Automatic Transmission/Transaxle: Technical Service Bulletins

• Customer Interest
  • A/T - No Movement in Drive or 3rd Gear
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - Slips In Low/Reverse or No Reverse
  • A/T - Second Gear Vibration
  • A/T - Intermittent Second Gear Start in D2 When Cold
  • A/T - Intermittent or No TCC Apply, Possible DTC 26/39
  • A/T - Loss of Drive or Erratic Shifts
  • A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
  • A/T - THM 440-T4 Pan Bolt Leaks
  • A/T - 4T60 No or Slipping 3rd Gear/No Reverse/Drive
  • A/T - 4T60 Late Up-Shifts
  • A/T - Delayed Engagement In Drive/Reverse
  • A/T - Intermittent Delayed Engagement In Drive & Reverse
  • A/T - 4L60 Binding/Inoperative In Reverse
  • A/T - Harsh 1 to 2, 2 to 3, or 3 to 4 Upshifts
  • A/T - Engine Surge On Deceleration/No Upshift
  • Transaxle - Bearing Whine in 1ST, 2ND, and 3RD Gear
  • A/T - Leak Near 1-2 Servo Casting Slot
  • A/T - 4T60 Slips in Reverse/Reverse Band Distress
  • A/T - Leak At Side Cover to Channel Plate Gasket
  • A/T - Fluid Leak at The Converter Seal
• All Technical Service Bulletins
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • A/T - Fluid Oil Cooler Flow Test
  • A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
  • A/T - Slight Vehicle Movement In Park At Start Up
  • A/T - DEXRON(R)-VI Fluid Information
  • A/T - Water Or Coolant Contamination Information
  • A/T - No Movement in Drive or 3rd Gear
  • A/T - Grinding/Growling Noise in Park on Incline
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - Choosing the Right ATF
  • A/T - Math Part II
  • A/T - Twenty Steps To Successful Repairs
  • A/T - Math Formulas Part I
    • Overview
    • Shift Speed and Pressure
    • Speedometer Ratios
  • A/T - Front Bushing Wear
  • A/T - Slipping or No-Shift/Metal Sealing Rings
  • A/T - 125, 200C/200 4R, 700 R4 Hidden Residue Build Up
  • A/T - Rapid Converter Pump Bushing Wear
  • A/T - 4T60E 2nd Gear Starts, Shifts 1-3
  • A/T - Harsh Forward Engagement
  • A/T - Drive Axle and Wheel Lug Nut Torque Specifications
  • A/T - 4T60E Wiring Harness Updates
  • A/T - 4T60E Torrington Bearing Replaced
  • A/T - 4T60E New Design Pump Body And Rotor
  • A/T - THM Late or No Upshifts
  • A/T - 125/440 T4 Sprocket and Final Drive Identification
  • A/T - AXOD/E 44T4's and 125's Chain Stretch
  • A/T - How To Use A Pressure Gauge
  • A/T - 125C Uncontrolled Lock-Up, Kills Engine At Stop
  • A/T - Diagnosing Converter Lock-Up Problems
    • Overview
    • Test # 1 - Checking For 12 Volts at Terminal -A-
      • Regular Method
      • Quick Method
    • Test # 2 - Checking For 12 Volts Across Fuse
    • Test # 3 - Checking For 12 Volts Across Brake Switch
    • Test # 4 - Adjusting/Replacing the Brake Switch
    • Test # 5 - Checking Wires For Shorts and Opens
    • Test # 6 - Checking For Ground at Terminal -D-
      • Regular Method
      • Quick Method
    • Test # 7 - Grounding the -D- Wire
      • Regular Method
      • Quick Method
    • Test # 8 - Checking Cooler Line Pressure or Surge
    • Test # 9 - Checking the Solenoid
    • Test # 10 - Checking Electrical Switches on Trans.
    • Test # 11 - Checking Lockup Apply Valve
    • Test # 12 - Checking Signal Oil Circuit
    • Test # 13 - Checking the Computer
  • A/T - Engine Vacuum Testing
  • A/T - Torque Converter Identification
    • Overview
    • 298 mm Identification
    • 245 mm Identification
  • A/T - 3T40 Governor Failure Updated Part
  • A/T - Core Return Product Feedback Form
  • A/T - New Solenoid Testing Kit
  • A/T - 4T60E Cold Start Rattle Noise
  • A/T - Revised Scavenger Oil Scoop
  • A/T - Slips In Low/Reverse or No Reverse
  • A/T - Second Gear Vibration
  • A/T - Intermittent Second Gear Start in D2 When Cold
  • A/T - 3T40/4T60 Noise In Park On an Incline
  • A/T - Intermittent or No TCC Apply, Possible DTC 26/39
  • A/T - Harsh Shift Conditions Service Information
    • Overview
    • IA. Very Harsh Part Throttle 3-2 Shift At 20-40 MPH
    • IB. Harsh 3-2 and/or 4-2 Shifts
    • IC. Intermittent Harsh Part Throttle 3-2 Shift
    • II. Harsh 3-2 Shift **High Altitude Only**
    • III. Harsh 3-2 Shift **Low Altitude* Only**
    • IV Harsh 3-2 Shift Maneuver At 17-20 MPH
    • V. Harsh Upshifts - High Altitude Only
  • A/T - Fluid Level Checking Procedure
  • A/T - Loss of Drive or Erratic Shifts
  • A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
  • A/T - THM 440-T4 Pan Bolt Leaks
  • A/T - Transaxle Oil Filter Differences
  • A/T - Resistance Test For Shift Solenoids
  • A/T - 4T60 No or Slipping 3rd Gear/No Reverse/Drive
  • A/T - Oil Cooler Flushing Frequently Asked Questions
  • A/T - 4T60 Late Up-Shifts
  • A/T - Delayed Engagement In Drive/Reverse
  • A/T - Forward and Reverse Servo Part Changes
  • A/T - Intermittent Delayed Engagement In Drive & Reverse
  • A/T - 4T60 New Input and 3RD Clutch Piston Seal
  • A/T - New Clutch Plates
  • A/T - THM 3T40 New Roller Clutch
  • A/T - 3RD Clutch Plate Assembly Identification
  • A/T - 4th Clutch & Hydraulic Updates
  • A/T - DEXRON III Fluid Introduction
  • A/T - F-7/4T60/4T60-E - Drive Link Noise Diagnosis
  • A/T - 4L60 Binding/Inoperative In Reverse
  • A/T - Harsh 1 to 2, 2 to 3, or 3 to 4 Upshifts
  • A/T - New Thermo Element
  • A/T - Evaluating Peened Spacer Plates
  • A/T - Engine Surge On Deceleration/No Upshift
  • A/T - New 1-2 and Reverse Band Assemblies
  • Transaxle - Bearing Whine in 1ST, 2ND, and 3RD Gear
  • A/T - Leak Near 1-2 Servo Casting Slot
  • A/T - 4T60 Slips in Reverse/Reverse Band Distress
  • A/T - Leak At Side Cover to Channel Plate Gasket
  • A/T - Revised End Play Specification
  • A/T - Fluid Leak at The Converter Seal