Transmission and Drivetrain: Technical Service Bulletins

• Recalls
  • Generals
    • Campaign - A/T Noisy, Poor Operation, Parts Supplement
    • Campaign - A/T Noisy, Poor Operation
      • Overview
      • Vehicles Involved, Dealer Responsibility & Owner Notification
      • Service Procedure
      • Service Parts Information
      • Warranty Information and Identification Label
      • Owner Letter
    • Campaign - Axle Shaft Inspection and/or Replacement
      • Overview
      • Dealer, Owner and Service Information
      • Inspection and Replacement Procedure
      • Parts and Warranty Information
      • Campaign Identification Label
  • Safety
    • Recall 93V016000: A/T Venting fluid
    • Recall - Automatic Transmission Vent
      • Overview
      • Defect and Vehicles Involved
      • Owner, Dealer and Parts Information
      • Service Procedure
      • Identification Label and Claim Information
      • Owner Letter
      • Owner's Manual Information
      • Recap Involved Units
• Customer Interest
  • Brake Pads - Early Wear and Tire Wear
  • A/T - Low Power/Lack of Performance With 4L80E
  • A/T - Loss of Drive Gears in All Ranges
  • Torque Converter - Squeaks
  • A/T - Shudder Upon Apply/Release of TCC
  • Clutch Hydraulic System - Fluid Leaks
  • Clutch Pedal - Pop or Scrape Noise When Depressed
  • PROM - Lack of Power/Transmission Hot Mode
  • Radio - Buzzing Noise in AM Band With Engine Running
  • A/T - Intermittent DTC 87/High Ratio Error
  • Locking Rear Axle - Chatters onTurns
  • A/T - Loss of 3RD/Direct Clutch Distress or Slips In `R'
  • A/T - Buzzing Noise at Idle
  • A/T - Torque Converter Clutch Shutter
  • A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
  • A/T - No Reverse, New Rear Band
  • A/T - Harsh 1-2 Upshift
  • M/T - Shift Lever Shake/Noise in 2ND Gear
  • M/T - Shift Lever Stuck/Blocked Out of OD or REV
  • Drivetrain - Rear Axle Pinion Seal Leak
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - No Movement in Drive or 3rd Gear
• By Symptom
  • Abnormal wear/deterioration
    • Brake Pads - Early Wear and Tire Wear
    • A/T - Fluid Leaks Through Connector
    • Warranty - Policy Coverage Extention
    • A/T - 4L80E High Line Pressure/Broken Drum Cracked Case
    • A/T - Front Bushing Wear
  • Chattering
    • A/T - Shudder Upon Apply/Release of TCC
  • Customer Interest
    • Brake Pads - Early Wear and Tire Wear
    • A/T - Low Power/Lack of Performance With 4L80E
    • A/T - Loss of Drive Gears in All Ranges
    • Torque Converter - Squeaks
    • A/T - Shudder Upon Apply/Release of TCC
    • Clutch Hydraulic System - Fluid Leaks
    • Clutch Pedal - Pop or Scrape Noise When Depressed
    • PROM - Lack of Power/Transmission Hot Mode
    • Radio - Buzzing Noise in AM Band With Engine Running
    • A/T - Intermittent DTC 87/High Ratio Error
    • Locking Rear Axle - Chatters onTurns
    • A/T - Loss of 3RD/Direct Clutch Distress or Slips In `R'
    • A/T - Buzzing Noise at Idle
    • A/T - Torque Converter Clutch Shutter
    • A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
    • A/T - No Reverse, New Rear Band
    • A/T - Harsh 1-2 Upshift
    • M/T - Shift Lever Shake/Noise in 2ND Gear
    • M/T - Shift Lever Stuck/Blocked Out of OD or REV
    • Drivetrain - Rear Axle Pinion Seal Leak
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • A/T - No Movement in Drive or 3rd Gear
  • Driveability
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Erratic Shifting
    • A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • False instrument warning light/gauges
    • A/T - Intermittent DTC 87/High Ratio Error
  • Hard Shifting
    • Engine Controls - Service Engine Soon Light, DTC 22-TPS
    • A/T - Harsh 1-2 Upshift
  • Hard shifting/Stiff clutch
    • M/T - Shift Lever Stuck/Blocked Out of OD or REV
  • Inoperative
    • A/T - Loss of Drive in All Ranges
    • A/T - Loss of Drive Gears in All Ranges
    • Campaign - A/T Noisy, Poor Operation
      • Overview
      • Vehicles Involved, Dealer Responsibility & Owner Notification
