges

- No Reverse Gear

• Shift Quality Feel Diagnosis

- Harsh Garage Shift

- Harsh or Late First, Second, Third, and Fourth Shift

- Harsh First and Reverse Shift

- Harsh or Late Second and Sixth Shift

- Harsh or Late Third, Fifth, and Reverse Shift

- Harsh Fourth, Fifth, and Sixth Shift

• Shift Pattern

- No First and Reverse Gears

- No First, Second, Third, and Fourth Gear

- No Second and Sixth Gear

- No Fourth, Fifth, and Sixth Gear

- No Third, Fifth, and Reverse Gear

• Torque Converter Diagnosis

- Torque Converter Diagnosis

- No Torque Converter Clutch Apply

- No Torque Converter Clutch Release

• Symptom Not Found or No Symptom Detected

- Transmission Fluid Level and Condition Check

- Road Test

- Line Pressure Check