1991 Recall Information.

      TSB Number     Issue Date   TSB Title
 564401A        OCT 96       Driveline Clunk Noises 
 91C51          JUN 95       Replacement Fuel Tank Faulty Welds Campaign 
 93C07A         MAR 93       Recall - Automatic Transmission Vent 4L60, 4L60E & 3L80 
 91C162         JUN 91       Safety Campaign 91C16 Incorrect Splash Shield Installed 

 91C236E        SEP 91       Emission Campaign 91C23 - (TPS)  Low Output Voltage 

 92C014B        AUG 91       Recall 92C01 Rear Axle Premature Bearing Wear 
 91C078B        NOV 90       Campaign 91C07 4WD Light Wiring Defect May Disable RWAL 

 631208A        APR 97       A/C Tool And Equipment Maintenance 
 661509A        APR 97       Fiber Glass Rear Fender Paint Star Shaped Crack 
 730503         APR 97       Labor Times Guide Update 
 620504         APR 97       Operating Procedures 
 731204         FEB 97       Air Conditioning Systems With R12 Or R134a Service Issue 
 731049         FEB 97       Body Sealer Tape For Collision Repairs 
 730501         FEB 97       Update Labor Time Guide 
 730502         FEB 97       Updates Labor Time Guide 
 630507         JAN 97       Updates Labor Time Guides 
 649601         JAN 97       Compact Disk Players Procedures 
 436407A        JAN 97       Low  Voltage Reading Or Dim Lights At Idle 
 661512         JAN 97       Outside Rearview Mirror Lens Replacement 
 600503         JAN 97       Warranty Repairs And Claims Procedures 
 631215         NOV 96       A/C Compressor Seal Washer Reference Chart 
 376602B        NOV 96       Engine Noise - Leaking Exhaust Manifolds 
 610111         NOV 96       Key Code Information 
 377148A        NOV 96       Transmission Shift Solenoid Update 
 630504         OCT 96       Warranty Administration Labor Time Guide Updates 
 630505         OCT 96       Warranty Labor Time Guide Updates 
 668304A        SEP 96       ACDelco Service Center Locations Odometer/Speedometer 
 630503         SEP 96       Labor Time Guide (Request for Review) Updates 
 661206         SEP 96       Section 1B - HVAC - Updated 
 661605         AUG 96       Child Restraint Locking Feature of Seat Belts 
 620502         JUL 96       Personal Property Damage - Labor Operation Z1241 
 568204A        MAY 96       Chatter from Windshield Wiper Blades 
 636532         MAY 96       Enhanced Emission Inspection Maintenance - Equipment 
 631209         MAY 96       R12 or R134a A/C Vehicle Service Issues 
 676117A        MAY 96       RTV Sealant - Use of Wacker T-330 for Intake Manifold 
 531703A        MAY 96       Refinishing Aluminum Wheels 
 638111         APR 96       Headlamp Lens Distortion Caused by Aiming Equipment 
 661505         MAR 96       Hood to Grille Contact (Install Paint Protection Film) 
 561505A        MAR 96       Wind Noise from Front Door/A-Pillar 
 636401         FEB 96       Updated Battery Replacement Catalog Numbers 
 576138         JAN 96       Crankshaft Balancer Remover/Installer Tool 
 516547         JAN 96       Revised Tech 1 Cartridge for Oxygen Sensor Test 
 536507         DEC 95       Enhanced Emission Inspection Maintenance - Update 
 376105A        OCT 95       Cold Engine Knock - Replace Oil Filter/Bearings/PROM 
 577115         SEP 95       Intermittent DTC 87 - High Ratio Error 
 580501A        SEP 95       Labor Time Submission  -  Format Change 
 580504         AUG 95       Inspection/Maintenance Labor Operations 
 588302A        JUL 95       AC Delco Locator Service for Delco Electronics Exchange 
 561603         JUL 95       Interior Door Handle Spring Breaks 
 566201         JUL 95       Overheat Resulting from Repositioning Fan in Shroud 
 560503         JUL 95       Previously GMC Truck  Warranty Information Letters 
 349212         JUN 95       Radio Frequency Interference (RFI) Diagnosis 
 570102         JUN 95       Reformulated, Oxygenated Gasoline and Calif. Phase 2 RFG 
