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DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1991SUBURBAN 1/2 TON 4WD V8-350 5.7LREPAIR AND DIAGNOSISTECHNICAL SERVICE BULLETINS
1991 Chevrolet Suburban 1/2 Ton 4WD V8-350 5.7L
Repair and Diagnosis: Technical Service Bulletins
1991 Chevrolet Suburban 1/2 Ton 4WD V8-350 5.7LSECTION Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Recalls
- Emissions
- Generals
- Safety
- Recall 96V226000: Seat Recliner Modification
- Recall - Bucket Seat Recliner Bolt Breakage
- Recall 94044001: CNG Fuel Tank Defect
- Recall 94V044000: CNG Fuel Tank Defect
- Recall 93V119000: Disc Brake Rotor Defect
- Recall 00V122000: Restraint System Inadequate
- Recall 93V016000: A/T Venting fluid
- Recall 93V187000: Seat Recliner Defect
- 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
- A/C - Erratic HVAC Operation & Self Diagnostic Blinks
- A/C - Low Charge Indicator Flashes
- A/T - Delayed Shifts in Low Gear in 4X4 Mode
- Engine - Overheat Diagnosis
- Engine - Overheats During Heavy Usage
- A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
- TPS - MIL ON/Code 22 Set/Driveability Concerns
- Exhaust - Smoke on Engine Start Up
- Tires - Slipping on Rim
- Tires (Front) - Irregular Wear
- Door Locks - Binding or Sticking or Key Hard to Insert
- A/T - 4L80E/4L80EHD Buzz/Vibration
- A/T - Low Power, Lack of Performance With 4L80E
- A/T - Low Power/Lack of Performance With 4L80E
- Torque Converter - Squeak Noise
- A/T - Shudder Upon Apply/Release of TCC
- Clutch Pedal - Pop or Scrape Noise When Depressed
- Fuel - Injector Wires Trapped Under Air Cleaner
- A/T - Lack of Power At Highway Speeds, 4L80E in Hot Mode
- Engine - Cold Knock, Replace Oil Filter/Bearings/PROM
- Engine - Block Heater Leaks
- Engine - Miss, Hesitation, or Roughness
- Oil Pressure Gauge - Flutters/Reads High
- Oil Pressure Gauge - Erratic Reading Concerns
- Oil Pressure Gauge - Incorrect or Erratic Readings
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Backup Lamps/Tailgate Window Release - Inoperative
- B Pillar Cab Mount Cushion Area - Rattles
- Air Bag (SIR) On-Off Switch Kits, New Parts and Service
- ECM/PCM/TCM - Intermittent Connections
- Fiber Glass Rear Fender Paint - Star Shaped Crack
- A/T - 4L60 No Reverse/Delayed Reverse
- A/T - Buzzing Noise at Idle
- Compact Disc Players - CD Changer Loading Procedures
- SIR - Operating Vehicle with Warning Light On
- A/T - Torque Converter Clutch Shutter
- A/C Control Head - Flashes, Operates Erratically
- Manual Temp Control Lever - Slips From Hot To Cold
- Drivetrain - Slow Or No Engagement of Front Axle
- Instrument Panel - Upper Surface Reflection
- Charging - Low Voltage Reading Or Dim Lights At Idle
- Fuels - Effect of Volatility on Driveability
- Paint - Identification/Repair of Colorcoat Delamination
- A/T - 4L60 Binding/Inoperative In Reverse
- A/T - High Line Pressure Instability 4L80E/4L80EHD
- A/T - 4L60/700-R4 Transmissions Stuck In First
- Locking Differential - Chattering on Turns
- A/T - No Reverse, New Rear Band 4L80E
- A/T - Double or 1-2 Shift Shudder
