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 - Harsh 3-2 Downshift at High Altitudes
  • A/T - Intermittent Loss of Drive
  • A/T - Drive Link Noise in PARK/NEUTRAL Diagnosis
  • A/T Oil Pan Valve Body Cover - Leaks
  • A/T Pan Bolt - Leaks
  • A/T - Engine Flare or Slip On Turns
  • A/T - Flare or Slips On Turns
  • Engine - Stalls on Drive/Reverse Engagement
  • A/T - TCC Engages In 2nd Gear
  • A/T - Harsh 3-2 Downshifts, Diagnosis & Repair
    • Overview
    • Very Harsh Part Throttle 3-2 Shift At 20-40 MPH:
    • Harsh 3-2 and/or 4-2 Shifts:
    • Intermittent Harsh Part Throttle 3-2 Shift:
    • Harsh 3-2 Shift **High Altitude Only**
    • Harsh 3-2 Shift **Low Altitude* Only**:
    • Harsh 3-2 Shift Maneuver At 17-20 MPH:
    • Harsh 3-2 Coastdown Bump 3.8L or 4.5L At 15-22 MPH:
    • Harsh Upshifts - High Altitude Only:
  • A/T - Harsh Upshift/3-2 Shift Conditions
    • Overview
    • Harsh Part Throttle 3-2 Shift Conditions Information
    • Harsh 3-2 Shift - High & Low Altitudes Information
    • Harsh 3-2 Shift Maneuver & Coastdown Bump 3.8L Information
    • Harsh Upshifts - High Altitude Only Information
  • A/T - Intermittent Delayed Upshifts
  • A/T - Long or Delayed 2-3 Shift
  • A/T - Double Bump, Harsh Engagement, Shudder P to N or R
  • A/T - Delayed Neutral to Drive Engagement
  • A/T - THM 440-T4 1-2 Shift Shudder
  • A/T - Harsh Engagement or Engagement Shudder
  • A/T - Intermittent/Complete Loss of Drive and Reverse
  • A/T -THM 440-T4 Loss of Drive and/or Reverse
  • A/T - Soft, Slipping or No 1-2 Shift
  • A/T - Summary of Shudder Diagnosis
  • A/T - THM 440-T4 Erratic Shifts/No Upshifts
  • A/T - Harsh Engage, Bump, or Shudder, Shifting to REV
  • A/T - Intermittent No Reverse or Locks In Reverse
  • A/T - Delayed Forward Engagement, Slips, Bump or Shudder
  • A/T - THM 440-T4 Harsh 1-2 Shift
  • A/T - No 3RD Gear, New Thrust Bearing
• 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 - Drive Axle and Wheel Lug Nut Torque Specifications
  • A/T - How To Use A Pressure Gauge
  • A/T - Engine Vacuum Testing
  • A/T - Core Return Product Feedback Form
  • A/T - Harsh 3-2 Downshift at High Altitudes
  • A/T - Service Replacement Model Update
  • A/T - Service Parts & Unit Repair Information
  • A/T - Service Replacement
    • Overview
    • General Guidelines - Replacement or Overhaul
    • Transaxle Fluid Cooler Flushing & Install Case Vent Assembly
    • Srta Processing Procedures
    • THM 125C Transaxle Identification Information
  • A/T - New Parts and Service Information
  • A/T - New Input Carrier Thrust Washers
  • A/T - Intermittent Loss of Drive
  • A/T - Drive Link Noise in PARK/NEUTRAL Diagnosis
  • A/T - On Car Service
    • Overview
    • Preliminary Check Procedures
    • Diagnostic Information - Based On Condition
  • A/T - Replacement Model Update
  • A/T - Repair Procedures & Replacement Transaxles
    • Overview
    • 1985-1/2 THM 440-T4 Automatic Transaxle
      • Overview
      • Valve Body Illustrations
  • A/T - New Bottom Pan and Controlled Compression Gasket
  • A/T Oil Pan Valve Body Cover - Leaks
  • A/T Pan Bolt - Leaks
  • A/T - Engine Flare or Slip On Turns
  • A/T - Flare or Slips On Turns
  • A/T - Transaxle Oil Filter Differences
  • Engine - Stalls on Drive/Reverse Engagement
  • A/T - TCC Engages In 2nd Gear
  • A/T - Harsh 3-2 Downshifts, Diagnosis & Repair
    • Overview
    • Very Harsh Part Throttle 3-2 Shift At 20-40 MPH:
    • Harsh 3-2 and/or 4-2 Shifts:
    • Intermittent Harsh Part Throttle 3-2 Shift:
    • Harsh 3-2 Shift **High Altitude Only**
    • Harsh 3-2 Shift **Low Altitude* Only**:
    • Harsh 3-2 Shift Maneuver At 17-20 MPH:
    • Harsh 3-2 Coastdown Bump 3.8L or 4.5L At 15-22 MPH:
    • Harsh Upshifts - High Altitude Only:
  • A/T - Harsh Upshift/3-2 Shift Conditions
    • Overview
    • Harsh Part Throttle 3-2 Shift Conditions Information
    • Harsh 3-2 Shift - High & Low Altitudes Information
    • Harsh 3-2 Shift Maneuver & Coastdown Bump 3.8L Information
    • Harsh Upshifts - High Altitude Only Information
  • Oil Pump Rotor and Slide - Updated Service Part Numbers
  • A/T - New Torque Converter End Play Measurement & Tool
  • A/T Torque Converter - Inoperative/Failure Diagnosis
  • A/T - Intermittent Delayed Upshifts
  • A/T - Long or Delayed 2-3 Shift
  • A/T - Inoperative Lo-Reverse Clutch Diagnosis
  • A/T - Double Bump, Harsh Engagement, Shudder P to N or R
  • A/T - New 2nd Clutch Piston Seal
  • A/T - Revised 4TH Clutch Reaction Plates
  • A/T - Delayed Neutral to Drive Engagement
  • A/T - Revised Forward Clutch Piston Seals
  • A/T - New Input Clutch and 3rd Clutch Seal Installers
  • A/T - New Input and 3RD Clutch Inner Piston Seal
  • A/T - THM 440-T4 1-2 Shift Shudder
  • A/T - Harsh Engagement or Engagement Shudder
  • A/T - THM 125C New Forward Clutch Assembly
  • A/T - Intermittent/Complete Loss of Drive and Reverse
  • A/T -THM 440-T4 Loss of Drive and/or Reverse
  • A/T - Soft, Slipping or No 1-2 Shift
  • A/T - New Forward and Direct Clutch
  • A/T - DEXRON III Fluid Introduction
  • A/T - Summary of Shudder Diagnosis
  • A/T - Supplemental Diagnosis
  • A/T - New Chain Scavenging Scoop and Sprocket Support
  • A/T - THM 440-T4 Erratic Shifts/No Upshifts
  • A/T - New 1-2 and Reverse Bands
  • A/T - Harsh Engage, Bump, or Shudder, Shifting to REV
  • A/T - Revised Style 1-2 Band Assembly
  • A/T - Intermittent No Reverse or Locks In Reverse
  • A/T - Delayed Forward Engagement, Slips, Bump or Shudder
  • A/T - Case Cover Oil Slot
  • A/T - THM 440-T4 Harsh 1-2 Shift
  • A/T - 3T40 New Side Cover and Bottom Pan Gasket
  • A/T - Revised End Play Specification
  • A/T - No 3RD Gear, New Thrust Bearing
  • A/T - Updated R&R Pinion Gear Washers & Sun Gear
  • A/T - 4L60, Revised Sprag/Forward Clutch Hub