 231054         JUN 95       Repair of Paint Delamination from ELPO Primer 
 580101         JUN 95       Use of a Diagnostic Worksheet 
 531205         MAY 95       Contaminated R12 Refrigerant Testing & Handling 
 510103         MAY 95       GM Campaign Identification Label 
 460601A        APR 95       4L80-E  Extended Trans. Warranty Coverage 
 520506         APR 95       ADCSM Empowerment Parameters Retail Matrix 
 564401         APR 95       Driveline Clunk Noise 
 570501         APR 95       Goodwill Adjustments Case-by-Case Administration 
 520505         APR 95       Panel Replacement Operations for Corrosion Repairs 
 436201B        APR 95       Propylene Glycol Engine Coolant 
 561601         APR 95       Seat Belt Operations, Features and Location 
 570201         MAR 95       General Information - DEXRON III A/T Fluid Introduction 
 431218A        MAR 95       J 39400 A/C Leak Detector Maintenance Kit Availability 
 563401         MAR 95       Rear Suspension - Section 3D 
 420515A        FEB 95       Chevrolet Claim Processing 
 516502         FEB 95       I/M Emissions Diagnostic Manual 
 436510         JAN 95       I/M 240 Program - Equipment Purchase 
 568201         JAN 95       Wiper Blade Chatter (Update Wiper Blades and Arms) 
 436507         DEC 94       Enhanced Emission Inspection Maintenance Program 
 476149         DEC 94       Oil Pressure Gauge Reading Concerns 
 468111         DEC 94       Piercing Wire Insulation during Electrical Diagnosis 
 467108         DEC 94       Transmission Extension Seal Leaks 
 431048         NOV 94       Adhesive Caulking Kit Revisions 
 431606         OCT 94       Cleaning Procedure for Leather Seat Covers 
 467303         OCT 94       Clutch Pedal Return Spring Fractured 
 467302         OCT 94       Clutch Pilot Bushing and Bearings 
 261603         OCT 94       Front Door Hinge Pin and Bushing Wear 
 436506         OCT 94       I/M 240 Repairs - Obtaining Technical Assistance 
 446501         OCT 94       PROM/MEMCAL - Identification Marks 
 431223         SEP 94       Contaminated A/C Refrigerant 
 410103         SEP 94       Product Campaign Bulletin Numbering System 
 464101         SEP 94       Slip Yoke Replacement And U-Joint Servicing 
 377110         SEP 94       Torque Converter Clutch - Shutter 
 330105A        SEP 94       Using GM Service Bulletins 
 449001         AUG 94       Diagnosing SIR DTC 24 
 480502         AUG 94       Information on Expediting Parts 
 469601         AUG 94       Radio Diagnostics - Kent-Moore Tool J39788 
 480501         JUL 94       Customer Concern Not Duplicated/Verified Labor Operation 
 149301         JUL 94       Release of Service Package For Nickel Tape 
 433502         JUL 94       Speed Rated Tires 
 466204         JUN 94       Engine Overheat/Low Power 
 476118         JUN 94       Enhanced PF52 and PF1218 Oil Filters 
 477118         JUN 94       Goodwrench Transmission - 4L80E/4L80EHD -  Applications 
 461202         MAY 94       A/C Control Head Flashes. Erratic Oper Of A/C Controls 
 477107         MAY 94       Center Support Bolt - New Service Package 
 461101         MAY 94       Manual Temp Control Lever Slips From Hot To Cold 
 477109A        MAY 94       Variable Pressure Control Solenoid for 4L80-E/4L80-EHD 
 377131         MAR 94       Loss of Drive in All Ranges (Replace Carrier Package) 
 033206         MAR 94       Reduced Power Steering Assist (Cold) 
 435001         FEB 94       Aftermarket Anti-Lock Brake System Products 
 361102         FEB 94       Blown Fuse, Erratic HVAC and Self Diagnostic Operation 
 361015         FEB 94       Door Trim Panel Removal - Revised Procedures 
 330106A        FEB 94       New Dcs Bulletin Search and Access to Vehicle Options 
 310504         FEB 94       Policy - Recycled Engine Coolant 