- P/S - Reduced Assist When Cold, New O Rings
- 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
- Labor/Parts Updates
- Recommended Repairs
- Seals, Gaskets
- Superceded Bulletins
- 10-00-89-010A - 10/19/12
- 12-06-01-008 - 09/01/12
- 04-06-01-029F - 09/01/12
- 05-06-04-022H - 07/18/12
- 04-06-04-047J - 07/18/12
- 00-03-10-006G - 07/17/12
- 03-03-10-007F - 07/12/12
- 01-08-51-003A - 11/01/2010
- 01-08-51-003 - 01/01/2010
- 08-07-30-035A - 01/01/2010
- 05-06-04-022F - 10/01/10
- 06-08-64-001 - 12/01/06
- 06-08-64-001A - 10/01/09
- 05-03-08-002 - 12/01/05
- 05-03-08-002A - 10/19/08
- 05-03-08-002B - 10/01/09
- 06-00-89-051B - 12/01/08
- 04-08-50-006 - 06/01/04
- 04-08-50-006A - 12/01/07
- 00-06-01-012A - 02/08/05
- 933E106 - 07/01/93
- 93966C - 10/01/93
- 938A95 - 07/01/93
- 9386A6C - 05/01/93
- 937A97 - 07/01/93
- 937A107 - 08/01/93
- 936A117 - 02/01/95
- 93-4A-101 - 04/01/95
- 933E67 - 06/01/93
- 933E100 - 07/01/93
- 932633E - 07/01/93
- 931B11 - 09/01/92
- 931B109 - 08/01/93
- 9310100 - 06/01/95
- 93-6-107 - 07/01/97
- 927102 - 04/01/92
- 922816C - 09/01/92
- 9210134A - 07/01/93
- 92026E - 08/01/91
- 91576E - 08/01/90
- 914518C - 11/01/91
- 913117 - 03/01/94
- 91157A6E - 09/01/91
- 911287A - 11/01/90
- 90523E - 10/01/89
- 903165 - 08/01/90
- 892717A - 10/01/89
- 87121 - 05/01/87
- 73-90-23 - 01/01/00
- 73-90-12 - 01/01/00
- 631208 - 04/01/97
- 580504A - 04/01/01
- 40-05-01C - 10/01/99
- 01-04-18-001B - 11/01/04
- 23-62-03 - 07/01/97
- 12-92-43 - 07/01/97
- 02-08-48-001 - 12/02/03
- 02-07-30-052A - 02/07/03
- 00-00-89-008B - 11/01/03
- Warranty - Expediting parts
- Warranty - Parts Returning Program
- Warranty - Expediting Parts
- Towing - Tips and Charts
- Parts - Expediting Information
- Warranty - Labor Times Guides Updated
- Warranty - Personal Property Damage
- Towing - Four Wheel Drive Trucks
- Customer Concern Not Duplicated/Verified - Labor Op.
- Electrical - Diode Replacement Information
- Wipers/Washers - Windshield Wiper Maintenance/Cleaning
- Wipers - Performance/Cleaning Instructions/Maintenance
- Windshield Wipers - Performance/Cleaning and Maintenance
- Windows/Glass - Urethane Adhesive Usage
- Glass/Body - Windshield Wiper Performance
- Body - Distortion On Outer Glass Surfaces
- Lighting - Headlamp Polycarbonate Lens Damage Prevention
- Lighting - Headlamp Polycarbonate Lens Damage Prevention
- Lighting - Lamp Polycarbonate Lens Damage Prevention
- Odometer/Speedometer - Repair Facilities
- Body - Paint-Less Dent Repair Recommendations
- Body - Application of Anti-Corrosion Materials
- Body - Metal Body Panel Corrosion Protection
- Body - Hem Flange Sealer For Corrosion Protection
- Body - Metal Body Panel Corrosion Protection
- Body - Metal Panel Corrosion Protection
- Body - Hem Flange Repair
- Body - Paint-less Dent Repair Process
- Paint - Service Procedures For Repair
- Weatherstrips - Use of Silicone Grease for Maintenance
- Seats - Top Tether Hardware Package for Child Restraints
- Interior - Seat Cover Wrinkle/Crease/Burn Info
- Interior - Seat Cover Wrinkle/Crease/Crack/Burn Info.
