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
- Fuel System - Factors That Affect Economy/Mileage
- Tire - Chirp During Brake Application
- A/C - Erratic HVAC Operation & Self Diagnostic Blinks
- A/C - Delayed Cooling After Engine Start Up
- A/C - Insufficient Performance
- Cooling System - Leaks
- A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
- Charging System - Very Low/Completely Dead Battery
- A/C - Compressor Vibration, Moan Noise
- Frame Crossmember, Front - Crack
- Aluminum Wheels - Cosmetic Damage During Balancing
- Tires - Slipping on Rim
- Tires (Front) - Irregular Wear
- Suspension - Noise From the Rear Spring Area
- Door Locks - Binding or Sticking or Key Hard to Insert
- Door's Secondary Weatherstrip - Loose or Pulled Away
- Doors - Cold Air and Wind Noise
- Transfer Case - Shift Effort High or Blockouts
- Drivetrain - Front Axle Growl
- Fuel - Injector Wires Trapped Under Air Cleaner
- ECM - Intermittent Connection
- ABS - False Code 7/Brake Warning Light Illuminates
- Brakes - Poor Rotor Finish/Hard Pedal Feel
- Brakes - Pull While Braking
- Engine - Block Heater Leaks
- Engine - Miss, Hesitation, or Roughness
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Backup Lamps/Tailgate Window Release - Inoperative
- Brakes (ABS) - 'False' or Dropping Pedal
- Air Bag (SIR) On-Off Switch Kits, New Parts and Service
- Door Handle, Exterior - Broken After Extended Use
- Interior - Door Handle Air Leaks
- Hood - Sheet Metal Movement
- Wiper Blade - Chatters, Streaks, Poor Winshield Contact
- Brakes - Sensitivity Adjustment (Rear)
- A/T - Click or Whine in Third or Fourth Gear
- A/T - Direct Clutch Premature Wear
- A/T - Forward and Reverse Engagement Shift Feel
- A/T - Buzzing Noise at Idle
- A/T - Harsh Park/Neutral to Reverse Engagement
- A/T - Slipping/No Reverse/Other Concerns After Service
- A/T - New Governor Driven Gear for No Upshift or Erratic
- M/T - Neutral/Drive Gear Rattle
- Compact Disc Players - CD Changer Loading Procedures
- SIR - Operating Vehicle with Warning Light On
- A/T - THM 700-R4 TCC Applies During 1 to 2 Gear Shift
- Instrument Panel - Upper Surface Reflection
- Fuels - Effect of Volatility on Driveability
- Side Door Window - Wind Noise
- Paint - Removal of Minor Imperfections
- Paint - Identification/Repair of Colorcoat Delamination
- A/T - 4L60 Binding/Inoperative In Reverse
- A/T - 4L60/700-R4 Transmissions Stuck In First
- Locking Differential - Chattering on Turns
- M/T - Fluid Leak From Vent
- P/S - Reduced Assist When Cold
- 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
- 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
- Warranty Inquiry System
- 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 - Corporate Parts Return Program Instructions
- Vehicle - Use of a Diagnostic Worksheet
- Warranty Information Letters - Release Index
- GM Campaign Identification Label
- Vehicle - AC Delco Locator Service, Electronics Exchange
- Warranty - Diagnostic Claim Processing Revisions
- Campaign - Product Bulletin Numbering System
- Parts - Expediting Procedures
- Glass - Adhesive Caulking Kit Revisions
- Warranty - Corporate Parts Return Program
- I/M 240 Repairs - Obtaining Technical Assistance
- Fuel System - Factors That Affect Economy/Mileage
- Tire - Chirp During Brake Application
- Brakes - Aftermarket Parking Brake
- Brake Fluid - Level And Filling Recommendations
- Instrument Cluster - Exchange Locator Program
- Electrical - Instrument Panel And General Wiring Repair
- A/C - Erratic HVAC Operation & Self Diagnostic Blinks
- A/C - CFC Reduction & Refrigerant Recovery Recycling
- A/C Refrigerant - Contamination
- A/C - Delayed Cooling After Engine Start Up
- A/C - Insufficient Performance
- Tools - A/C Leak Detector Maintenance Kit Availability
- A/C - Systems With R12 Or R134a Service Issue
- A/C - Retrofitting R-12 to R-134a
- A/C - Tool And Equipment Maintenance
- A/C - PureGuard 2 Operating Alert
- A/T & M/T - AC Delco Remanufactured Transmissions
- ACDelco(R) Remanufactured Transmissions - Program Update
- Engines - ACDelco Remanufactured
- Engine - Surface Conditioning Discs Precautions
- Engine - AC Delco Remanufactured Engines
- Cooling System - Leaks
- A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
- Charging System - Very Low/Completely Dead Battery
- Steering - System Bleed Procedures
- Fuel System - Intank Electric Pump Loosens
- A/C - Compressor Vibration, Moan Noise
- A/C Compressor Oval O-Ring Seal - Revised Design
- A/C - System Diagnostic Procedure
- A/C - New Compressor Sealing Washer
- A/C - Shaft Nut Removal from the HR6HE Compressor
- A/C Compressor Seal Washer - Reference Chart
- Suspension - Shock Absorber/Strut Replacement Guidlines
- Recall 87V126000: Tie Rod Nut Defect
- Cooling - Radiator Repair/Replacement Guidelines
- Frame Crossmember, Front - Crack
- Ball Joints - Greaseable Components Now Available
- Recall 87V128000: Shock Absorber Nut Defect
- Aluminum Wheels - Cosmetic Damage During Balancing
- Wheels (Steel) - Damage Due to Improper Mounting
- Wheels - Sealing Leaking Cast Aluminum
- Aluminum Wheels - New Coated Wheel Weights
- Wheels - Finish Damage During Off Car Balancing
- Warranty - OE Chrome Plated Aluminum Wheel ID
- Tires - Slipping on Rim
- Tires - Rotation and Warranty Coverage
- Tires - Proper Rotation and Warranty Coverage
- Tires (Front) - Irregular Wear
- Tire - Tread Chunking/Torn bead
- Tires - Speed Rated Information
- Suspension - Noise From the Rear Spring Area
- Door Locks - Binding or Sticking or Key Hard to Insert
- Door's Secondary Weatherstrip - Loose or Pulled Away
- Doors - Cold Air and Wind Noise
- Differential Pinion Shaft Lock Screw - Service
- Transfer Case - Shift Effort High or Blockouts
- Drivetrain - Front Axle Growl
- A/T TCC - MIL ON/False Code 32 Set Diagnostics
- A/T - Cooler Replacement/Flushing
- A/T - External Oil Cooler Kits
- A/T - THM 700-R4 New Harness/Solenoid Assembly
- MAP - Revised Check Chart for DTC's 33, 34, 63, 64
- Slip Yoke/U-Joint - Replacement and Servicing
- Tools - Introduction Of The Fuel Injector Tester
- Fuel - Injector Wires Trapped Under Air Cleaner
- ECM - Intermittent Connection
- Engine Controls - ECM May Contain Wrong PROM
- ECM/PCM - Damaged and/or Misdiagnosed
- ECM - Packard 32 Way Connector Identification
- Oxygen Sensors - Silica Contamination
- Electrical - VSS Connector Mislabeled
- Front Wheel Driveshaft Boot - Damage Prevention
- Recall 88V081000: ABS Warning Lamp Circuit Defect
- Brakes - ECU Software Improvement
- ABS - False Code 7/Brake Warning Light Illuminates
- Brakes - Updated Caliper Wear Adjustment
- Brakes - Replacement Booster Push Rod Height Gage
- Battery - Parasitic Current Drain Diagnosis
- Battery - Diagnosis and Charging
- Battery - Parasitic Draw Test
- Updated Battery Replacement Catalog Numbers
- Warranty - New Vehicle/Replacement Battery
- Battery - Insulator Replacement & Caution
- Tools - Released for CS Generator Diagnosis
- Engine - Generator Belt Tension
- Fuel - Feed/Return Pipe Repair
- Recall - Fuel Tank Inspection and/or Replacement
- Recall - Fuel Tank Inspection/Replacement
- Recall - Fuel Tank Inspection And/Or Replacement
- Audio - Radio Frequency Interference (RFI) Diagnosis/ID
- Lap/Shoulder Belts - Dealer Installed Rear Kits
- IP Dimmer Control - Proper Setting
- Oil Filters - Enhanced Anti-Drainback Valves
- Brakes - Poor Rotor Finish/Hard Pedal Feel
- Brakes - Pulsations and Rotor Surface Refinish
- Brakes - Change In Brake Feel After Rotor Refinishing
- Brakes - Rotor & Hub Flange Cleaning Tool Revision
- Brakes - Pull While Braking
- Recall 93V119000: Disc Brake Rotor Defect
- A/C - Refrigerant Loss Prevention
- Engine - Block Heater Leaks
- Engine - Miss, Hesitation, or Roughness
- Odometer/Speedometer - ACDelco Service Center Locations
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Backup Lamps/Tailgate Window Release - Inoperative
- ABS - Reading Trouble Codes
- Rear Wheel Anti-Lock Brakes - Trouble Code 7
- Anti-Lock Brake - Aftermarket Products Usage Precaution
- Brakes (ABS) - 'False' or Dropping Pedal
- Paint - Repair of Delamination from ELPO Primer
- Body - Sealer Tape For Collision Repairs
- Aftermarket Accessories - Installation Guidelines
- Air Bag (SIR) On-Off Switch Kits, New Parts and Service
- Airbags - Frontal (SIR) ON-Off Switch Kits, Parts/Procs
- State Emissions Testing Information
- 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
- Engine Controls - Electrostatic Discharge Damage
- Electrical - Care of Metri-pack 150 Terminals
- Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
- Engine Control - Altitude Adjustments
- Recall 87V127000: Door Striker Nut Defect
- Door Handle, Exterior - Broken After Extended Use
- Interior - Door Handle Air Leaks
- Hood - Sheet Metal Movement
- Child Restraint - Auxiliary Seat Belt
- Windshield - Two-Part Urethane Adhesive For Installation
- Wiper Blades - Chattering on Windshield
- Wiper Blade - Chatters, Streaks, Poor Winshield Contact
- Rearview Mirror, Outside - Lens Replacement Revised
- Cooling System - Reconstituted Anti-Freeze Information
- Coolant - Information on Propylene Glycol Usage
- Warranty - Recycled Engine Coolant Policy
- Coolant - Specification/Usage
- Coolant - Used Anti-Freeze Policy
- Recall 89V173000: Brake Hose Chafing
- Brakes - Sensitivity Adjustment (Rear)
- A/T - 4L60 Steel 3-4 Clutch Plate Availability
- A/T - Burned Forward/Direct Clutchs
- A/T - Click or Whine in Third or Fourth Gear
- A/T - Direct Clutch Premature Wear
- A/T - Forward and Reverse Engagement Shift Feel
- A/T - Revised 3-4 Clutch
- A/T - New Wave Plate Now Available
- A/T - THM 400 New Forward and Direct Clutch Assemblies
- A/T Fluid Level Indicator - Available
- A/T - Buzzing Noise at Idle
- A/T - Harsh Park/Neutral to Reverse Engagement
- A/T - New Product Information
- A/T - Service Replacement Assembly
- A/T - Slipping/No Reverse/Other Concerns After Service
- A/T - Core Return Product Feedback Form
- A/T - New Governor Driven Gear for No Upshift or Erratic
- A/T - 700-R4 & 400 Improved Governor Driven Gear
- A/T - 3L80/THM 400 Center Support Bolt
- A/T - Torque Converter Identification
- A/T - Harsh Reverse Engagements
- A/T - Engine Vacuum Testing
- A/T - How To Use A Pressure Gauge
- A/T - THM 400 Rear Band Adjustment Too Loose
- A/T - Rapid Converter Pump Bushing Wear
- A/T - Methods to Check for Restricted Exhaust
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - THM 400 Too Sensitive 3-2 Downshift