 460601         JAN 94       Extended Trans. Warranty Coverage - 4L80-E/4L80-Ehd 
 331226         JAN 94       Retrofitting R-12 Vehicles to R-134A 
 369602         JAN 94       Tape Deck Noise/Static/Pauses Between Songs 
 383001         DEC 93       Steering System Bleed Procedures 
 323501         DEC 93       Tires - Manufacturers' Assistance 
 377129         NOV 93       Fluid Leaks At Transmission Pass-Through Connector 
 345001         NOV 93       Four Wheel Antilock Brake System 
 306502         OCT 93       How Fuel Economy Is Determined 
 361009         SEP 93       Install Redesigned Door Latch 
 367103         AUG 93       Information on Auto. Transmission External Oil Coolers 
 261201R        AUG 93       Low A/C Charge Indicator Flashes 
 231054R        JUL 93       Identification & Repair of Paint Colorcoat Delamination 
 367102R        JUL 93       Information on Auto. Transmission Cooler Replacement 
 393504         JUL 93       Leaking Cast Aluminum Wheels 
 369601R        JUL 93       Poor Radio Reception Noise/Static 
 349212R        JUL 93       Radio Frequency Interference - Identification/Diagnosis 
 932499         JUL 93       Tape Deck Noise / Static During Program Pauses 
 393502R        JUN 93       Cosmetic Damage To Aluminum Wheels During Balancing 
 316501R        JUN 93       Introduction Of The Fuel Injector Tester Tool 
 931973E        MAY 93       Cosmetic Damage to Aluminum Wheels During Balancing 
 266402R        MAY 93       Fuel Injector Wires Trapped Under Air Cleaner 
 931638A        MAY 93       Isolation Diodes Information 
 923477A        MAY 93       Service Procedure Policy Changes 
 931693E        APR 93       Tires Slipping On Rim 
 9313310        MAR 93       Door Locks Binding or Sticking/Key Hard to Insert 
 931437A        MAR 93       Manual Update Transmission Unit Repair 3 - 4 Clutch 
 931477A        MAR 93       No Upshift/Stuck In First/No Codes/Exterior Leaks 
 93114A7A       MAR 93       Torque Converter Squeaks W/ 4L80E or 4L80EHD 
 9358A10        FEB 93       Acid Rain and Rail Dust Damage to Base/Clear Coat 
 93966C         FEB 93       Factors That Affect Fuel Economy 
 9311310        FEB 93       Outside Rear View Mirror Vibration 
 9374A6         FEB 93       Throttle Body Power Curve Information 
 93736B         JAN 93       Approved Engine Coolant Recycling Systems 
 93774B         JAN 93       Differential Pinion Shaft Lock Screw 
 93831A         JAN 93       Electronic A/C System Information 
 937110         DEC 92       Cup Holder Binding/Stuck 
 276501         DEC 92       Information on Perceived Low Power 
 923333B        DEC 92       Reduced Power Steering Assist When Cold 
 931030         NOV 92       Damage to Basecoat/Clearcoat Paint 
 9232410        NOV 92       Front Door Window Noise 
 93441A         NOV 92       HVAC  Control Head Inoperative - No Display 
 938C28         NOV 92       Incorrect or Erratic Oil Pressure Gauge Readings 
 93576A         NOV 92       Incorrect or Erratic Oil Pressure Readings 
 93497B         NOV 92       Shift Lever Shake and/or Nose In 2ND Gear 
 93508C         NOV 92       Speedometer Registers When Vehicle Is Stationary 
 93297A         OCT 92       Buzzing Noise At Idle Coming  From the 4L60E A/T 
 93316C         OCT 92       Effect of Fuel Volatility On Driveability 
 93356D         OCT 92       Engine Miss, Hesitation or Roughness - Information 
 93323E         OCT 92       Tire Damage Cause In GM Assembly Plants 
 9229110        SEP 92       Door Panel Fit / Retention 
 93125          SEP 92       Revised Brake Pressure Modulator Valve 
 93111D         SEP 92       Shaft Nut Removal HR6HE 
 111402R        SEP 92       Shaft Nut Removal from the HR6HE A/C Compressor 
 9151010        SEP 92       Water Leak In Door Module Area 
 922761B        AUG 92       A/C Moan 
 922751A        AUG 92       Blower Motor Noise - Chirp or Squeak 
