Transmission and Drivetrain: Technical Service Bulletins
- Customer Interest
- A/T - 4T60 Oil Pan Bolt Leaks
- A/T - Valve Body Cover or Oil Pan Leaks
- A/T - Engine Flare or Slip On Turns/Pump Whine
- A/T - Slipping in All Ranges
- Engine - Stalling While Shifting Into Reverse or Drive
- A/T - TCC Engages In 2nd Gear
- A/T - 4T60 Slips/No 3rd Gear/No Drive/Reverse
- A/T - Loss of Power In Drive and Reverse
- A/T - Intermittent Delayed Upshifts
- A/T - Torque Converter Clutch Shudder
- Ignition Switch - Unworkable in Accessory Position
- A/T - Intermittent or Complete Loss of Drive and Reverse
- A/T - 1-2 Slip or Shudder, 2nd Gear Slip, or No 2nd Gear
- A/T - Slips In First or No First Gear
- A/T - 1st-2nd Gear Shift Shudder
- A/T - THM 440-T4 Long/Delayed 2-3 Shift
- A/T - THM 440-4 Delayed 2-3 Shift or Loss of 3RD Gear
- A/T - Harsh Park/Neutral to Drive Shifting
- A/T - Rough Neutral to Drive Shift
- A/T - Harsh Park/Neutral to Drive Engagement
- A/T - Intermittent Loss of Drive
- A/T - No 3RD Gear (New Thrust Bearing)
- A/T - Summary of Shudder Diagnosis
- A/T - No TCC Apply or TCC Shudder
- A/T - 4T60/4T60E Drive Link Noise In Park/Neutral/Drive
- TCC - No Engagement/No Release
- A/T - Second Gear Starts
- A/T - THM 440-T4 Second Gear Starts
- A/T - THM 440-T4 Erratic Shifts/No Upshifts
- A/T - Harsh Engagement or Double Bump From P or N to R
- A/T - Harsh Shift, Double Bump, or Shudder
- A/T - Intermittent No Reverse or Locks In Reverse
- A/T - Revised End Play Specifications
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- A/T - No Movement in Drive or 3rd Gear
- By Symptom
- Abnormal wear/deterioration
- Chattering
- Customer Interest
- A/T - 4T60 Oil Pan Bolt Leaks
- A/T - Valve Body Cover or Oil Pan Leaks
- A/T - Engine Flare or Slip On Turns/Pump Whine
- A/T - Slipping in All Ranges
- Engine - Stalling While Shifting Into Reverse or Drive
- A/T - TCC Engages In 2nd Gear
- A/T - 4T60 Slips/No 3rd Gear/No Drive/Reverse
- A/T - Loss of Power In Drive and Reverse
- A/T - Intermittent Delayed Upshifts
- A/T - Torque Converter Clutch Shudder
- Ignition Switch - Unworkable in Accessory Position
- A/T - Intermittent or Complete Loss of Drive and Reverse
- A/T - 1-2 Slip or Shudder, 2nd Gear Slip, or No 2nd Gear
- A/T - Slips In First or No First Gear
- A/T - 1st-2nd Gear Shift Shudder
- A/T - THM 440-T4 Long/Delayed 2-3 Shift
- A/T - THM 440-4 Delayed 2-3 Shift or Loss of 3RD Gear
- A/T - Harsh Park/Neutral to Drive Shifting
- A/T - Rough Neutral to Drive Shift
- A/T - Harsh Park/Neutral to Drive Engagement
- A/T - Intermittent Loss of Drive
- A/T - No 3RD Gear (New Thrust Bearing)
- A/T - Summary of Shudder Diagnosis
- A/T - No TCC Apply or TCC Shudder
- A/T - 4T60/4T60E Drive Link Noise In Park/Neutral/Drive
- TCC - No Engagement/No Release
- A/T - Second Gear Starts
- A/T - THM 440-T4 Second Gear Starts
- A/T - THM 440-T4 Erratic Shifts/No Upshifts
- A/T - Harsh Engagement or Double Bump From P or N to R
- A/T - Harsh Shift, Double Bump, or Shudder
- A/T - Intermittent No Reverse or Locks In Reverse
- A/T - Revised End Play Specifications
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- A/T - No Movement in Drive or 3rd Gear
- Driveability
- Erratic Shifting
- Hard Shifting
- Incorrect gear selection
- Inoperative
- A/T - Diagnosis Information, Lo-Reverse Clutch
- A/T - Intermittent or Complete Loss of Drive and Reverse
- A/T - 1-2 Slip or Shudder, 2nd Gear Slip, or No 2nd Gear
- A/T - Loss of Drive and/or Reverse
- A/T - Intermittent Loss of Drive
- A/T - No Converter Clutch Apply When Unit Is Hot
- A/T - 440T4 No Vehicle Movement/Any Direction
- A/T - No TCC Apply or TCC Shudder
- A/T - No Movement in Drive or 3rd Gear
- Leaks
- No shift/Incorrect gear engagement
- A/T - TCC Engages In 2nd Gear
- A/T - Slips In First or No First Gear
- A/T - THM 440-4 Delayed 2-3 Shift or Loss of 3RD Gear
- A/T - No 3RD Gear (New Thrust Bearing)
- A/T - Early Upshift/No Kickdown
- A/T - THM Late or No Upshifts
- A/T - 440T4/4T60 Late or No Upshift
- A/T - 440T4 No 1-2 Shift After Rebuild
- A/T - 125C, 440T4 No Upshift
- A/T - 440T4 No Vehicle Movement/Any Direction
- A/T - Slipping or No-Shift/Metal Sealing Rings
- TCC - No Engagement/No Release
- A/T - Second Gear Starts
- A/T - THM 440-T4 Second Gear Starts
- A/T - THM 440-T4 Erratic Shifts/No Upshifts
- A/T - Intermittent No Reverse or Locks In Reverse
- Noise
- Overheating
- Slipping
- A/T - Engine Flare or Slip On Turns/Pump Whine
- A/T - Slipping in All Ranges
- A/T - Loss of Power In Drive and Reverse
- A/T - 1-2 Slip or Shudder, 2nd Gear Slip, or No 2nd Gear
- A/T - Slips In First or No First Gear
- A/T - THM 440-T4 Long/Delayed 2-3 Shift
- A/T - THM 440-4 Delayed 2-3 Shift or Loss of 3RD Gear
- A/T - Soft, Slipping or No 1-2 Shift
- A/T - 440T4 2-3 Bind-Up/Slips
- A/T - 440T4 Slipping On 2-3 Shift
- A/T - 440T4 Slips Or No Movement Forward
- TCC - No Engagement/No Release
- A/T - Second Gear Starts
- Sticking/Binding
- Vibration
- 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
- ACDelco(R) Remanufactured Transmissions - Program Update
- A/T & M/T - AC Delco Remanufactured Transmissions
- RTV Sealant - Usage Precaution
- Engine/Transmission - Oil Cooler Diagnosis
- A/T - 4T60 Oil Pan Bolt Leaks
- A/T - New Bottom Pan & Controlled Compression Gasket
- A/T - Update Bottom Pan and Gasket
- A/T - Valve Body Cover or Oil Pan Leaks
- A/T - Engine Flare or Slip On Turns/Pump Whine
- A/T - Slipping in All Ranges
- Engine - Stalling While Shifting Into Reverse or Drive
- A/T - TCC Engages In 2nd Gear
- A/T - Updated Service Part Numbers for Oil Pumps
- A/T - New Oil Pump Drive Shaft & Other Changes
- A/T - 4T60 Slips/No 3rd Gear/No Drive/Reverse
- A/T Oil Cooler and Cooler Line - Flushing
- A/T - Loss of Power In Drive and Reverse
- Torque Converter - Bolt Torque Revision
- A/T - 440T4 Model/Converter Identification
- A/T - Intermittent Delayed Upshifts
- A/T - Torque Converter Clutch Shudder
- Drive Axle - Boot Protectors
- Ignition Switch - Unworkable in Accessory Position
- A/T - Diagnosis Information, Lo-Reverse Clutch
- A/T - Intermittent or Complete Loss of Drive and Reverse
- A/T - New 2nd Gear Clutch Piston Seal
- A/T - 3T40 New Roller Clutch
- A/T - THM 440T4/4T60E New Clutch Plates
- A/T - New Input Clutch and 3rd Clutch Seal Installers
- A/T - 1-2 Slip or Shudder, 2nd Gear Slip, or No 2nd Gear
- A/T - Slips In First or No First Gear
- A/T - 1st-2nd Gear Shift Shudder
- A/T - THM 440-T4 Long/Delayed 2-3 Shift
- A/T - THM 440-4 Delayed 2-3 Shift or Loss of 3RD Gear
- A/T - Loss of Drive and/or Reverse
- A/T - Soft, Slipping or No 1-2 Shift
- A/T - Harsh Park/Neutral to Drive Shifting
- A/T - Rough Neutral to Drive Shift
- A/T - Harsh Park/Neutral to Drive Engagement
- A/T - 440T4 3rd Clutch Inner Seal Change
- A/T - 440T4 3rd Clutch Plate Change
- A/T - Identification Information
- A/T - Drive Link Wear Specification Revised
- 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 - No 3RD Gear (New Thrust Bearing)
- A/T - Core Return Product Feedback Form
- A/T - 125/125C/440-T4 Identifying Final Drive Ratios
- A/T - 440T4 Poor Shift Quality
- A/T - 440T4 Preliminary Check Procedure
- A/T - THM Control Valve Assembly Cleaning/Servicing
- A/T - 440T4 Supplemental Diagnosis
- A/T - 440T4 Delayed Forward Engagement/Slips
- A/T - 4404T Throttle Pedal Effort/ Modification
- A/T - 440T4 Check Ball Location #14 Illustrated
- A/T - Supplement To ATRASIL8725
- A/T - 440T4 Lockup Sleeve Installation
- A/T - 440T4 Harsh Apply/Shudder On Reverse Application
- A/T - Converter Clutch Solenoid Fluid Source I.D.
- A/T - 440T4 Elimination Of Reverse Reation Drum Plate
- A/T - 440T4 Buzzing Noise
- A/T - 440T4 Improved Shift Feel/2nd Clutch
- A/T - 440T4 Input Sprag Replacement
- A/T - 440T4 2-3 Bind-Up/Slips
- A/T - 440T4 Wiring Schematics
- 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 - 440T4 No Line Pressure Rise
- A/T - Early Upshift/No Kickdown
- A/T - 440T4/4T60 Spacer Plate Matching
- A/T - How To Use A Pressure Gauge
- A/T - AXOD/E 44T4's and 125's Chain Stretch
- A/T - 440T4 Channel Plate Gasket Blow-Out
- A/T - 440T4 No Upshift/Wrong Gear
- A/T - THM Late or No Upshifts
- A/T - 440T4 Coast-Down Clunk
- A/T - Drive Axle and Wheel Lug Nut Torque Specifications
- A/T - 440T4/4T60 Late or No Upshift
- A/T - 440T4 Converter Clutch Shudder On Apply
- A/T - No Converter Clutch Apply When Unit Is Hot
- A/T - Converter Clutch Shudder
- A/T - Pressure Tap Locations
- A/T - 440T4 No Coasting 2-1 Down Shift
- A/T - 440T4 Noises/Improper Fluid Levels After Service
- A/T - 440T4 Slipping On 2-3 Shift
- A/T - 440T4 No 1-2 Shift After Rebuild
- A/T - 440T4 Bind-Up/Fourth Gear After Rebuild
- A/T - 440T4 Overheating Of Torque Converter
- A/T - 125C, 440T4 No Upshift
- A/T - 440T4 Reverse Engagement In Neutral
- A/T - 440T4 Delayed Engagement
- A/T - 440T4 No Vehicle Movement/Any Direction
- A/T - 440T4 Replacing Left Axle Seal
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - 440T4 Early/Late Checkball Locations
- A/T - 440T4 Input Sprag Clutch/Updated Part
- A/T - 440T4 No Reverse Engagement After Rebuild
- A/T - 440T4 Slips Or No Movement Forward
- A/T - 440T4 Converter Regulator Valve
- A/T - 440T4 Blowing Fuses
- A/T - 440T4 Plastic Oil Lube Dam
- A/T - 440T4 Bind-Up In All Gears
- A/T - Sprag Rotation
- A/T - 440T4 TCC Applies With 1-2 Upshift
- A/T - 440T4 Converter Regulator Spring Update
- A/T - 440T4 Lock Up And Cruise Control Problems
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - Math Part II
- A/T - 440T4 Soft/Slipping 1-2 Upshift Flare
- A/T - 440T4 Reverse Reaction Plate/Valve Body Strap
- A/T - 440T4 Converter Clutch Shudder
- 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 - Summary of Shudder Diagnosis
- A/T - No TCC Apply or TCC Shudder
- A/T - Checking Chain For Possible Wear
- A/T - Checking Chain For Possible Wear 440-T4
- A/T - 4T60/4T60E Drive Link Noise In Park/Neutral/Drive
- Drivetrain - Drive Axle Nut Sizes
- TCC - No Engagement/No Release
- A/T - Throttle Valve Lever Return Spring Eliminated
- A/T - Second Gear Starts
- A/T - THM 440-T4 Second Gear Starts
- A/T - Evaluating Peened Spacer Plates
- A/T - THM 440-T4 Erratic Shifts/No Upshifts
- Drivetrain - Recommended Axle Lubricant
- A/T - Harsh Engagement or Double Bump From P or N to R
- A/T - New 1-2 Band Assembly Does Not Require Stop
- A/T - 4T60 New 1-2 and Reverse Bands
- A/T - New Band Assemblies
- A/T - Harsh Shift, Double Bump, or Shudder
- A/T - Intermittent No Reverse or Locks In Reverse
- A/T - New Transaxle Case
- A/T- 3T40 New Side Cover and Bottom Pan Gasket
- A/T - Case Cover Part Number Correction
- Drivetrain - New Seal Protector for Drive Axle R&R
- A/T - Revised End Play Specifications
- A/T - New Thrust Bearing Assembly
- A/T - New Thermo Element/Setting Procedure
- 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