Symptoms - Automatic Transmission

Symptoms - Automatic Transmission

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

* Refer to Diagnostic Starting Point - Vehicle 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 Transmission General Description and Transmission Component and System Description Transmission Component and System Description.

Visual/Physical Inspection

Inspect the easily accessible or visible system components for obvious damage or conditions which could 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 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 Testing and Inspection

- Fluid Leak Diagnosis Fluid Leak Diagnosis

* Noise and Vibration Diagnosis

- Whine/Growl Noise That Changes with Vehicle Speed Whine/Growl Noise That Changes with Vehicle Speed

- Noise in Drive or Reverse Gear Noise in Drive or Reverse Gear

- Vibration Vibration

- Noise and Vibration Analysis Noise and Vibration Analysis

* Range Performance Diagnosis

- No Park or Drive No Park or Drive

- No Drive in All Ranges No Drive in All Ranges

- No Reverse Gear No Reverse Gear

- No Drive or Reverse Gear No Drive or Reverse Gear

* Shift Quality Feel Diagnosis

- Harsh Garage Shift Harsh Garage Shift

- Harsh, Soft, Delayed or Slipping Drive or Reverse Gear Harsh, Soft, Delayed or Slipping Drive or Reverse Gear

* Shift Pattern

- No Drive in All Ranges No Drive in All Ranges

- No Drive or Reverse Gear No Drive or Reverse Gear

- Stuck in Drive or Reverse Gear Stuck in Drive or Reverse Gear

* Symptoms Not Found or No Symptom Detected

- Transmission Fluid Level and Condition Check Testing and Inspection

- Line Pressure Check Line Pressure Check

- Road Test Road Test

- Clutch Plate Diagnosis Clutch Plate Diagnosis

- Engine Coolant/Water in Transmission Engine Coolant/Water in Transmission

- Case Porosity Repair Procedures

- Bushing and Mating Shaft Inspection Bushing and Mating Shaft Inspection