Section 1 (Automatic Transmission - 4T65-E - Symptom Troubleshooting & Diagnosis)

• Symptoms - Automatic Transmission
• Range Selector Displays Incorrect Range
  • Circuit Description
  • Test Description
• Transmission Fluid Level and Condition Check
• Line Pressure Check
  • Special Tools
  • Check
• Road Test
  • Notes
  • Electrical Function Check
  • Upshift Control and Torque Converter Clutch (TCC) Apply
  • Part Throttle Detent Downshift
  • Full Throttle Detent Downshift
  • Manual Downshifts
  • Coasting Downshifts
  • Manual Gear Range Selection
• Torque Converter Diagnosis
  • 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
• Torque Converter Replacement Guide
• Flex Plate/Torque Converter Vibration Test
  • Isolating Vibration
  • Indexing Torque Converter
• Noise and Vibration Analysis
• Clutch Plate Diagnosis
  • Composition Plates
  • Steel 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
• Shift Solenoid Leak Test
  • Special Tools
• Transmission Fluid Cooler Flushing and Flow Test (J-35944-A)
  • Notes
  • Preparation
  • Back Flush
  • Forward Flush
  • Flow Test
  • Clean-up
• Transmission Fluid Cooler Flushing and Flow Test (J-45096)
  • Notes
  • Cooler Flow Check and Flushing Steps
  • Machine Set-up
  • Determine Minimum Flow Rate
  • Back Flush Procedure
  • Forward Flush
  • Flow Test
  • Code Recording Procedure
  • Clean-up
• Bushing and Mating Shaft Inspection
• Automatic Transmission Fluid Leaks
• Incorrect Line Pressure
• Delayed Park to Reverse/Drive Engagement
• Harsh Park to Reverse/Drive Engagement
• Slips in Drive or No Drive
• Slips in Reverse or No Reverse
• Locked Up in Drive/Reverse
• No Park Range
• Harsh or Soft 1-2 Shift Feel
• Harsh or Soft 2-3/3-2 Shift Feel
• Harsh or Soft 3-4/4-3 Shift Feel
• High or Low Upshift or Downshift Speed
• First and Second Gear Only - 2-3 Solenoid Stuck On
• First and Fourth Gear Only - 1-2 Solenoid Stuck On
• Second and Third Gear Only (1-2 Solenoid Stuck Off)
• Third and Fourth Gear Only (2-3 Solenoid Stuck Off)
• First Gear Only
• Second Gear Only
• Third Gear Only
• Fourth Gear Only
• Slipping or No First Gear
• Slipping or No Second Gear
• Slipping or No Third Gear
• Slipping or No Fourth Gear
• No Engine Braking in Manual Second or Low Range
• Whine Noise Varying with RPM or Fluid Pressure
• Popping Noise
• Buzz Noise or High Frequency Rattle Sound
• Whine/Growl Noise That Changes with Vehicle Speed
• Final Drive Noise or Hum Noise
• Noise in First, Second, Third, or Fourth
• Noise in Random Ranges
• Abnormal Noise in Park or Neutral Range
• Converter Clutch Stuck On in All Gears
• Converter Clutch Stuck On in Second, Third and Fourth Gear
• Harsh Torque Converter Clutch Apply or Release
• Converter Clutch Apply Rough, Slips, or Shudders
• No Torque Converter Clutch Apply