Transmission and Drivetrain: Technical Service Bulletins
- Customer Interest
- A/T - Valve Body Cover or Oil Pan Leaks
- A/T - Slipping in All Ranges
- Engine - Stalling While Shifting Into Reverse or Drive
- A/T Cooler Pipe - Buzz or Moan After TCC Engagement
- Starter/Flywheel - Gear Clash or Milling While Cranking
- A/T - Slips In First or No First Gear
- A/T - Harsh Gear Engagement
- A/T - Harsh Park/Neutral to Drive Shifting
- A/T - Harsh 1-2 Upshift When Hot During Acceleration
- A/T - Intermittent Loss of Drive
- M/T - Shift Lever Rattle/Buzz Noise in 3rd or 4th Gear
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- A/T - No Movement in Drive or 3rd Gear
- By Symptom
- Abnormal wear/deterioration
- Customer Interest
- A/T - Valve Body Cover or Oil Pan Leaks
- A/T - Slipping in All Ranges
- Engine - Stalling While Shifting Into Reverse or Drive
- A/T Cooler Pipe - Buzz or Moan After TCC Engagement
- Starter/Flywheel - Gear Clash or Milling While Cranking
- A/T - Slips In First or No First Gear
- A/T - Harsh Gear Engagement
- A/T - Harsh Park/Neutral to Drive Shifting
- A/T - Harsh 1-2 Upshift When Hot During Acceleration
- A/T - Intermittent Loss of Drive
- M/T - Shift Lever Rattle/Buzz Noise in 3rd or 4th Gear
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- A/T - No Movement in Drive or 3rd Gear
- Driveability
- Erratic Shifting
- A/T - No Reverse, Slips In Low/Reverse
- A/T - Converter Clutch Shudder
- A/T - THM 125 No Second/Third Gear After Overhaul
- A/T - 125/200/200 4R/325 4L Late or No Upshift
- A/T - 125, 200C/200 4R, 700 R4 Hidden Residue Build Up
- A/T - 125/126C No Second Gear Or Slipping After Rebuild
- A/T - 125C Shifts 1-3 (Skips 2nd)
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Hard Shifting
- Incorrect gear selection
- Inoperative
- Leaks
- No shift/Incorrect gear engagement
- A/T - Slips In First or No First Gear
- A/T - THM Late or No Upshifts
- A/T - 125/125C No Upshift - Governor Pipe Dislodged
- A/T - 125/126C No Second Gear Or Slipping After Rebuild
- A/T - 125/125C No Second Gear After Rebuild
- A/T - 125C, 440T4 No Upshift
- A/T - 125/125C Delayed Reverse Or Slips In Reverse
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - No Upshift/Governor Contamination
- Noise
- Slipping
- Sticking/Binding
- Won't disengage
- 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
- Vehicle - Fluid Leak Detection/Dyes
- ACDelco(R) Remanufactured Transmissions - Program Update
- A/T & M/T - AC Delco Remanufactured Transmissions
- A/T - Valve Body Cover or Oil Pan Leaks
- A/T - Slipping in All Ranges
- A/T - Transaxle Oil Filter Differences
- Engine - Stalling While Shifting Into Reverse or Drive
- A/T - Updated Service Part Numbers for Oil Pumps
- A/T Cooler Pipe - Buzz or Moan After TCC Engagement
- Starter/Flywheel - Gear Clash or Milling While Cranking
- A/T - Diagnosis Information, Lo-Reverse Clutch
- A/T - 3T40 New Roller Clutch
- A/T - THM 440T4/4T60E New Clutch Plates
- A/T - Revised Direct Clutch Housing
- A/T - No Reverse, Slips In Low/Reverse
- A/T - Slips In First or No First Gear
- A/T - Harsh Gear Engagement
- A/T - Harsh Park/Neutral to Drive Shifting
- A/T - THM 125C Product Update Book
- Tools - Turbine Shaft Seal Ring Installation Tool
- A/T - Drive Link Wear Specification Revised
- A/T - Harsh 1-2 Upshift When Hot During Acceleration
- A/T - Intermittent Loss of Drive
- A/T - New Input Carrier Thrust Washers
- A/T - New R&R Final Drive Pinion Gear Washers & Sun Gear
- A/T - ID Information Including 3-Letter Mode Code
- A/T - Service Replacement Transaxle Assembly SRTA Update
- A/T - Core Return Product Feedback Form
- A/T - 125/125C/440-T4 Identifying Final Drive Ratios
- A/T - 125C Throttle Valve Buzz
- A/T - THM Identification Code Definitions
- A/T - THM Control Valve Assembly Cleaning/Servicing
- A/T - 125/125C Improved Transmission Gaskets
- A/T - Converter Clutch Solenoid Fluid Source I.D.