 922657A        AUG 92       Driveline Stop Clunk 
 915087D        AUG 92       Fluid Leak From Transfer Case Vent (New Process 241) 
 93036D         AUG 92       New Design Spark Plugs 
 922727A        AUG 92       New Wiring Harness Assembly W/Temperature Sensor 
 922477A        AUG 92       Precautions On Transmission Wiring Harness 4L80-E 
 922501A        AUG 92       Use of Alternate Refrigerants In CFC 12 
 922546A        AUG 92       Valve Adjustment 
 922366E        JUL 92       Lack of Power At Highway Speeds -Trans. Hot Mode (4L80E) 
 915051B        JUN 92       A/C Compressor Moan, Vibration, Noise 
 922171A        JUN 92       A/C Performance Diagnosis Use of Recirculation Mode 
 922323E        JUN 92       Damage Due to Improper Mounting of Steel Wheels 
 922297A        JUN 92       No Reverse With 4L80E,  4L80EHD A/T 
 922011B        MAY 92       Air Conditioning Low Charge Indicator Flashes 
 922024D        MAY 92       Front Drive Axle Leaks 
 921599E        APR 92       Engine Block Heater Leaks 
 9218410        APR 92       Front Door Hinge Pins and/or Bushing Wearing 
 921615         APR 92       Rear Tire Chirp During Braking 
 9149810        APR 92       Tailgate Cable Assembly Rattles 
 914937A        MAR 92       No Reverse/Delayed Reverse Cold 
 91451A8C       MAR 92       Oil Pressure Gage Flutters, or May Read High 
 92851D         FEB 92       Missing Block Fitting Sealing Washers From Service A/C 
 914845         FEB 92       Park Brake Cable Tension Readjustment 
 929510         FEB 92       Seat Moves Forward During Braking While Unoccupied 
 914776A        FEB 92       Valve Rocker Arm Bolt Failure 
 92871B         FEB 92       Water Leaks From Air Conditioning Evaporator Drain 
 92807B         JAN 92       Correct Transmission Fluid Usage M/T 
 9146910        JAN 92       Interior Door Handle Rattle 
 914681B        DEC 91       HVAC Control Head Locks Up/Temp Door Actuator Clicks 
 92667A         DEC 91       High Line Pressure Instability 
 923310         NOV 91       Acid Rain Damage to Base Coat/Clear Coat 
 ATRATB078      NOV 91       How To Use A Pressure Gauge - Automatic Trans. 
 914454C        NOV 91       Leak At Front Axle Vent Hose Connector Threads 
 92351D         NOV 91       New Air Conditioning Compressor Sealing Washer 
 9145510        NOV 91       Sliding Rear Window Leaks Water and Rattles 
 92427A         NOV 91       Sporadic Transmission Slip, Downshift, or Busy Cycling TCC 
 914561A        NOV 91       Temperature Lever Slides Towards Hot Side 
 914351D        OCT 91       Air Conditioner Noise/Vibration 
 92267A         OCT 91       New A/T - Transaxle Fluid Dexron-Iie 
 91357A6E       OCT 91       Service Engine Soon Light (Code 22) - TPS 
 913877A        AUG 91       4L80-E/4L80-Ehd A/T Grunt or Squawk Noise 
 913880A        AUG 91       A/C Delco Advance Exchange Programs 
 913846E        AUG 91       Damaged and/or Misdiagnosed ECM/PCM 
 913867A        AUG 91       Delayed Shifts In Low Gear - Four Wheel Drive Mode 
 913967A        AUG 91       Evaluating Peened Spacer Plates On All A/T 
 92043B         AUG 91       Idler Arm Inspection 
 913607A        JUL 91       Harsh Double Feel or 1-2 Shift Shudder 
 913700B        JUL 91       Lubricant For Locking Differential 
 913558B        JUN 91       Inoperative 4-WD Light Code 5 
 913446E        JUN 91       State Emissions Testing Information 
 913317C        MAY 91       4-Speed Manual Experience Chatter or Shudder On Launch 
 913265         MAY 91       Aftermarket Parking Brake 
 913033E        MAY 91       Black Hub Cap Distortion 
 9133210        MAY 91       Exterior Mirror Experience Vibration/Shake 
 9133410        MAY 91       Hvlp-High Volume Low Pressure Paint Application 
 913186E        MAY 91       Incorrect Mem-Cal Installation May Damage ECM/PCM Circuit 
