Transmission and Drivetrain: Technical Service Bulletins

• Recalls
  • Recall - Shifter Moves Without Pressing Release Button
    • Overview
    • Defect & Vehicles Involved, Owner Notification & Dealer Campaign Information
    • Parts, Service Procedure, Campaign Label & Claim Information
    • Owner Letter Information
  • Recall - Shifter Moves WIthout Pressing Release Button
    • Overview
    • Defect & Vehicles Involved & Owner Notification Information
    • Dealer Campaign, Parts & Service Procedure Information
    • Campaign Label, Claim & Owner Letter Information
  • Recall 88V050000: Transmission Shift Lever Defect
• Customer Interest
  • A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
  • Engine - Stops Running When Shifted to Reverse/Drive
  • Engine - Stops Running in Reverse Range
  • A/T - THM 180/180C Slipping or No Upshift
  • M/T - Neutral/Drive Gear Rattle
  • A/T - No Upshift Condition After Downshift
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - No Movement in Drive or 3rd Gear
• By Symptom
  • Abnormal wear/deterioration
    • A/T - No 1st Gear/Slips In 1st Gear
    • A/T - Front Bushing Wear
  • Customer Interest
    • A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
    • Engine - Stops Running When Shifted to Reverse/Drive
    • Engine - Stops Running in Reverse Range
    • A/T - THM 180/180C Slipping or No Upshift
    • M/T - Neutral/Drive Gear Rattle
    • A/T - No Upshift Condition After Downshift
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
    • A/T - No Movement in Drive or 3rd Gear
  • Driveability
    • Engine - Stops Running When Shifted to Reverse/Drive
    • Engine - Stops Running in Reverse Range
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Erratic Shifting
    • A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
    • A/T - 180C Erratic Shift,, Late Shifts, Burnt Clutch
    • A/T - Converter Clutch Shudder
    • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • Incorrect gear selection
    • A/T - No Converter Clutch Apply When Unit Is Hot
  • Inoperative
    • A/T - No Converter Clutch Apply When Unit Is Hot
    • A/T - No Movement in Drive or 3rd Gear
  • Leaks
    • Engine - Stops Running in Reverse Range
  • No shift/Incorrect gear engagement
    • A/T - THM 180/180C Slipping or No Upshift
    • A/T - Slipping or No-Shift/Metal Sealing Rings
    • A/T - No Upshift/Governor Contamination
    • A/T - No Upshift Condition After Downshift
  • Noise
    • M/T - Neutral/Drive Gear Rattle
    • A/T - Grinding/Growling Noise in Park on Incline
  • Odors
    • A/T - 180C Erratic Shift,, Late Shifts, Burnt Clutch
  • Recalls
    • Recall - Shifter Moves Without Pressing Release Button
      • Overview
      • Defect & Vehicles Involved, Owner Notification & Dealer Campaign Information
      • Parts, Service Procedure, Campaign Label & Claim Information
      • Owner Letter Information
    • Recall - Shifter Moves WIthout Pressing Release Button
      • Overview
      • Defect & Vehicles Involved & Owner Notification Information
      • Dealer Campaign, Parts & Service Procedure Information
      • Campaign Label, Claim & Owner Letter Information
    • Recall 88V050000: Transmission Shift Lever Defect
  • Slipping
    • A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
    • A/T - Sporadic Engagement of Torque Converter Clutch
    • A/T - No 1st Gear/Slips In 1st Gear
    • A/T - THM 180/180C Slipping or No Upshift
• 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
  • A/T & M/T - AC Delco Remanufactured Transmissions
    • Overview
    • Warranty Coverage
    • Warranty Claim Submission Procedures
  • Vehicle - Fluid Leak Detection
  • A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
  • Differential Pinion Shaft Lock Screw - Service
  • A/T - Modulator Chart
  • Engine - Stops Running When Shifted to Reverse/Drive
  • Engine - Stops Running in Reverse Range
  • Flywheel Bolts - Revised Torque Specification
  • A/T - Sporadic Engagement of Torque Converter Clutch
  • A/T - No 1st Gear/Slips In 1st Gear
  • A/T - THM 3T40 New Roller Clutch
  • A/T - THM 180/180C Slipping or No Upshift
  • A/T - Understanding Identification Information
  • A/T - Drive Link Wear Specifications Revised
  • Recall - Shifter Moves Without Pressing Release Button
    • Overview
    • Defect & Vehicles Involved, Owner Notification & Dealer Campaign Information
    • Parts, Service Procedure, Campaign Label & Claim Information
    • Owner Letter Information
  • Recall - Shifter Moves WIthout Pressing Release Button
    • Overview
    • Defect & Vehicles Involved & Owner Notification Information
    • Dealer Campaign, Parts & Service Procedure Information
    • Campaign Label, Claim & Owner Letter Information
  • A/T - Core Return Product Feedback Form
  • A/T - Converter Clutch Solenoid Fluid Source I.D.
  • A/T - Torque Converter Identification
    • Overview
    • 298 mm Identification
    • 245 mm Identification
  • A/T - Engine Vacuum Testing
  • 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 - How To Use A Pressure Gauge
  • A/T - Drive Axle and Wheel Lug Nut Torque Specifications
  • A/T - No Converter Clutch Apply When Unit Is Hot
  • A/T - 180C Erratic Shift,, Late Shifts, Burnt Clutch
  • A/T - Rapid Converter Pump Bushing Wear
  • A/T - Converter Clutch Shudder
  • A/T - Pressure Tap Locations
  • A/T - Governor Pressure Switches
  • A/T - Methods to Check for Restricted Exhaust
  • A/T - Slipping or No-Shift/Metal Sealing Rings
  • A/T - Front Bushing Wear
  • A/T - No Upshift/Governor Contamination
  • A/T - Sprag Rotation
  • A/T - Checking Pressure Switches For Leaks
  • 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 - Neutral/Drive Gear Rattle
  • A/T - DEXRON III Fluid Introduction
  • All THM Transmission/Transaxle Assembliescontrol Valve Assembly
    • Overview
    • Cleaning Procedures
    • Inspection of Control Valve Assembly Components
    • Stuck Valve Servicing
  • A/T - No Upshift Condition After Downshift
  • A/T - Evaluating Peened Spacer Plates
  • A/T - 3T40 New Side Cover and Bottom Pan Gasket
  • Recall 88V050000: Transmission Shift Lever Defect
  • M/T - Hydraulic Clutch Bleeding Procedure Improvement
  • Engine, A/T - Shift/Driveability Concerns/MIL ON
  • A/T - 4L60, Revised Sprag/Forward Clutch Hub
  • A/T - No Movement in Drive or 3rd Gear
  • A/T - Grinding/Growling Noise in Park on Incline
  • A/T - Water Or Coolant Contamination Information
  • A/T - DEXRON(R)-VI Fluid Information