Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- Sensors and Switches
- Sensors and Switches - Cooling System
- Sensors and Switches - Cruise Control
- Sensors and Switches - Engine
- Sensors and Switches - HVAC
- Sensors and Switches - Instrument Panel
- Sensors and Switches - Lighting and Horns
- Sensors and Switches - Powertrain Management
- Sensors and Switches - Starting and Charging
- Sensors and Switches - Transmission and Drivetrain
- Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Drive Belt
- Filters
- Hoses
- Fluids
- Brake Bleeding
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Application and ID
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 6000 MI or 9600 KM
- 12000 MI or 19200 KM
- 18000 MI or 28800 KM
- 24000 MI or 38400 KM
- 30000 MI or 48000 KM
- 36000 MI or 57600 KM
- 42000 MI or 67200 KM
- 48000 MI or 76800 KM
- 54000 MI or 86400 KM
- 60000 MI or 96000 KM
- 66000 MI or 105600 KM
- 72000 MI or 115200 KM
- 78000 MI or 124800 KM
- 84000 MI or 134400 KM
- 90000 MI or 144000 KM
- 96000 MI or 153600 KM
- 102000 MI or 163200 KM
- 108000 MI or 172800 KM
- 114000 MI or 182400 KM
- 120000 MI or 192000 KM
- Severe Service
- 3000 MI or 4800 KM
- 6000 MI or 9600 KM
- 9000 MI or 14400 KM
- 12000 MI or 19200 KM
- 15000 MI or 24000 KM
- 18000 MI or 28800 KM
- 21000 MI or 33600 KM
- 24000 MI or 38400 KM
- 27000 MI or 43200 KM
- 30000 MI or 48000 KM
- 33000 MI or 52800 KM
- 36000 MI or 57600 KM
- 39000 MI or 62400 KM
- 42000 MI or 67200 KM
- 45000 MI or 72000 KM
- 48000 MI or 76800 KM
- 51000 MI or 81600 KM
- 54000 MI or 86400 KM
- 57000 MI or 91200 KM
- 60000 MI or 96000 KM
- 63000 MI or 100800 KM
- 66000 MI or 105600 KM
- 69000 MI or 110400 KM
- 72000 MI or 115200 KM
- 75000 MI or 120000 KM
- 78000 MI or 124800 KM
- 81000 MI or 129600 KM
- 84000 MI or 134400 KM
- 87000 MI or 139200 KM
- 90000 MI or 144000 KM
- 93000 MI or 148800 KM
- 96000 MI or 153600 KM
- 99000 MI or 158400 KM
- 102000 MI or 163200 KM
- 105000 MI or 168000 KM
- 108000 MI or 172800 KM
- 111000 MI or 177600 KM
- 114000 MI or 182400 KM
- 117000 MI or 187200 KM
- 120000 MI or 192000 KM
Service and Repair
Technical Service Bulletins
- Engine, Cooling and Exhaust
- Engine
- Compression Check
- Camshaft, Lifters and Push Rods
- Cylinder Block Assembly
- Cylinder Head Assembly
- Drive Belts, Mounts, Brackets and Accessories
- Engine Lubrication
- Intake Manifold
- Lamps and Indicators - Engine
- Seals and Gaskets
- Sensors and Switches - Engine
- Timing Components
- Tune-up and Engine Performance Checks
- Water Pump
- Service and Repair
Specifications- Technical Service Bulletins
- Cooling System
- Exhaust System
- Technical Service Bulletins
- Engine
- Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Tune-up and Engine Performance Checks
- Computers and Control Systems
- Electronic Spark Control Module
- Engine Control Module
- Idle Speed/Throttle Actuator - Electronic
- Knock Sensor
- Malfunction Indicator Lamp
- Manifold Pressure/Vacuum Sensor
- Memory Calibration Unit
- Oil Pressure Sensor
- Output Driver
- Oxygen Sensor
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Throttle Position Sensor
- Vehicle Speed Sensor
- Vehicle Speed Sensor Signal Buffer
Service Precautions
Testing and Inspection
Adjustments
Diagrams- Specifications
- Technical Service Bulletins
- Emission Control Systems
- Fuel Delivery and Air Induction
- Fuel Pressure
- Fuel Pressure Release
- Idle Speed
- Accelerator Pedal
- Air Cleaner Housing
- Fuel
- Fuel Filler Cap
- Fuel Filter
- Fuel Injector
- Fuel Pressure Control Module
- Fuel Pressure Regulator
- