Repair and Diagnosis: Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Recalls
- Customer Interest
- Interior - Eliminating Unwanted Odors in Vehicles
- Body - Broken Rear Window Defogger Grid Detection
- Audio System - Noise When Using Portable Playback Unit
- Tires/Wheels - Vibration Shortly After Tires Are Mounted on Rim
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Restraints - Seat Belt Latching Issues/Warning Lights
- A/C - Musty Odors Emitted From (HVAC) System
- Electrical - MIL ON/DTC's Set By Various Control Modules
- A/C - Delayed Cooling After Engine Start Up
- Steering - Identifying Torque Steer
- Power Steering - Reduced Assist at Low Temperatures
- Fuel Pump - Objectionable Noise
- Engine - Hard Starting When Hot/Detonation
- Engine - Valve Train Noise/Miss/Rough Idle
- A/C - Compressor Moan/Vibration
- A/C - Broken Pipes Due to Loose/Missing Mounting Bolts
- 89T80B1D Adds Information to TSB 89T80A1D - 05/01/1990
- P/S - Temporary Reduction of Assist When Cold
- Engine - Coolant Loss
- Engine - Vibration, Rumble/Squeal at Idle or Just Above
- Wheels, Aluminum - Scratch Removal
- Door Lock Cylinder - Binds, Sticks
- A/T - Engine Flare or Slip On Turns
- A/T - Flare or Slips On Turns
- A/T - Stalls While Engaging Reverse or Drive Gear
- Engine - Stalls on Drive/Reverse Engagement
- A/T - TCC Engages In 2nd Gear
- A/T - Harsh 3-2 Downshifts, Diagnosis & Repair
- A/T - Harsh Upshift/3-2 Shift Conditions
- A/T - Harsh Gear Engagement
- A/T - Modulator Valve Buzz Noise
- A/T - THM 440-T4 Slips or No Drive
- A/T - Intermittent Delayed Upshifts
- ECM/PCM - Damaged or Mis-Diagnosed
- Brakes - Shudder or Pedal Pulsation
- PROM - Multiple Driveability Concerns
- Engine - Chuggle At 35-45 MPH
- Engine - Excessive Induction Noise
- Audio - Poor AM or FM Radio Reception, Antenna Coaxial
- Engine - Miss, Hesitation, or Roughness
- Radio - Ignition Noise During Cassette Deck Operation
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Cooling Fan - Runs Battery Dead Diagnosis
- A/C - Pipe Leak From A/T Shift Cable Contact
- Interior - Instrument Panel Squeak, Install Clips
- Tailgate - Power Lock Inoperative
- Power Steering - Pressure Pipe Leakage
- A/T - Long or Delayed 2-3 Shift
- A/T - Double Bump, Harsh Engagement, Shudder P to N or R
- A/T - Delayed Neutral to Drive Engagement
- A/T - THM 440-T4 1-2 Shift Shudder
- A/T - Harsh Engagement or Engagement Shudder
- A/T - Intermittent/Complete Loss of Drive and Reverse
- A/T -THM 440-T4 Loss of Drive and/or Reverse
- A/T - Drive Link Noise in PARK/NEUTRAL Diagnosis
- A/T - Intermittent Loss of Drive
- SIR - Operating Vehicle with Warning Light On
- Instrument Panel - Upper Surface Reflection
- Radio - Power Antenna Will Not Retract
- A/T - THM 440-T4 Erratic Shifts/No Upshifts
- A/T - Harsh Engage, Bump, or Shudder, Shifting to REV
- A/T - Intermittent No Reverse or Locks In Reverse
- A/T - THM 125C Harsh 1-2 Shift
- A/T - THM 440-T4 Harsh 1-2 Shift
- A/T - 4T60 No Reverse/Slipping or Band Distress
- A/T - No 3RD Gear, New Thrust Bearing
- P/S - Reduced Assist When Cold
- Brakes, Front - Pulsation Diagnosis, Correction, Repair
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- A/T - No Movement in Drive or 3rd Gear
- Body - Marks/Stains on Windshield When Wet
- Body - Stain/Film On Windshield Glass Perimeter
- Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Recommended Repairs
- Seals, Gaskets
- Superceded Bulletins
- All Technical Service Bulletins
- Interior - Eliminating Unwanted Odors in Vehicles
- Locks - Key Code Security Rules, Key Code Look Up
- Vehicle - Engine And Sub Systems Flushing Info. (CANADA)
- Vehicle - Engine And Sub-Systems Flushing Recommendations
- Wheels/Tires - Use Of Nitrogen Gas In Tires
- Tires - Information On Proper Tire Pressure
- Engine - THIS BULLETIN HAS BEEN CANCELED
- Fuel System - TOP TIER Detergent Gasoline
- Tires/Wheels - OE Tire Shake/Vibration Information
- Suspension - Shock Absorber/Strut Fluid Leak Information
- M/T - Operating Characteristics Information
- Brakes - Resurfacing Park Brake Portion of Rear Brake Rotor
- Body - Hem Flange Sealer For Corrosion Protection
- Engine - Intake Manifold Inspection/Replacement
- Body - Metal Body Panel Corrosion Protection
- Fuel System - GM Fuel System Treatment PLUS(R) Info.
- Body - Broken Rear Window Defogger Grid Detection
- Fuel System - Fuel Injector Maintenance Cleaning
- Audio - Inadvertent Steering Wheel Button Activation
- Audio System - Noise When Using Portable Playback Unit
- Tires/Wheels - Vibration Shortly After Tires Are Mounted on Rim
- A/T - Fluid Oil Cooler Flow Test
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Lighting - Lamp Polycarbonate Lens Damage Prevention
- Restraints - Seat Belt Latching Issues/Warning Lights
- Body - Side Window Chipping Information
- Restraints - Driver/Passenger Seat Head Rest Information
- Engine - Use of 'Surface Conditioning Disks'
- Body - Application of Anti-Corrosion Materials
- A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
- A/C - Musty Odors Emitted From (HVAC) System
- A/T - Slight Vehicle Movement In Park At Start Up
- A/T - DEXRON(R)-VI Fluid Information
- Wheels/Tires - Refinishing Aluminum Wheels
- Lighting - Exterior Lamp Condensation and Replacement
- Electrical - MIL ON/DTC's Set By Various Control Modules
- Steering/Suspension - Wheel Alignment Specifications
- Warranty - Claims Submission
- Glove Compartment - Customer Information Missing
- Warranty - Goodwrench Service Lifetime Service Guarantee
- Warranty - GM Dealer Parts Procurement
- Warranty - Notice of Delayed Start Process
- Warranty - Parts Warranty Special Claims B and C
- Warranty - Request for Wholesale Authorization
- VIN Plate - Replacement Policy and Procedure
- Warranty - GM Dealer Empowerment Program
- Labor - Revised Operation Z1241/Personal Property Damage
- Warranty - Repair/Replace Policies & Procedures
- Parts Expediting - Reimbursement Policy
- Warranty - Enhanced Sublet Repair Policy
- Warranty - Required Claim Submission Procedures
- Warranty - Repair and Claims Procedures
- Warranty - Claim Processing
- Warranty - Claims Processing
- Warranty - Corporate Parts Return Program Instructions
- Warranty Information Network System - Stage 2
- Vehicle - Use of a Diagnostic Worksheet
- Vehicle - AC Delco Locator Service, Electronics Exchange
- Campaign - Product Bulletin Numbering System
- Vehicle Identification Number - Format Changes
- Parts - Expediting Procedures
- Glass - Adhesive Caulking Kit Revisions
- Warranty - Corporate Parts Return Program
- I/M 240 Repairs - Obtaining Technical Assistance
- Brake Fluid - Level And Filling Recommendations
- Digital Instrument Clusters - Repair/Replacement
- Electrical - Instrument Panel And General Wiring Repair
- A/C - Leak Test
- A/C - Neoprene O-Ring Usage Chart
- A/C - CFC Reduction and Refrigerant Recovery/Recycling
- A/C Refrigerant - Contamination
- A/C - Delayed Cooling After Engine Start Up
- Tools - A/C Leak Detector Maintenance Kit Availability
- A/C - Systems With R12 Or R134a Service Issue
- A/C - Tool And Equipment Maintenance
- A/C - PureGuard 2 Operating Alert
- Steering - Identifying Torque Steer
- Campaign - Temporary Reduction In P/S Assist
- Power Steering - Reduced Assist at Low Temperatures
- A/T & M/T - AC Delco Remanufactured Transmissions
- ACDelco(R) Remanufactured Transmissions - Program Update
- Engine - Revised Force Balancer Bolt Tightening
- Engines - ACDelco Remanufactured
- Engine - Surface Conditioning Discs Precautions
- Engine - AC Delco Remanufactured Engines
- Steering - System Bleed Procedures
- Fuel Pump - Objectionable Noise
- Engine - Hard Starting When Hot/Detonation
- Fuel Pump - Cold Start Stall, Hesitation, Loss of Power
- Brakes - Revised Brake Pads Decrease Brake Pedal Effort
- Engine - Valve Train Noise/Miss/Rough Idle
- A/C - Compressor Moan/Vibration