      • Service Procedure
      • Service Parts Information
      • Warranty Information and Identification Label
      • Owner Letter
    • Warranty - Policy Coverage Extention
    • A/T - 4L80E High Line Pressure/Broken Drum Cracked Case
    • A/T - No Movement in Drive or 3rd Gear
  • Leaks
    • Clutch Hydraulic System - Fluid Leaks
    • A/T - Fluid Leaks Through Connector
    • A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
    • Drivetrain - Rear Axle Pinion Seal Leak
  • No shift/Incorrect gear engagement
    • PROM - Lack of Power/Transmission Hot Mode
    • A/T - No Shift/Scanner Reports Shifting
    • A/T - 4L80E Neutral Feel On 3-4 Upshift
    • A/T - Slipping or No-Shift/Metal Sealing Rings
    • A/T - No Reverse, New Rear Band
  • Noise
    • Torque Converter - Squeaks
    • Clutch Pedal - Pop or Scrape Noise When Depressed
    • Radio - Buzzing Noise in AM Band With Engine Running
    • Locking Rear Axle - Chatters onTurns
    • A/T - Click/Whine In Third/Fourth Gear
    • A/T - Buzzing Noise at Idle
    • Campaign - A/T Noisy, Poor Operation
      • Overview
      • Vehicles Involved, Dealer Responsibility & Owner Notification
      • Service Procedure
      • Service Parts Information
      • Warranty Information and Identification Label
      • Owner Letter
    • M/T - Shift Lever Shake/Noise in 2ND Gear
  • Poor performance
    • PROM - Lack of Power/Transmission Hot Mode
  • Pops out of gear
    • M/T - Shift Lever Stuck/Blocked Out of OD or REV
  • Recalls
    • Campaign - A/T Noisy, Poor Operation, Parts Supplement
    • Campaign - A/T Noisy, Poor Operation
      • Overview
      • Vehicles Involved, Dealer Responsibility & Owner Notification
      • Service Procedure
      • Service Parts Information
      • Warranty Information and Identification Label
      • Owner Letter
    • Recall 93V016000: A/T Venting fluid
    • Recall - Automatic Transmission Vent
      • Overview
      • Defect and Vehicles Involved
      • Owner, Dealer and Parts Information
      • Service Procedure
      • Identification Label and Claim Information
      • Owner Letter
      • Owner's Manual Information
      • Recap Involved Units
    • Campaign - Axle Shaft Inspection and/or Replacement
      • Overview
      • Dealer, Owner and Service Information
      • Inspection and Replacement Procedure
      • Parts and Warranty Information
      • Campaign Identification Label
  • Slipping
    • A/T - 4L80E Neutral Feel On 3-4 Upshift
    • A/T - Intermittent Downshift, Slip or Busy/Cycling TCC
  • Sticking/Binding
    • A/T - 4L80E Binds In Manual Low1
    • A/T - Torque Converter Clutch Shutter
  • Vibration
    • Locking Rear Axle - Chatters onTurns
  • Won't disengage
    • A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
• 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
  • ACDelco(R) Remanufactured Transmissions - Program Update
    • Overview
    • Warranty Coverage
    • New Warranty Registration
    • Warranty Claim Submission Procedures
  • Engine Controls - Error In Tech 1 Software Cartridge
  • Brake Pads - Early Wear and Tire Wear
  • Engine Controls - Service Engine Soon Light, DTC 22-TPS
  • A/T - Intermittent Downshift/Slip/Cycling Diagnosis
  • Rear Axle - Ring & Pinion Assembly Replacement Info
  • Differential Pinion Shaft Lock Screw - Service
  • Differential Pinion Shaft Locking Screw - Revised
  • Differential - Governor Removal Tool Revision
  • A/T - New Pump Removal Tool
  • A/T - Loss of Drive in All Ranges
  • A/T - Cooler Replacement/Flushing
  • A/T - External Oil Cooler Kits
  • A/T - Oil Cooler Flushing Frequently Asked Questions
  • A/T - New Solenoid Assemblies, More Durable & New Colors
  • A/T - Shift Solenoid Update
  • A/T - Low Power/Lack of Performance With 4L80E
  • A/T - Loss of Drive Gears in All Ranges
  • Torque Converter - Squeaks
  • A/T - Shudder Upon Apply/Release of TCC
  • M/T - Clutch Pilot Bushing and Bearings
  • Clutch Hydraulic System - Fluid Leaks
  • Clutch Pedal - Pop or Scrape Noise When Depressed
  • Slip Yoke/U-Joint - Replacement and Servicing
