Transmission and Drivetrain: Technical Service Bulletins

• Customer Interest
  • A/T - 4T65E, Delayed Shifts/Flares/Extended Shifts
  • A/T - MIL/SES Lamp ON/Multiple A/T DTC's Set
  • A/T - 4T65E Poor Performance/Harsh Shifts/DTC's Set
  • Audio System - Static Noise From Speakers
  • Drivetrain - Moan/Groan Noise From Rear Differential
  • A/T - Grinding Noise/No Vehicle Movement in 'D' or 'R'
  • A/T - Difficulty Shifting From PARK to any DRIVE Range
  • A/T - 4T65E Harsh Shifts/Shudders/Slips/DTC's Set
  • A/T - 4T65-E Fluid Leaks From Reverse Servo Cover
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
  • A/T - No Movement in Drive or 3rd Gear
  • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
  • A/T - 4T65E Fluid Leaking From A/T Vent
  • A/T - 1-2 Shift Shudder at Light to Moderate Accel.
• By Symptom
  • Abnormal wear/deterioration
    • A/T - Grinding Noise/No Vehicle Movement in 'D' or 'R'
  • Customer Interest
    • A/T - 4T65E, Delayed Shifts/Flares/Extended Shifts
    • A/T - MIL/SES Lamp ON/Multiple A/T DTC's Set
    • A/T - 4T65E Poor Performance/Harsh Shifts/DTC's Set
    • Audio System - Static Noise From Speakers
    • Drivetrain - Moan/Groan Noise From Rear Differential
    • A/T - Grinding Noise/No Vehicle Movement in 'D' or 'R'
    • A/T - Difficulty Shifting From PARK to any DRIVE Range
    • A/T - 4T65E Harsh Shifts/Shudders/Slips/DTC's Set
    • A/T - 4T65-E Fluid Leaks From Reverse Servo Cover
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
    • A/T - No Movement in Drive or 3rd Gear
    • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
    • A/T - 4T65E Fluid Leaking From A/T Vent
    • A/T - 1-2 Shift Shudder at Light to Moderate Accel.
  • Difficult gear selection
    • A/T - Difficulty Shifting From PARK to any DRIVE Range
  • Driveability
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Erratic Shifting
    • A/T - 4T65E, Delayed Shifts/Flares/Extended Shifts
    • A/T - 4T65E Poor Performance/Harsh Shifts/DTC's Set
    • A/T - 4T65E Harsh Shifts/Shudders/Slips/DTC's Set
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • A/T - 1-2 Shift Shudder at Light to Moderate Accel.
  • Hard Shifting
    • A/T - MIL/SES Lamp ON/Multiple A/T DTC's Set
    • A/T - 4T65E Poor Performance/Harsh Shifts/DTC's Set
    • A/T - 4T65E Harsh Shifts/Shudders/Slips/DTC's Set
    • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
  • Inoperative
    • A/T - Grinding Noise/No Vehicle Movement in 'D' or 'R'
    • A/T - No Movement in Drive or 3rd Gear
  • Leaks
    • A/T - Diagnosing Fluid Leaks
    • A/T - 4T65-E Fluid Leaks From Reverse Servo Cover
    • A/T - 4T65E Fluid Leaking From A/T Vent
  • No shift/Incorrect gear engagement
    • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
  • Noise
    • Audio System - Static Noise From Speakers
    • Drivetrain - Moan/Groan Noise From Rear Differential
    • A/T - Grinding Noise/No Vehicle Movement in 'D' or 'R'
    • A/T - Grinding/Growling Noise in Park on Incline
  • Slipping
    • A/T - 4T65E, Delayed Shifts/Flares/Extended Shifts
    • A/T - 4T65E Poor Performance/Harsh Shifts/DTC's Set
    • A/T - 4T65E Harsh Shifts/Shudders/Slips/DTC's Set
    • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
  • Vibration
    • A/T - 4T65E Harsh Shifts/Shudders/Slips/DTC's Set
• All Technical Service Bulletins
  • Drivetrain - Information on Driveline Clunk Noise
  • Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
  • Vehicle - Engine And Sub-Systems Flushing Recommendations
  • M/T - Operating Characteristics Information
  • 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
  • Rear Differential/Transfer Case - Exchange Program
  • Transfer Case - Revised Fastener Torque Specification
  • A/T - 4L65E, 4L60E, 4L60, 200-4R Oil Pump Spring
  • A/T - Oil Cooler Flushing/Flow Check Procedures
  • A/T - Oil Cooler Flushing Frequently Asked Questions
  • A/T - 4T65E, Delayed Shifts/Flares/Extended Shifts
  • A/T - MIL/SES Lamp ON/Multiple A/T DTC's Set
  • A/T - 4T65E Poor Performance/Harsh Shifts/DTC's Set
  • Audio System - Static Noise From Speakers
  • Drivetrain - Moan/Groan Noise From Rear Differential
  • A/T - Service Procedure Changes
  • A/T - Core Return Product Feedback Form
  • A/T - Serial Number/Site Code Locations/Identification
  • A/T - Grinding Noise/No Vehicle Movement in 'D' or 'R'
  • A/T - Diagnosing Fluid Leaks
  • A/T - 4T65-E Updated Internal Components
  • A/T - Shift Lock Control Feature Function
  • A/T - Difficulty Shifting From PARK to any DRIVE Range
  • A/T - 4T65E Harsh Shifts/Shudders/Slips/DTC's Set
  • A/T - Pressure Control Solenoid Replacement
  • A/T - 4T65-E Final Drive Assembly Precaution
  • A/T - 4T65-E Spacer Plate/Gasket Service
  • A/T - 4T65-E Fluid Leaks From Reverse Servo Cover
  • Drivetrain - New Transfer Case Output Bearing Tool
  • Drivetrain - Front Drive Axle Lubrication Update
  • M/T - Hydraulic Clutch Bleeding Procedure Improvement
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - Harsh Shifts/Slipping/DTCs P0741/P0742/P0757/P842
  • A/T - Torque Converter Replacement Information
  • A/T - No Movement in Drive or 3rd Gear
  • A/T - Grinding/Growling Noise in Park on Incline
  • A/T - 4L60/65E, No Reverse/2nd or 4th Gear
  • A/T - Gear Engagement Time Information
  • A/T - 4T65E Fluid Leaking From A/T Vent
  • A/T - Revised Converter Check Valve/Cooler Line Fitting
  • A/T Control - DTC P0756 Diagnostic Tips
  • A/T - Goodwrench Transmission Replacement
  • A/T - Water Or Coolant Contamination Information
  • A/T - DEXRON(R)-VI Fluid Information
  • A/T - 1-2 Shift Shudder at Light to Moderate Accel.