Symptoms - Automatic Transmission

Diagnostic Category	Diagnostic Information
DEFINITION: The following table consists of seven diagnostic categories that are located in the left-hand column. Using this column, choose the appropriate category based on the operating conditions of the vehicle or transmission. After selecting a category, use the right-hand column to locate the specific symptom diagnostic information.
Fluid Diagnosis: This category contains the following topics: Fluid condition - appearance, contaminants, smell, overheating Line pressure - high or low Fluid leaks	Refer to Transmission Fluid Checking Procedure . Refer to Line Pressure Check Procedure . Refer to Fluid Leak Diagnosis .
Noise and Vibration Diagnosis: This category contains the following topics: Noise - drive gear, final drive, whine, growl, rattle, buzz, popping Vibration	Refer to Flexplate/Torque Converter Vibration Test . Refer to Symptoms - Rear Differential Carrier .
Range Performance Diagnosis: This category contains the following topics: No Park No Reverse No Drive No engine braking No gear selection	Refer to Vehicle does Not Hold in P Range . Refer to Unable to Run in All Ranges . Refer to No Engine Braking in 2 or L Range . Refer to Shift Select Cable Replacement .
Shift Quality/Feel Diagnosis: This category contains the following topic: Harsh shifts	Refer to Harsh Engagement into any Drive Range .
Shift Pattern: This category contains the following topics: One forward gear only Slipping	Refer to Fluid Discolored or Smells Burnt . Refer to Harsh Downshift .
Torque Converter Diagnosis: This category contains the following topic Torque Converter Diagnosis	Refer to Flexplate/Torque Converter Vibration Test .
If no symptoms are found	Refer to Transmission Fluid Checking Procedure . Refer to Road Test Procedure . Refer to Line Pressure Check Procedure .