- Paint - Etching/Staining
- Paint - Identification & Repair of Color Coat
- Mirrors - Heated Mirror Defrosting Time
- Locks - Key Code Security Rules And Information
- Locks - Key Code Securtiy Rules And Information
- Locks - Binding/Sticking Door Lock Cylinders
- Fiber Glass Rear Fender Paint - Star Shaped Cracks
- Body - Exterior Emblem Discoloration/Blistering/Peeling
- Body - Side Window Chipping Information
- Body - Vehicle Glass Distortion Information
- Body - Use of Silicone for Weatherstrip Maintenance
- Body - TPO Fascia Cleaning Prior to Painting
- Audio System - Noise When Using Portable Playback Unit
- Audio System -Noise When Using Portable Playback Unit
- Policy - Procedure to Handle Customer Radio Concerns
- Audio - Radio Frequency Interference (RFI) Diagnosis
- Cellular Phones - Operating Characteristics
- Restraints - Availability of Seat Belt Extenders
- Restraints - Seat Belt Warning Lamp On/Buckling Issues
- Restraints - Seat Belt Warning Lamp On/Buckling Issues
- Restraints - Seat Belt Operating Characteristic
- Seat Belts - Seat Belt Extender Availability
- Restraints - Child Seat Top Teather Attachment Kits
- Child Restraint - Top Tether Hardware Package
- Restraints - Driver/Passenger Seat Head Rest Information
- Restraints - Driver/Passenger Seat Head Rest Information
- Restraints - Passenger Presence System Information
- SRS - Front Passenger Seat Alteration Precautions
- Restraints - Passenger Presence System Information
- Restraints - Passenger Presence System Information
- SRS - Occupant Sensing System Precautions
- Airbags - Disconnect Procedures
- A/C - Broken Rear Window Defogger Grid Detection
- Interior - Elimination Of Unwanted Odors
- Interior - Elimination Of Unwanted Odors
- Interior, A/C - Vehicle Odor Elimination
- Tools - A/C Leak Detector Kit Maintenance
- Interior - Eliminating Unwanted Odors
- Interior - New Odor Elimination Product
- Suspension - Shock Absorber/Strut Fluid Leak Information
- Suspension - Shock Absorber/Strut Leakage Information
- Power Steering - Noise
- Charging System - Low Voltage Display/Low/Dead Battery
- Vehicle - AC Delco Locator Service Electronics Exchange
- Electrical - Information For Electrical Ground Repair
- Electrical - Information For Electrical Ground Repair
- Electrical - Information For Electrical Ground Repair
- Electrical - Information For Electrical Ground Repair
- Audio System - Portable Audio Equipment Noise
- Locks - KeyCode Security Rules and Information
- Locks - Key Code Security Rules and Information
- Locks - Key Code Security Rules and Information (CANADA)
- Charging System - Lights Dim/Low Voltage Display
- Charging System - Operational Characteristics
- Charging System - Low Voltage Display ON/Dim Lights
- Charging - Low Voltage Reading or Dim Lights at Idle
- Electrical - Battery Charging Tips
- Battery - Charging/Information Tips
- Battery - Charging Tips
- Tools - New Battery Tester
- Drivetrain - Clunk Noise Shifting From PARK Into Gear
- A/T - DEXRON(R)-VI Fluid Information
- Drivetrain - Clunk Noise Shifting From PARK Into Gear
- Drivetrain - Driveline Clunk Information
- 4WD/AWD Systems - Driveline Operating Characteristics
- AWD/4WD System - Driveline Operating Characteristics
- Drivetrain - Normal Clunk Shifting Between 'D' & 'R'
- Drivetrain - AWD/4WD Driveline Characteristics
- Drivetrain - Driveline Clunk Explanation
- Driveline - Clunk Noises
- Driveline - Clunk Noise When Shifting
- Towing - Recreational Towing of Four Wheel Drive Trucks
- Manual Transmission - M/T Operating Characteristics
- M/T - Operating Characteristics
- M/T - Operating Characteristics of Manual Transmissions
- M/T - Normal Operating Characteristics
- Driveline - Clunk
- Driveline - Noise Operating In Four Wheel Drive
- Driveline - Clunk When Shifting Certain Gears
- Drivetrain - Axle Lubricant Recommended
- A/T - Clunk When Shifting From PARK/DRIVE/REVERSE
- Driveline - Clunk Explanation
- Automatic Transmission - Service Procedure Change
- A/T - Service Procedure
- A/T - Fluid Oil Cooler Flush
- A/T - Fluid Oil Cooler Flush
- Automatic Transmission - Fluid Cooler Flushing
- A/T - Oil Cooler Flushing Tool/Procedure
- A/T - Oil Cooler Flushing and Flow Check Procedures
- A/T - Oil Cooler Flushing/Flow Check
- A/T - External Oil Coolers
- A/T - Torque Converter Replacement Guidelines
- A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise
- A/T - Click/Whine In Third/Fourth Gear
- A/T - Cracked or Broken Case Diagnosis
- A/T - Cracked/Broken Case Diagnosis
- A/T - New Shift Solenoid Assemblies
- A/T - Low Power, Lack of Performance
- Fuel System 'TOP TIER' Detergent Gasoline Information
- Fuel System - GM Fuel System Treatment PLUS(R) Info.
