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 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 - 2-3 Slip or Flare/Delayed 2-3 Upshifts
  • A/T - Slips in Reverse/No Reverse
  • A/T - Intermittent Rattle/Clicking, Lo-Rev Clutch
  • A/T - Intermittent TCC, DTC 62/26 (Gear Switches) Set
  • A/T - Delayed `R' to `D' In Cold Operating Conditions
  • A/T - No Second Gear, Inspect/Install Servo Cover & 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
  • 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 - Checking Pressure Switches For Leaks
  • A/T - No Upshift/Governor Contamination
  • A/T - Front Bushing Wear
  • A/T - Slipping or No-Shift/Metal Sealing Rings
  • A/T - Methods to Check for Restricted Exhaust
  • A/T - 125C, 440T4 No Upshift
  • A/T - Governor Pressure Switches
  • A/T - 125, 200C/200 4R, 700 R4 Hidden Residue Build Up
  • A/T - Converter Clutch Shudder
  • A/T - Rapid Converter Pump Bushing Wear
  • A/T - No Converter Clutch Apply When Unit Is Hot
  • A/T - Harsh Forward Engagement
  • A/T - Drive Axle and Wheel Lug Nut Torque Specifications
  • 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 - THM 125C Model Codes
  • A/T - Engine Vacuum Testing
  • A/T - Torque Converter Identification
    • Overview
    • 298 mm Identification
    • 245 mm Identification
  • A/T - 3T40/THM 125C Forward Drum Design Changes
  • A/T - THM 125/125C, 3T40 Lo-Reverse Clutch Rattle
  • A/T - 3T40/THM 125C Intermittent or No TCC Apply
  • A/T - 3T40, 125/125C New Spring Dowel Case Cover Pins
  • A/T - Core Return Product Feedback Form
  • A/T - Service Replacement Model Update
  • A/T - Hydra-Matic Designation System
  • A/T - Production Changes 125/125C, Manual Updates
  • A/T - New Bottom Pan and Controlled Compression Gasket
  • A/T - Transaxle Oil Filter Differences
  • 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 - New Oil Pump Rotor Thickness
  • A/T - 2-3 Slip or Flare/Delayed 2-3 Upshifts
  • A/T - Inoperative Lo-Reverse Clutch Diagnosis
  • A/T - Slips in Reverse/No Reverse
  • A/T - Intermittent Rattle/Clicking, Lo-Rev Clutch
  • A/T - Revised 4TH Clutch Reaction Plates
  • Direct Clutch Housing - Revised
  • A/T - Revised Forward Clutch Piston Seals
  • A/T - New Roller Clutch
  • A/T - Direct & Forward Clutch Fiber Plates
  • A/T - Revised Direct Clutch Piston Center Seal R&R
  • A/T - DEXRON III Fluid Introduction
  • A/T - Intermittent TCC, DTC 62/26 (Gear Switches) Set
  • A/T - Intermittent or No Torque Converter Clutch Apply
  • A/T - Delayed `R' to `D' In Cold Operating Conditions
  • A/T - New 1-2 and Reverse Bands
  • A/T - No Second Gear, Inspect/Install Servo Cover & Seal
  • A/T - 3T40 New Side Cover and Bottom Pan Gasket
  • A/T - New Spring Dowel Case Cover Pins
  • Drivetrain - New Seal Protector for Drive Axle R&R
  • A/T - Revised End Play Specification
  • A/T - Updated R&R Pinion Gear Washers & Sun Gear