- A/C - Broken Pipes Due to Loose/Missing Mounting Bolts
- A/C Compressor - Interferes With Water Pump Bracket
- A/C Compressor Seal Washer - Reference Chart
- 89T80B1D Adds Information to TSB 89T80A1D - 05/01/1990
- Suspension - Shock Absorber/Strut Replacement Guidlines
- P/S - Temporary Reduction of Assist When Cold
- P/S - Rack & Pinion Gear Parts/Service Information
- Engine - Coolant Loss
- Engine Rocker Arm Cover - Using Gasket in Place of RTV
- Cooling - Radiator Repair/Replacement Guidelines
- Drive Belt Tensioner - Loss of Tension, Campaign Preview
- Engine - Accessory Drive Noise
- Campaign - Serpentine Belt Tensioner
- Engine - Vibration, Rumble/Squeal at Idle or Just Above
- Suspension - Torque Specification Revisions
- Service Manual - Rear Shock Absorber Torque Revision
- Wheels (Aluminum) - Balance Weight Usage
- Wheels - Sealing Leaking Cast Aluminum
- Aluminum Wheels - Coated Wheel Weights
- Wheels, Aluminum - Scratch Removal
- Warranty - OE Chrome Plated Aluminum Wheel ID
- Tire Company - Warranty Assistance Programs
- Tires - Speed Rated Information
- Door Lock Cylinder - Binds, Sticks
- Interior Trim - Service Manual Update
- Leather Seat Covers - Cleaning Procedure
- Webasto Sunroof System - Information Hotline
- A/T - New Bottom Pan and Controlled Compression Gasket
- A/T - Engine Flare or Slip On Turns
- A/T - Flare or Slips On Turns
- A/T - Transaxle Oil Filter Differences
- A/T - Stalls While Engaging Reverse or Drive Gear
- Engine - Stalls on Drive/Reverse Engagement
- A/T - TCC Engages In 2nd Gear
- A/T - Harsh 3-2 Downshifts, Diagnosis & Repair
- A/T - Harsh Upshift/3-2 Shift Conditions
- A/T - Harsh Gear Engagement
- A/T - Modulator Valve Buzz Noise
- A/T - THM 440-T4 Slips or No Drive
- A/T - Service Manual Procedure Update
- MAP - Revised Output Chart for Codes 33, 34, 63, and 64
- A/T Torque Converter - Inoperative/Failure Diagnosis
- A/T - Intermittent Delayed Upshifts
- Tools - Introduction Of The Fuel Injector Tester
- ECM/PCM - Damaged or Mis-Diagnosed
- ECM - Packard 32 Way Connector ID
- Oxygen Sensors - Silica Contamination
- Brakes - Shudder or Pedal Pulsation
- Battery - Diagnosis and Charging
- Battery - Charging Precautions
- Warranty - New Vehicle/Replacement Battery
- Battery - Insulator Replacement & Caution
- Battery - Courtesy Fuse Removed to Minimize Drain
- Generator - Reassembly of Slip Ring End Frame
- Engine Controls - Revised Chart A3, No Start
- PROM - Multiple Driveability Concerns
- Engine - Chuggle At 35-45 MPH
- Engine - Excessive Induction Noise
- Audio - Poor AM or FM Radio Reception, Antenna Coaxial
- Lap/Shoulder Belts - Dealer Installed Rear Kits
- IP Dimmer Control - Proper Setting
- Brakes - Rotor Refinishing Recommendations
- Brakes - Rotor & Hub Flange Cleaning Tool Revision
- Engine - Miss, Hesitation, or Roughness
- Radio - Ignition Noise During Cassette Deck Operation
- Odometer/Speedometer - ACDelco Service Center Locations
- Instrumens - Updated Tachometer Diagnosis
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Cooling Fan - Runs Battery Dead Diagnosis
- A/C - Pipe Leak From A/T Shift Cable Contact
- Anti-Lock Brake - Aftermarket Products Usage Precaution
- Underbody, Engine Compartment, Hood - Revised
- Vinyl Trim and Vinyl Top - Repair Information
- Body - Sealer Tape For Collision Repairs
- Interior - Instrument Panel Squeak, Install Clips
- Tailgate - Power Lock Inoperative
- Enhanced IM240 Program - Implementation Plan
- Emission - Enhanced Inspection Maintenance Programs
- I/M 240 Program - Equipment Purchase
- I/M Emissions Diagnostic Manual -Program
- Enhanced Emission I/M - Program Update
- Enhanced Emission Inspection Maintenance - Equipment
- EVAP System - Service of Connectors
- Tools - Use of Tech 1 ECM Cartridge and Procedure
- Engine Controls - Updated Code 42 (EST) Chart
- ECM/PCM - Damage Prevention
- Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
- Child Restraint - Auxiliary Seat Belt
- Recall - Windshield Retention Inspection
- Windshield - Two-Part Urethane Adhesive For Installation
- Coolant - Information on Propylene Glycol Usage
- Warranty - Recycled Engine Coolant Policy
- Power Steering - Pressure Pipe Leakage
- Locking Wire Wheel Covers - Component Inspection
- A/T - Long or Delayed 2-3 Shift
- A/T - Inoperative Lo-Reverse Clutch Diagnosis
- A/T - Double Bump, Harsh Engagement, Shudder P to N or R
- A/T - New 2nd Clutch Piston Seal
- A/T - Revised 4TH Clutch Reaction Plates
- A/T - Delayed Neutral to Drive Engagement
- A/T - Revised Forward Clutch Piston Seals
- A/T - New Input Clutch and 3rd Clutch Seal Installers
- A/T - New Input and 3RD Clutch Inner Piston Seal
- A/T - THM 440-T4 1-2 Shift Shudder
- A/T - Harsh Engagement or Engagement Shudder
- A/T - THM 125C New Forward Clutch Assembly
- A/T - Intermittent/Complete Loss of Drive and Reverse
- A/T -THM 440-T4 Loss of Drive and/or Reverse
- A/T - Noise Diagnosis Update
- A/T Fluid Flow Diagrams - Update
- A/T - Drive Link Noise in PARK/NEUTRAL Diagnosis
- A/T - Intermittent Loss of Drive
- A/T - New Input Carrier Thrust Washers
- A/T - Service Manual Update
- A/T - Service Replacement Model Update
- A/T - Core Return Product Feedback Form
- A/T - 125/125C/440-T4 Identifying Final Drive Ratios
- A/T - THM Control Valve Assembly Cleaning/Servicing
- A/T - 125C New Features for 1987
- 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 - 3T40/THM 125C Forward Drum Design Changes
- A/T - Torque Converter Identification
- A/T - Engine Vacuum Testing
- A/T - Diagnosing Converter Lock-Up Problems
- 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 - 125/200/200 4R/325 4L Late or No Upshift
- A/T - 125, 200C/200 4R, 700 R4 Hidden Residue Build Up
- A/T - Pressure Tap Locations
- 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, 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 - THM 125C Auxiliary Valve Body
- 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
- SIR - Operating Vehicle with Warning Light On
- A/T - Proper Fluid Checking
- A/T - DEXRON III Fluid Introduction
- PROM/MEMCAL - Identification Marks
- Engine - Servicing Camshaft/Crankshaft Gears
- A/T - New Chain Scavenging Scoop and Sprocket Support
- Instruments - Electronic Instrument Cluster Repair
- Digital Instrument Clusters - Obtaining Replacements
- Instrument Panel - Upper Surface Reflection
- Engine - Revised Cam Gear ServiceReplacement Procedure
- Suspension - Chassis Lubrication Importance
- Charging - CS Series Generator Terminal Identification
- Electrical - New Nickel Tape Shields Harnesses
- Fuel - How Fuel Economy Is Determined
- Campaign - NHTSA & So-Called Sudden Acceleration
- Tires/Wheels - Wheel Weight Usage Precautions
- Radio - Power Antenna Will Not Retract
- Body - Urethane Adhesives for Glass Applications
- Key Code - Information
- Key/Key Number/Security Chip - Replacement
- Paint - Chemical Etching Information
- Paint - Chipping Diagnosis & Repair
- Paint - Industrial Fallout/Rail Dust
- Paint - Codes/Cross References
- Warranty - Rail Dust Removal & Chemical Spotting Labor
- A/T - THM 440-T4 Erratic Shifts/No Upshifts
- A/T - New 1-2 and Reverse Bands
- A/T - Harsh Engage, Bump, or Shudder, Shifting to REV
- A/T - Revised Style 1-2 Band Assembly
- A/T - Intermittent No Reverse or Locks In Reverse
- A/T - THM 125C Harsh 1-2 Shift
- A/T - THM 440-T4 Harsh 1-2 Shift
- A/T - 4T60 No Reverse/Slipping or Band Distress
- A/T - 3T40 New Side Cover and Bottom Pan Gasket
- Drivetrain - Updated Drive Axle Removal Procedure
- A/C - Use of Alternate Refrigerants Other Than R-12
- Contaminated R12 Refrigerant - Testing & Handling
- A/C - Retrofitting R-12 Vehicles to R-134A
- A/T - Revised End Play Specification
- A/T - No 3RD Gear, New Thrust Bearing
- A/T - Updated R&R Pinion Gear Washers & Sun Gear
- P/S - Reduced Assist When Cold
- Daytime Running Lamp - Retrofit Kits
- Maintenance - Schedules
- Brakes, Front - Pulsation Diagnosis, Correction, Repair
- Fuel - Reformulated/Oxygenated Gasolines
- Steering - Alignment Specifications
- A/T - 125C Release of New Design LO-Reverse Pipe Seal
- Body - Metal Panel Adhesive Bonding Information
- Cooling System - Coolant Recycling Information
- M/T - Hydraulic Clutch Bleeding Procedure Improvement
- Engine, A/T - Shift/Driveability Concerns/MIL ON
- Instruments - Reduced PRNDL Display Visibility
- Body - Polypropylene Energy Absorber Replacement
- Engine - Sealant Usage/Procedures
- Electrical - Aftermarket Fuse Warning
- Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
- Brakes - Rotor Lateral Runout Correction Information
- Restraints - Usage of Used/Salvaged/Imitation Components
- Fuel System - E85 Fuel Usage Precaution
- A/T - No Movement in Drive or 3rd Gear
- A/T - Grinding/Growling Noise in Park on Incline
- Engine/Fuel System - Oil/Fuel Additive Information
- Cooling System, A/C - Aluminum Heater Cores/Radiators
- Wheels/Tires - Upsized Wheel/Tire Characteristics
- Audio System - Refurbishing Radio Faceplates/Knobs
- Body - Hem Flange Rust Repair Information
- Body - Marks/Stains on Windshield When Wet
- Wheels/Tires - Chrome/Steel Valve Stem Cap Precautions
- Engine - Noise/Damage Oil Filter Application Importance
- Engine - Drive Belt Misalignment Diagnostics
- Body - Maintaining Exterior Weatherstrip Appearance
- 06-08-111-004B - BULLETIN CANCELLATION NOTIFICATION
- Body - Stain/Film On Windshield Glass Perimeter
- Wheels/Tires - Accessory Wheel And Tire Information
- Wheels/Tires - Replacement Wheel Weight Information
- Tires/Wheels - Low Tire/Leaking Cast Aluminum Wheels
- Tires/Wheels - Tire Puncture Repair Procedures
- Lighting - Headlamp Warranty Replacement Guideline
- Interior - Proper Use of Floor Mats
- Wheels - Changing Procedures/Precautions
- Body - Squeeze Type Resistance Spot Welding/Equipment
- Electrical - Intermittent MIL/DTC P2138/Reduced Power
- Restraints - Extender Availability For Seat Belt
- Interior - Seat Cover Wrinkle/Crease/Burn Info
- A/T - Water Or Coolant Contamination Information
- Body - Drilling High Strength Steel Using CryoCobalt(R)
- Body - Vehicle Glass Distortion Information
- Fuel System - TOP TIER Detergent Gasoline (Canada)
- Tires/Wheels - Information on Tire Radial Force Variation (RFV)
- Engine - GM Dexos 1(R) And 2(R) Oil Specifications
- Engine - GM dexos 1(R) and dexos 2(R) Oil Specifications/Info.
- Body - Pre-Painting/Cleaning Process For TPO Plastic Fascias
- Drivetrain - Information on Driveline Clunk Noise
- Wheels - Chromed Aluminum Wheel Staining/Pitting/Corrosion
- Body - Paint-less Dent Repair Process
- Wipers/Washers - Windshield Wiper Performance Information
- Electrical - Ground Repair Information
- Interior - Cleaning Instrument Panel, Interior Trim