- Fuel System - Maintenance Cleaning of Fuel Injectors
- Fuel System - 'TOP TIER' Detergent Gasoline Information
- Fuel System - TOP TIER Detergent Gasoline (Canada)
- Fuel System - TOP TIER Gasoline Usage (Canada)
- Fuel System - TOP TIER Detergent Gasoline Usage
- Fuel System - TOP TIER Detergent Gasoline
- Fuel System - GM Fuel System Treatment Plus(R)
- Fuel System - TOP TIER Gasoline Information (Canada)
- Fuel System - TOP TIER Gasoline Information
- Fuel System - E85 Fuel Usage Information
- Fuel System - TOP TIER Gasoline Usage Recommendations
- Fuel System - Fuel System Treatment PLUS(R)
- Engine Controls - Aftermarket Accessory Usage
- Engine Control - MIL ON/Driveability/No Upshifts
- A/T - Firm/Harsh Shift
- Engine Controls - Aftermarket Accessory Usage
- Engine Controls - Aftermarket Accessory Usage
- Cooling System - Approved Coolant Recycling Processes
- Cooling System - Aluminum Radiator/Heater Core Info.
- A/C - Servicing of Aluminum Heater Cores/Radiators
- A/C - Aluminum Heater Core and/or Radiator Replacements
- Vehicle - Engine Crankcase and Subsystems Flushing Info.
- Vehicle - Engine Crankcase and Subsystems Flushing Info.
- Vehicle - Engine/Subsystem Flushing Recommendations
- Engine - Use of 'Surface Conditioning Disks'
- Engine - Crankcase Flushing Information
- Engine - Sealant Usage/procedures
- Engine - Surface Conditioning Disc Usage Prohibition
- Engine - Sealant Usage Recommendations
- Gasket Surfaces - Use of Surface Conditioning Discs
- Engine - Cold Knock (Update)
- Engine - Intake Manifold Inspection/Replacement
- Intake Manifold - Inspect/Replace After Engine Damage
- Engine - Use of Wacker T-330 RTV Sealant
- Engine/Fuel - Additive Information
- Manual Transmission - Operating Characteristics
- Fuel System - Fuel Injector Maintenance Cleaning
- Aluminum Wheel - Refinishing
- Chrome Wheels - Chemical Staining Precautions
- Aluminum Wheel - Refinishing Recommendations
- Chrome Wheels - Chemical Staining
- Aluminum Wheels - Low Tire Pressure Condition
- Wheels/Tires - Slow Leaks From Aluminum Wheels
- Wheels - Aluminum Wheel Refinishing Recommendations
- Tires - Puncture Repair Guidelines/Procedures
- Tires - Puncture Repair Procedure
- Oil Filters - Revised Anti-Drainback Valves
- Tires/Wheels - Low Tire Pressure With Aluminum Wheels
- Tires/Wheels - Nitrogen Gas Usage for Filling Tires
- Wheels Chrome Wheel Chemical Staining/Pitting/Corrosion
- Wheels - Changing Procedures/Precautions
- Wheels - Pitting/Brake Dust On Chrome Wheels
- Tires - Original Equipment Tire Characteristics
- Tires - Inflation Pressure Information
- Tires - Tread Puncture Repair Procedures
- Tires - Radial Force Variation (RFV) Information
- Wheel Alignment - Recommendations/Requirements
- Tires - Proper Tire Pressure Information
- Tires - Proper Inflation Pressure Information
- Wheels/Tires - 'Upsized' Wheel And Tire Information
- Tires - Proper Inflation Pressure Info.
- Engine - Noise Damage Caused By The Oil Filter
- Engine - Internal Noise/Damage After Oil Filter Change
- Tires - Information on Proper Tire Pressure
- Wheel/Tire - Upsized Wheel/Tire Performance Info.
- Tires/Wheels - Vibration/Balance/Shake/Flat Spotting
- Tires/Wheels - Tire Inflation Pressure Information
- Tires - (RFV) Radial Force Variation Information
- Tires - Tire Puncture Repair Procedures
- Tires - Nitrogen Gas Usage
- Wheels/Tires - Changing Tire and Wheel Assemblies
- Wheels/Tires -Low Tire Pressure
- Engine - Accessory Drive Belt Noise Diagnostics/Tool
- Wheels/Tires - Accessory Wheel/Tire Mounting/Balancing
- Wheels/Tires - Chrome or Chrome Plated Steel Valve Caps
- Alignment - Specifications/Requirements/Recommendations
- Tires - Radial Force Variation (RFV) Info.