 912980A        MAY 91       Labor Time Guide Request For Review Updates 
 912925         MAY 91       Tech 1 - Gives Incorrect Brake Diagnostic Information 
 913131A        MAY 91       Under-Dash Heater Case Hot Spot 
 912837A        APR 91       Automatic Transmission Binding In Reverse Condition 
 912850A        APR 91       Cleaning of Upper Instrument Panel Surfaces 
 912841A        APR 91       Loose or Missing A/C Access Fitting Caps 
 912301A        MAR 91       A/C Controller Turns Compressor Off 
 912237A        MAR 91       A/T Charts and Artwork Manual Updates 
 912265         MAR 91       Modified Brake Bleeding Tool 
 912333B        MAR 91       Power Steering Squawk Noise When Turning 
 912285         MAR 91       Reading ABS Trouble Codes 
 912545         MAR 91       Rear Wheel Anti-Lock Brake Trouble Code 7 
 912356B        MAR 91       Use of Recycled Engine Coolant 
 912107A        FEB 91       4L80-E/4L80-Ehd Transmission Diagnosis Charts Manual Updated 
 911905         FEB 91       Adjustment of Height Sensing Brake Proportioning Valve 
 912125         FEB 91       Hard Brake Pedal Feel 
 911827A        FEB 91       New 4L80-E or 4L80-Ehd A/T Identification Tag 
 911867A        FEB 91       New Wave Plate Is Now Available 4L60 A/T 
 912136D        FEB 91       Parasitic Current Drain Procedure, No Start Condition 
 91928C         JAN 91       Dust Intrusion Cause Odometer Seizure 
 911508C        JAN 91       Electronic/Electro-Mechanical Instrument Cluster Exch 
 911657A        JAN 91       High Shift Effort When "Shifting On the Fly" In Cold Weather 
 911496E        JAN 91       Possible False Code 32 TCC Short-Circuit, 700-R4 Trans. 
 911733B        JAN 91       Required Higher Steering Effort On High Power Steering 
 911713E        JAN 91       Tire Damage Caused In GM Assembly 
 911335         DEC 90       Change In Brake Feel After Rotor Refinishing 
 911396C        DEC 90       Reduced Engine Performance In Warmer Climates 
 911127A        NOV 90       3-4 Clutch Plates (Steel) Are Available For 4L60 
 911268E        NOV 90       Chattering Wiper Blades 
 911066E        NOV 90       Inter. Connection In Certain Sensor or Component Connectors 
 911015         NOV 90       Introduction of Soft Codes 6, 9 and 10 
 9110310        NOV 90       Seatbelt Restraint System Change 
 ATRATB028      OCT 90       Engine Testing With A Vacuum Gauge - Auto Trans. 
 91917A         OCT 90       Initial Service and Diagnosis Training 4L80-E (MT1) 
 91803E         OCT 90       Match Mounting of Tire/Wheel Discontinued 
 91992B         OCT 90       Paint Codes, Assembly Plant ID 
 91858A         OCT 90       Procedure For Checking Connector Terminal Contact 
 91907A         OCT 90       Replacement Transmission Assembly 4L80-E/4L80-Ehd 
 DCSAM90225     AUG 90       Torque Converters Damper Springs May Fracture 
 91626B         AUG 90       Coolant Specification 
 91376          AUG 90       Engine Exchange Program 
 91353E         AUG 90       New Coated Wheel Weights For Aluminum Wheels 
 91308C         JUL 90       Panel Paint Peeling On Instrument Panel 
 91263E         JUN 90       Irregular Wear of Front Tires 
 91148A         APR 90       Checking For Parasitic Current Drain 
 ATRATB9002006  FEB 90       Automatic Transmission Fluid 
 ATRATB8930     OCT 89       Automatic Transmission Math Part 2 
 ATRATB8927     SEP 89       20 Steps To successful Auto Transmission Repair 
 892531B        SEP 89       CFC Reduction and Refrigerant Recovery Recycling 
 ATRATB8923     AUG 89       Automatic Transmission Math Formulas 
 90496B         AUG 89       Reconstituted Anti-Freeze 
 ATRATB8754     SEP 87       All Automatics - Front Bushing Wear 
 ATRATB8748     AUG 87       Metal Sealing Rings - Automatic Transmissions 
 81I37          FEB 81       Silica Contamination of Oxygen Sensors