GM Service Manual Online
For 1990-2009 cars only

New Terms

New terms now describe how this service manual is constructed. These terms come from the Society of Automotive Engineers (SAE) Standard Practice J2008. Examples of these new terms and the previous terms are stated in the following table.

New

Old

Service Category Type (Engine)

Major Section (Engine)

Service Category (Engine Cooling and Radiator)

Sub-section (Engine Cooling and Radiator)

Construction

This service manual is constructed with the following 10 Service Category Types:

  1. General Information

  2. Heating, Ventilation, and Air Conditioning (HVAC)

  3. Steering

  4. Suspension

  5. Driveline and Axle

  6. Brakes

  7. Engine

  8. Transmission

  9. Body and Accessories

  10. Restraints

How to Find Service Categories

The starting page number of each Service Category is in the Table of Contents near the beginning of the service manual, or in the Table of Contents at the beginning of each Service Category Type.

The following table gives the previous service manual sub-sections with the name of the new service category type and service category. Almost all of the diagnosis that was in section 8A is now located in its applicable service category.

Service Manual Sub-Section to Service Category Type and Service Category Conversion Table

Old Sub-Section

Old Sub-Section

New Section

Section Name

Sub-Section Name

0A

General Information

0

General Information

General Information

0B

Maintenance and Lubrication

0

General Information

General Information

0C

Vibration Diagnosis

0

General Information

General Information

1A

Heating and Ventilation

1

HVAC

Heating and Ventilation (Non A/C)

1B

Heating, Ventilation, and Air Conditioning

1

HVAC

HVAC systems with Air Conditioning

1D1, 1D3

A/C Compressors

1

HVAC

Air Conditioning Compressors

2A

Frame and Bumpers

8

Body and Accessories

Frame and Underbody

Bumpers

3A

Front Wheel Alignment

3

Suspension

Front Wheel Alignment

3B, 3B1A, 3B1B

Power Steering Gear and Pump

2

Steering

Power Steering Systems

3B3

Steering Linkage

2

Steering

Steering Linkage

3C

Front Suspension

3

Suspension

Front Suspension

3D

Rear Suspension

3

Suspension

Rear Suspension

3E

Tires and Wheels

3

Suspension

Tires and Wheels

3F, 3F4, 3F5

Steering Columns

2

Steering

Steering Wheel and Column

4A

Propeller Shaft

4

Driveline/Axle

Propeller Shaft

4B1, 4B1A, 4B2, 4B7

Rear Axle and Differential

4

Driveline/Axle

Rear Drive Axle

4C, 4C2, 4C3

Front Drive Axles and Differential

4

Driveline/Axle

Front Drive Axle

5

Hydraulic Brakes

5

Brakes

Hydraulic Brakes

5A, 5A1

Master Cylinder

5

Brakes

Hydraulic Brakes

5B1

Front Disc Brakes

5

Brakes

Disc Brakes

5C2

Drum Brakes

5

Brakes

Drum Brakes

5D1, 5D2

Vacuum Booster

5

Brakes

Hydraulic Brakes

5E1A, 5E1B, 5E1C, 5E3

Antilock Brakes

5

Brakes

Antilock Brakes

5F

Parking Brake

5

Brakes

Parking Brake

6, 6A, 6A1, 6A2, 6A2B, 6A3, 6A4B

Engine Mechanical

6

Engine

Engine Mechanical

6B1, 6B2

Engine Cooling and Radiator

6

Engine

Engine Cooling

6C

Engine Fuel

6

Engine

Engine Controls

6D, 6D1, 6D2, 6D2A,6D3, 6D4, 6D4A, 6D4B, 6D4B1, 6D5

Engine Electrical

6

Engine

Engine Electrical

6E

Engine Emissions

6

 

Engine Controls

6F

Exhaust System

6

 

Exhaust System

7A14A, 7A14B, 7A14C, 7A14D

Automatic Transmission

7

Transmission/Transaxle

Automatic Transmission

7B, 7B6, 7B7

Manual Transmission

7

Transmission/Transaxle

Manual Transmission

7C

Clutch

7

Transmission/Transaxle

Clutch

7D, 7D1, 7D1A, 7D3, 7D5

Transfer Case

4

Driveline/Axle

Transfer Case

8B

Lighting Systems

8

Body and Accessories

Lighting Systems

8C

Instrument Panel and Gages

8

Body and Accessories

Instrumentation and Driver Information

8D

Chassis Electrical

8

 

Refer to the Index at the end of the manual.

8E1, 8E2

Wipers and Washers

8

Body and Accessories

Wiper/ Washer Systems

9A

Audio Systems

8

Body and Accessories

Entertainment

9B

Cruise Control

8

Body and Accessories

8

Body and Accessories - Cruise Control

9E

Engine Coolant Heater

6

Engine

Engine Cooling

9F

Luggage Carrier

8

Body and Accessories

Roof

9J

Supplemental Inflatable Restraint

9

Restraints

Supplemental Inflatable Restraints

9K

Remote Keyless Entry

8

Body and Accessories

Keyless Entry

10A1

Doors

8

Body and Accessories

Doors

10A2

Seats

8

9

Body and Accessories

Restraints

Seats

Seat Belts

10A3

Stationary Windows

8

Body and Accessories

Stationary Glass

10A4

Interior Trim

8

Body and Accessories

Exterior/Interior Trim

10A5

Endgate

8

Body and Accessories

Rear End

10B

Cab and Body Maintenance

  

Refer to the Index at the end of the manual.

Information Flow

With few exceptions, the information flow within a Service Category Type is as follows:

  1. Table of Contents for the entire Service Category Type
  2. Service Categories

The information within each Service Category will be ordered as follows:

    • Specifications
    • Diagnosis
    • Repair Procedures
    • General Description and System Operation
    • Special Tools

Improvements Made

This service manual provides many more illustrations than in earlier manuals. Illustrations serve as the primary source for repair procedures. These illustrations will be supplemented with text descriptions. In the previous service manuals, text was the primary source of information for repair procedures and illustrations provided support.

Repair procedures, illustrations, and the descriptive text have been arranged so that they will correspond with the way you work. This manual provides disassembled views, wherever possible, so that it will be easy to look up parts, names, and order of assembly. The text descriptions have been rewritten into simple, complete sentences.

Suggestions Welcome

Our goal is to help you to do your job more effectively. After using this manual for a time, please call in with your comments at 1-800-828-6860. In Canada, in order to speak to someone in French, please call 1-800-503-3222.