- Tire - Use Of Nitrogen Gas In Tires
- Tires - Correct Inflation Pressure Information
- Wheels/Tires - Original Equipment Characteristics
- Wheels/Tires - Tire Puncture Repair Procedures
- Wheels/Tires - Low Tire Pressure
- Wheels/Tires - OE Tire/Wheel Characteristics
- Wheels/Tires - Low Tire Pressure/Aluminum Wheels Leak
- Wheel - Refinishing Aluminum Wheels
- Tires - Tire Radial Force Variation (RFV)
- Wheels - Chrome Wheel Staining/Pitting/Corrosion
- Wheels/Tires - Use of Nitrogen Gas in Tires
- Wheels/Tires - Tire Radial Force Variation (RFV)
- Wheels - Chrome Wheel Staining/Pitting/Corrosion
- Tires/Wheels - Information on Tire Radial Force Variation (RFV)
- Vehicle - Recreational Dinghy Towing
- Vehicle - 'Dinghy' Towing
- Vehicle - Precautions When Towing
- Recreational Vehicle - (Dinghy) Towing
- Engine Coolant - Approved Recycle Systems
- Engine - Knock on Cold Start Up After 8 Hour Park
- A/T - Fluid Cooler Flushing
- Coolant - Current Information on Propylene Glycol Blend
- Coolant - Use of Propylene Glycol Based Blend
- Engine Coolant - Information
- Cooling System - Coolant Information
- Cooling System - DEX-COOL(R) Coolant Usage Information
- Cooling System - DEX-COOL(R) Coolant Information
- A/T - DEXRON III(R) (H-Revision) Specification Upgrade
- A/T - DEXRON VI Release/Applications
- A/T - DEXRON(R) VI Fluid Availability
- Rear Axle - Lubricant Compatibility
- Engine - Unnecessary Flushing Services
- A/T - DEXRON-VI(R) Fluid Availability
- Engine - GM Dexos 1(R) and Dexos 2(R) Oil Specifications
- Spark Plugs - New Design
- 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
- Restraints - Child Seat Top Tether Attachment Kits
- Power Steering - Fluid Leaks Due to Extreme Low Temps
- Restraints - Passenger Presence System Information
- 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
- 91-C-33 - 11/01/96
- 91-C-19 - 11/01/96
- 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 - Labor Time Guide Update
- Warranty - Request for Wholesale Authorization
- Warranty Inquiry System
- Customer Concern Not Duplicated /Verified - Labor
- 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 - Labor Time Guide Addition
- Warranty - Required Claim Submission Procedures
- Warranty - Repair and Claims Procedures
- Overview
- Certified Dealer Service Management empower./repair approval
- Customer Satisfaction
- Dealer Repair Options
- Coverage Guidelines/GM Certified Used Vehicle Coverage
- Warranty Coverage - Cause of Failure
- GM Certified Used Vehicle Warranty Verification
- Warranty Administration
- Courtesy Transportation
- Campaigns
- Dealer Reimbursement Guidelines (Warranty Claims Submission)
- Customer Reimbursements
- Warranty Repairs on Used Vehicles In Inventory
- Reconditioning
- Inspection and Warranty Repairs
- Buy-Back Vehicles
- Diesel Engine Repairs/Deductible
- Corrosion Protection and Emissions Warranties
- U.S. Touring Owner Service
- Vehicle - Use of a Diagnostic Worksheet
- Warranty Information Letters - Release Index
- GM Campaign Identification Label
- ADCSM Empowerment Parameters - Retail Matrix
- Vehicle - AC Delco Locator Service, Electronics Exchange
- Electrical - Piercing Wire Insulation During Diagnosis
- Campaign - Product Bulletin Numbering System
- Parts - Expediting Procedures
- Glass - Adhesive Caulking Kit Revisions
- I/M 240 Repairs - Obtaining Technical Assistance
- Fuel System - Factors That Affect Economy/Mileage
- 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
- Tools - A/C Leak Detector Maintenance Kit Availability
- A/C - Low Charge Indicator Flashes
- A/C - Insufficient Cooling Diagnosis Table Updated
- 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