- A/T - THM 125C Manual Valve Change/Improved Shift Feel
- A/T - THM 125C Sticking TCC Solenoids
- A/T - 3T40/THM 125C Intermittent or No TCC Apply
- A/T - 125/125C Slipping in All Ranges
- A/T - 3T40/THM 125C Forward Drum Design Changes
- A/T - Torque Converter Identification
- A/T - Engine Vacuum Testing
- A/T - Diagnosing Converter Lock-Up Problems
- Overview
- Test # 1 - Checking For 12 Volts at Terminal -A-
- 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-
- Test # 7 - Grounding the -D- Wire
- 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 - 125C Uncontrolled Lock-Up, Kills Engine At Stop
- A/T - How To Use A Pressure Gauge
- A/T - AXOD/E 44T4's and 125's Chain Stretch
- A/T - 125/440 T4 Sprocket and Final Drive Identification
- A/T - THM Late or No Upshifts
- A/T - Drive Axle and Wheel Lug Nut Torque Specifications
- A/T - Harsh Forward Engagement
- A/T - No Converter Clutch Apply When Unit Is Hot
- A/T - Rapid Converter Pump Bushing Wear
- A/T - Converter Clutch Shudder
- A/T - 125/125C Forward Drum Cautions
- A/T - THM 125 No Second/Third Gear After Overhaul
- A/T - 125/200/200 4R/325 4L Late or No Upshift
- A/T - 125, 200C/200 4R, 700 R4 Hidden Residue Build Up
- A/T - 125C TCC Will Not Release After Warm-Up
- A/T - Pressure Tap Locations
- A/T - 125/125C No Upshift - Governor Pipe Dislodged
- A/T - 125/126C No Second Gear Or Slipping After Rebuild
- A/T - 125/125C ATF Leaking Past Front Seal
- A/T - 125/125 C Intermediate Band Adjustment
- A/T - 125/125C Car Creeps Forward After Overhaul
- A/T - 125C Shifts 1-3 (Skips 2nd)
- A/T - 125C Engine Dies In Gear
- A/T - 125/125C No Second Gear After Rebuild
- A/T - Governor Pressure Switches
- A/T - 125/125C No Movement Any Direction
- A/T - 125/125C Input Drum Contacting Center Support
- A/T - 125C Harsh 1-2 Shift Under Hot/Medium Acceleration
- A/T - 125C, 440T4 No Upshift
- A/T - 125/125C Repeated Pump Rotor Spline Failure
- A/T - Methods to Check for Restricted Exhaust
- A/T - 125/125C Delayed Reverse Or Slips In Reverse
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - 125/125C TCC Engagement in Drive, First & Reverse
- A/T - No Upshift/Governor Contamination
- A/T - THM Steel Clutch Piston Inspection
- A/T - Sprag Rotation
- A/T - THM 125C Model Code Information
- A/T - 125C Case Differences
- A/T - Checking Pressure Switches For Leaks
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - Math Part II
- A/T - Choosing the Right ATF
- A/T - New Transmission/Transaxle Fluid
- A/T - Servicing Vehicles With Contaminated ATF
- A/T - DEXRON III Fluid Introduction
- A/T Shift Control Cable - Adjustment Procedure
- A/T Control Valve Assembly - Cleaning and Servicing
- A/T - Evaluating Peened Spacer Plates
- A/T- 3T40 New Side Cover and Bottom Pan Gasket
- Drivetrain - New Seal Protector for Drive Axle R&R
- M/T - Shift Lever Rattle/Buzz Noise in 3rd or 4th Gear
- 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