  • PROM - Lack of Power/Transmission Hot Mode
  • Radio - Buzzing Noise in AM Band With Engine Running
  • A/T - Intermittent DTC 87/High Ratio Error
  • Locking Rear Axle - Chatters onTurns
  • A/T - Click/Whine In Third/Fourth Gear
  • A/T - Loss of 3RD/Direct Clutch Distress or Slips In `R'
  • A/T - Replacement Program
  • Campaign - A/T Noisy, Poor Operation, Parts Supplement
  • A/T - Buzzing Noise at Idle
  • A/T - Fluid Leaks Through Connector
  • Campaign - A/T Noisy, Poor Operation
    • Overview
    • Vehicles Involved, Dealer Responsibility & Owner Notification
    • Service Procedure
    • Service Parts Information
    • Warranty Information and Identification Label
    • Owner Letter
  • A/T - Interchangeability Information/Precaution
  • A/T - Service Transmission Replacement
  • Warranty - Policy Coverage Extention
  • Goodwrench Transmissions - Applications
  • Recall 93V016000: A/T Venting fluid
  • A/T - New Solenoid Testing Kit
  • A/T - Service Procedure Changes
  • A/T - Core Return Product Feedback Form
  • A/T - Dexron IIE Preferred Fluid for All Hydra-matic
  • A/T - Torque Converter Identification
    • Overview
    • 298 mm Identification
    • 245 mm Identification
  • A/T - Engine Vacuum Testing
  • A/T - How To Use A Pressure Gauge
  • A/T - Intermittent Electrical Problems
  • A/T - 4L80E Multiple/Intermittent Trouble Codes
  • A/T - 4L80E No Upshift
  • A/T - 4L80E Binds In Manual Low1
  • A/T - 4L80E No or Low Line Rise
  • A/T - Failsafe Modes
  • A/T - No Line Pressure/Uncontrollable High Pressure
  • A/T - 4L80E High Line Pressure/Broken Drum Cracked Case
  • A/T - No Shift/Scanner Reports Shifting
  • A/T - 4L80E Neutral Feel On 3-4 Upshift
  • A/T - 4L60-E/4L8O-E PCM Application Information
  • A/T - Rapid Converter Pump Bushing Wear
  • A/T - Slipping or No-Shift/Metal Sealing Rings
  • A/T - Front Bushing Wear
  • A/T - Math Formulas Part I
    • Overview
    • Shift Speed and Pressure
    • Speedometer Ratios
  • A/T - Twenty Steps To Successful Repairs
  • A/T - Math Part II
  • A/T - Choosing the Right ATF
  • M/T - Diagnostic & Exchange Procedure
  • A/T - New ATF Dexron IIe Information
  • A/T - New Fluid Level Indicators & Fluid Check Procedure
  • A/T - DEXRON III Fluid Introduction
  • A/T - Torque Converter Clutch Shutter
  • A/T - Intermittent Downshift, Slip or Busy/Cycling TCC
  • A/T - No Upshift/Stuck in 1ST/No Codes/Exterior Leaks
  • A/T - Holley Variable Pressure Control Solenoid
  • A/T - Servicing Wiring Harness On Valve Body
  • A/T - Valve Body R&R, Avoid Breaking Wire Connectors
  • A/T - High Line Pressure Instability
  • Drivetrain - Recommended Axle Lubricant
  • Drivetrain - Maintenance On Drive Axle Service
  • Drivetrain - Rear Axle Lubricant Compatibility & Usage
  • A/T - No Reverse, New Rear Band
  • A/T - Harsh 1-2 Upshift
  • A/T - 1-2 Accumulator Piston/Outer Spring Replacement
  • Recall - Automatic Transmission Vent
    • Overview
    • Defect and Vehicles Involved
    • Owner, Dealer and Parts Information
    • Service Procedure
    • Identification Label and Claim Information
    • Owner Letter
    • Owner's Manual Information
    • Recap Involved Units
  • A/T - New Center Support Bolt Service Package
  • A/T - Cracked Case Diagnosis
  • M/T - Shift Lever Shake/Noise in 2ND Gear
  • M/T - Shift Lever Stuck/Blocked Out of OD or REV
  • M/T - Correct Transmission Fluid Usage
  • Campaign - Axle Shaft Inspection and/or Replacement
    • Overview
    • Dealer, Owner and Service Information
    • Inspection and Replacement Procedure
    • Parts and Warranty Information
    • Campaign Identification Label
  • A/T - Reusable Bottom Pan Seal Inspection
  • Drivetrain - Rear Axle Pinion Seal Leak
  • M/T - Hydraulic Clutch Bleeding Procedure Improvement
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - Torque Converter Replacement Information
  • A/T - No Movement in Drive or 3rd Gear
  • A/T Control - DTC P0756 Diagnostic Tips
  • A/T - Water Or Coolant Contamination Information
  • A/T - DEXRON(R)-VI Fluid Information