- Tools - Power Steering Bleeder Adapter
- A/T - Delayed Shifts in Low Gear in 4X4 Mode
- Engines - ACDelco Remanufactured
- Engine - Surface Conditioning Discs Precautions
- Engine - AC Delco Remanufactured Engines
- Engine - Overheat Diagnosis
- Engine - Overheats During Heavy Usage
- A/T - Intermittent Slip, Downshift, or Busy Cycling TCC
- Recall - TPS Inspection Replacement
- TPS - MIL ON/Code 22 Set/Driveability Concerns
- Steering - System Bleed Procedures
- Spark Plugs - Revised
- A/C - New Compressor Sealing Washer
- A/C - Missing Washers From Replacement Compressors
- A/C Shaft Nut - Removal (Elimination) From Compressor
- A/C - Shaft Nut Removal from the HR6HE Compressor
- A/C Compressor Seal Washer - Reference Chart
- Suspension - Shock Absorber/Strut Replacement Guidlines
- Tools - Adjuster Locknut Wrench
- Exhaust - Smoke on Engine Start Up
- A/T - Intermittent Downshift/Slip/Cycling Diagnosis
- Cooling - Radiator Repair/Replacement Guidelines
- Engine - Use of Wacker RTV Sealant for Intake Manifold
- 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
- Aluminum Wheels - Refinishing
- Warranty - Guidelines for Using E0420 Wheel Replace
- Warranty - OE Chrome Plated Aluminum Wheel ID
- Tires - Slipping on Rim
- Tires (Front) - Irregular Wear
- Tire - Tread Chunking/Torn bead
- Tires - Manufacturers' Assistance
- Tires - Speed Rated Information
- Rear Suspension - Service Manual Revision
- Door Locks - Binding or Sticking or Key Hard to Insert
- Leather Seat Covers - Cleaning Procedure
- Recall 96V226000: Seat Recliner Modification
- Recall - Bucket Seat Recliner Bolt Breakage
- Differential Pinion Shaft Lock Screw - Service
- A/T TCC - MIL ON/False Code 32 Set Diagnostics
- A/T - 4L80E/4L80EHD Buzz/Vibration
- A/T - Loss of Drive in All Ranges
- A/T - 2004R/700R4 Oil Pump & Slide Service
- A/T - Cooler Replacement/Flushing
- A/T - External Oil Cooler Kits
- A/T - Oil Cooler Flushing Frequently Asked Questions
- A/T - Shift Solenoid Update
- A/T - Low Power, Lack of Performance With 4L80E
- A/T - Low Power/Lack of Performance With 4L80E
- Campaign - Torque Converter Replacement
- Torque Converter - Squeak Noise
- A/T - Shudder Upon Apply/Release of TCC
- M/T - Clutch Pilot Bushing and Bearings
- Clutch Pedal - Pop or Scrape Noise When Depressed
- Slip Yoke/U-Joint - Replacement and Servicing
- Tools - Introduction Of The Fuel Injector Tester
- Fuel - Injector Wires Trapped Under Air Cleaner
- ECM/PCM - Damaged and/or Misdiagnosed
- ECM/PCM - Damage Prevention
- Oxygen Sensors - Silica Contamination
- Front Wheel Driveshaft Boot - Damage Prevention
- Brakes - ECU Software Improvement
- 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
- Battery - Testing Equipment Explained
- Tools - Released for CS Generator Diagnosis
- A/T - Lack of Power At Highway Speeds, 4L80E in Hot Mode
- PROM - Hot Restart Driveaway Sag/Low Power
- Engine - Cold Knock
- Engine - Cold Knock, Replace Oil Filter/Bearings/PROM
- PROM - Powertrain Control Module Reprogramming
- Recall 94044001: CNG Fuel Tank Defect
- Recall 94V044000: CNG Fuel Tank Defect
- Audio - Radio Frequency Interference (RFI) Diagnosis/ID
- Radio Telephone/Mobile Radio - Install/Troubleshooting
- Seatbelts - Comfort Set Feature Elimination
- Seat Belt - Operations/Features and Location
- IP Dimmer Control - Proper Setting
- Oil Filters - Enhanced Anti-Drainback Valves
- Brakes - Change In Brake Feel After Rotor Refinishing
- Brakes - Rotor & Hub Flange Cleaning Tool Revision
- Recall 93V119000: Disc Brake Rotor Defect
- A/C - Refrigerant Loss Prevention
- Engine - Block Heater Leaks
- Engine - Miss, Hesitation, or Roughness