- A/T - No Upshift/Governor Contamination
- A/T - THM 400 No Reverse
- A/T - THM Steel Clutch Piston Inspection
- A/T - Sprag Rotation
- 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
- M/T - Pops out of 3rd Gear on Accel or Decel
- M/T - Neutral/Drive Gear Rattle
- M/T - HM-290 Updated Procedures
- M/T - New Leak Resistant Styrene Rubber Coated Gaskets
- Compact Disc Players - CD Changer Loading Procedures
- SIR - Operating Vehicle with Warning Light On
- Engine - Rough/Unstable/Incorrect Idle
- A/T - Updated ATF Fluid Color/Level Check Information
- A/T - New Trans Fluid, Dexron IIE
- A/T - Proper Fluid Level Checking Procedure
- Campaign - Fluid Containment
- A/T - DEXRON III Fluid Introduction
- A/T - THM 700-R4 TCC Applies During 1 to 2 Gear Shift
- Recall 87V125000: Speed Control Cable Lock Defect
- Isolation Diodes - Replacement Information
- PROM/MEMCAL - Identification Marks
- Instrument Panel - Upper Surface Reflection
- Instrument Panel - Upper Surface Cleaning
- Instrument Panel - Paint Peeling Prevention
- Suspension - Chassis Lubrication Importance
- Electrical - New Nickel Tape Shields Harnesses
- Cruise Control - (W/Electro Stepper Mtr.) Diagnostics
- Fuels - Effect of Volatility on Driveability
- Fuel - How Fuel Economy Is Determined
- Tires/Wheels - Wheel Weight Usage Precautions
- Side Door Window - Wind Noise
- Recall - Inoperative Seat Belt Lock Mechanism
- Body - Urethane Adhesives for Glass Applications
- Key Code - Information
- Key/Key Number/Security Chip - Replacement
- Paint - Manufacturer Codes
- Paint - Acid Rain Damage to Base Coat/Clear Coat
- Paint - High Volume Low Pressure Paint Application
- Paint - Importance of Checking Clear Coat Thickness
- Paint - Assembly Plant Identification
- Paint - Removal of Minor Imperfections
- Paint - Identification/Repair of Colorcoat Delamination
- Warranty - Rail Dust Removal & Chemical Spotting Labor
- Electrical Connectors - Service Procedure
- A/T Rear Case Bushing - Removal & Installation Procedure
- A/T - 4L60 Binding/Inoperative In Reverse
- A/T - Evaluating Peened Spacer Plates
- A/T - 4L60/700-R4 Transmissions Stuck In First
- Locking Differential - Chattering on Turns
- Drivetrain - Recommended Axle Lubricant
- A/T - THM 700R4 New Second Servo Apply Pin
- A/T - New Servo Apply Pin
- Audio - Tape Deck Noise/Static/Pauses Between Songs
- M/T - Fluid Leak From Vent
- A/C - Use of Alternate Refrigerants In CFC 12
- A/C - Use of R-22 Refrigerant Not Recommended
- Contaminated R12 Refrigerant - Testing & Handling
- A/C - R12 or R134a Service Recommendations
- A/C - Retrofitting R-12 Vehicles to R-134A
- A/T- THM 700-R4 New Output Shafts and Seal
- Electrical - Speed Sensor Buffer Connector Labeled Wrong
- Brakes - Enhancing Rear Braking Performance
- Sunshade - Replacement Availability
- P/S - Reduced Assist When Cold
- Brakes - Trailers
- Fuel - Reformulated/Oxygenated Gasolines
- Fuel - Use of Gasoline Containing 15 Percent MTBE
- Brakes - Modified Brake Bleeding Tool
- Alignment - The Importance of Four Wheel Alignment
- M/T - Updated Gaskets
- 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
- Drivetrain - AWD/4WD System Driveline Characteristics
- Wheels - Chrome Wheel Brake Dust Accumulation/Pitting
- Restraints - Usage of Used/Salvaged/Imitation Components
- Fuel System - E85 Fuel Usage Precaution
- A/T - No Movement in Drive or 3rd Gear
- 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