Automatic Transmission, VT25-E (Troubleshooting)

• Troubleshooting
  • Symptoms - Automatic Transmission
  • Clearing Transmission Diagnostic Trouble Codes
  • Transmission Fluid Checking Procedure
  • Line Pressure Check Procedure
    • Tools Required
  • Road Test Procedure
    • Electrical/Garage Shift Procedure
    • Road Test Procedure
  • Torque Converter Diagnosis Procedure
    • Notes
    • Torque Converter Stator
    • Poor Acceleration at Low Speed
    • Poor Acceleration at High Speed
    • Noise
    • Torque Converter Clutch Shudder
    • If Shudder Occurs After TCC has Applied
    • Torque Converter Evaluation and Diagnosis
  • Flexplate/Torque Converter Vibration Test
    • Isolating Vibration
    • Indexing Torque Converter
  • Noise and Vibration Analysis
  • Clutch Plate Diagnosis
    • Composition Side of Clutch Plates
    • Steel Side of Clutch Plates
    • Causes of Burned Clutch Plates
  • Engine Coolant/Water in Transmission
  • Fluid Leak Diagnosis
    • General Method
    • Powder Method
    • Dye and Black Light Method
    • Find the Cause of the Leak
    • Possible Points of Fluid Leaks
  • Case Porosity Repair
  • Transmission Overheats
  • Line Pressure Instability
  • Low Line Pressure
  • High Line Pressure
  • Automatic Transmission Fluid Leaks
  • Final Drive Noise or Hum Noise
  • Whine/Growl Noise That Changes with Vehicle Speed
  • Noisy in Reverse Only
  • Reattaching Noise
  • Whine Noise Varying with RPM or Fluid Pressure
  • Gravel or Grating Noise
  • Moaning Noise
  • Transmission Clunk on Acceleration or Deceleration
  • Rattle Noise
  • Vibration
  • No Drive in Forward Ranges
  • Slips in Drive
  • No Reverse
  • Slips in Reverse
  • No Forward and Reverse
  • No Low or Reverse
  • No Park
  • Transmission Does Not Shift Out of Park
  • Stays in Drive
  • Stays in Low
  • Stays in Intermediate
  • Stays in Reverse
  • Range Selector Displays Incorrect Range
  • Harsh Garage Shift
  • Poor Driveability - Poor or No Ratio Control
  • No Torque Converter Clutch (TCC) Apply/TCC Slipping/Soft TCC Apply
  • Torque Converter Clutch (TCC) Stuck On
  • Harsh Torque Converter Clutch (TCC) Apply
  • Torque Converter Clutch (TCC) Slipping