- Oil Pressure Gauge - Flutters/Reads High
- Oil Pressure Gauge - Erratic Reading Concerns
- Oil Pressure Gauge - Incorrect or Erratic Readings
- Odometer/Speedometer - ACDelco Service Center Locations
- Headlamp Lens - Distortion Caused by Aiming Equipment
- Backup Lamps/Tailgate Window Release - Inoperative
- Cooling - New Style Hose Clamp
- Crankshaft Balancer - Removal/Installation Tool
- ABS - Reading Trouble Codes
- Rear Wheel Anti-Lock Brakes - Trouble Code 7
- Anti-Lock Brake - Aftermarket Products Usage Precaution
- Brakes - Four Wheel Antilock Brake System Manual Update
- Brakes - Kelsey-Hayes 4WAL/RWAL Assistance Program
- Tech 1 - Gives Incorrect Brake Diagnostic Information
- Brakes - Revised 4WAL DTC 61, 62 and 63
- B Pillar Cab Mount Cushion Area - Rattles
- Paint - Repair of Delamination from ELPO Primer
- Body - Sealer Tape For Collision Repairs
- SIR DTC 24 Diagnosis
- Air Bag (SIR) On-Off Switch Kits, New Parts and Service
- Recall 00V122000: Restraint System Inadequate
- Airbags - Frontal (SIR) ON-Off Switch Kits, Parts/Procs
- Restraints - Air Bag System Diagnostics
- 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
- Warranty - Guidelines for I/M 240 Labor
- EVAP System - Service of Connectors
- ECM/PCM/TCM - Intermittent Connections
- Oxygen Sensor Test - Revised Tech 1 Mass Storage CD
- PCM - Returned Product Feedback Program
- Doors - Trim Panel Removal Service Manual Revised
- Child Restraint - Auxiliary Seat Belt
- Windshield - Two-Part Urethane Adhesive For Installation
- Warranty - Guidelines for Claiming Windshield Replace
- New Windshield/Glass Urethane Adhesive Caulking Kit
- Wiper Blades - Chattering on Windshield
- Rearview Mirror, Outside - Lens Replacement Revised
- Fiber Glass Rear Fender Paint - Star Shaped Crack
- Cooling System - Reconstituted Anti-Freeze Information
- Coolant - Information on Propylene Glycol Usage
- Coolant - Specification/Usage
- Cooling System - Use of Recycled Engine Coolant
- A/T - 4L60 Steel 3-4 Clutch Plate Availability
- A/T - New Wave Plate Now Available
- A/T - 4L60 No Reverse/Delayed Reverse
- A/T - Charts and Artwork Manual Updates
- A/T - Buzzing Noise at Idle
- A/T - Fluid Leaks Through Connector
- A/T - New 4L80-E or 4L80-EHD Identification Tag
- A/T - Precautions on Wiring Harness
- A/T - 4L80-E Initial Service and Diagnosis Training
- Recall 93V016000: A/T Venting fluid
- A/T - New Solenoid Testing Kit
- A/T - Core Return Product Feedback Form
- A/T - Dexron IIE Preferred Fluid for All Hydra-matic
- A/T - 700R4 New Auxiliary Accumulator Valve Body
- A/T - Torque Converter Identification
- A/T - Harsh Reverse Engagements
- A/T - Engine Vacuum Testing
- A/T - 700R4 No 4th, Late 4th, Falls Out Of 4th
- 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 - Valve Body Assembly 700-R4 Inspection
- A/T - How To Use A Pressure Gauge
- A/T - 4L80E Electrical Diagnosis
- A/T - 700R4 Valve Body Interchange
- A/T - 4L80E Binds In Lo/Starts in 3rd Gear
- A/T - Intermittent Electrical Problems
- A/T - 700R4 Bind In Reverse After Rebuild
- A/T - 4L80E Buzzing Noise
- A/T - 4L80E New Design Wiring Harness
- A/T - 4L80E Multiple/Intermittent Trouble Codes
- A/T - 4L80E No Upshift
- A/T - 200/200C/200R4, 325/3254L, 700-R4 No 2nd Gear
- A/T - THM Late or No Upshifts
- A/T - 4L80E Binds In Manual Low1
- A/T - 4L80E No or Low Line Rise
- A/T - Failsafe Modes
- A/T - 700R4 Shifts In Manual Low
- A/T - 700R4, 2004R No Line Pressure Rise
- A/T - No Line Pressure/Uncontrollable High Pressure
- A/T - 700R4 Forward Sprag Design
- A/T - 4L60/700R4 Rear Planet Failure/Lack Of Lube
- A/T - 700R4 Missing Reverse Checkball
- A/T - 4L80E High Line Pressure/Broken Drum Cracked Case
- A/T - 700R4 Rear Planet Failure/Lack of Lube
- A/T - 700R4 No 2nd, No 4th and No TCC
- A/T - No Shift/Scanner Reports Shifting
- A/T - 4L80E Neutral Feel On 3-4 Upshift
- A/T - Delayed Forward Engagement/Burnt 3-4 Clutches
- A/T - 4L60-E/4L8O-E PCM Application Information
- 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, 200C/200 4R, 700 R4 Hidden Residue Build Up
- A/T - 700R4 Low And Reverse Clutch Failure
- A/T - Slipping or No-Shift/Metal Sealing Rings
- A/T - Front Bushing Wear
- A/T - Math Formulas Part I
- A/T - Twenty Steps To Successful Repairs
- A/T - 4L60/THM 700R4 200R4 Fluid Filter Seal
- A/T - Math Part II
- A/T - Choosing the Right ATF
- Compact Disc Players - CD Changer Loading Procedures
- SIR - Operating Vehicle with Warning Light On
- Engine - Serpentine Belt Squeak/Chirp or Premature Wear
- A/T - New Trans Fluid, Dexron IIE
- A/T - DEXRON III Fluid Introduction
- A/T - 4L80-E/4L80-EHD Diagnostic Charts Update
- A/T - Torque Converter Clutch Shutter
- A/C Control Head - Flashes, Operates Erratically
- Manual Temp Control Lever - Slips From Hot To Cold
- Isolation Diodes - Replacement Information
- Drivetrain - Slow Or No Engagement of Front Axle
- PROM/MEMCAL - Identification Marks
- Instrument Panel - Upper Surface Reflection
- Instrument Panel - Upper Surface Cleaning
- Instrument Panel - Paint Peeling Prevention
- Suspension - Chassis Lubrication Importance
- Engine - New Prelube Tool
- Charging - Low Voltage Reading Or Dim Lights At Idle
- 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 - Match Mounting Discontinued
- Tires/Wheels - Wheel Weight Usage Precautions
- Seat Belt System - Collision Replacement Guidelines
- Body - Urethane Adhesives for Glass Applications
- Key Code - Information
- Key/Key Number/Security Chip - Replacement
- Entertainment Systems - Correct Labor 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 - Codes/Assembly Plant Identification
- Paint - Identification/Repair of Colorcoat Delamination
- Warranty - Rail Dust Removal & Chemical Spotting Labor
- Electrical Connectors - Service Procedure
- A/T - Holley Variable Pressure Control Solenoid
- A/T - 4L60 Binding/Inoperative In Reverse
- A/T - High Line Pressure Instability 4L80E/4L80EHD
- A/T - Evaluating Peened Spacer Plates
- A/T - 700R4 Valve Body Modification
- A/T - 4L60/700-R4 Transmissions Stuck In First
- Locking Differential - Chattering on Turns
- Drivetrain - Recommended Axle Lubricant
- Drivetrain - Rear Axle Lubricant Compatibility & Usage
- A/T - No Reverse, New Rear Band 4L80E
- A/T - Double or 1-2 Shift Shudder
- A/T - 1-2 Accumulator Piston/Outer Spring Replacement
- A/T - New Center Support Bolt Service Package
- A/T - Cracked Case Diagnosis
- Recall 93V187000: Seat Recliner Defect
- Tools - Keyless Entry Transmitter Tester
- A/C - Use of Alternate Refrigerants In CFC 12
- 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
- P/S - Reduced Assist When Cold, New O Rings
- Sunshade - Replacement Availability
- P/S - Reduced Assist When Cold
- Brake Pressure Modulator Valve - Bleed Procedure
- Fuel - Reformulated/Oxygenated Gasolines
- Brakes - Modified Brake Bleeding Tool
- Drivetrain - Updated Transfer Case Speed Sensor Conn.
- 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
- Electrical - Battery Charging Tips/Recommendations
- 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
- Charging System - Low Voltage Display/Battery Discharged
- 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
- Mirrors - Heated Mirrors, Defrosting Time
- 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
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.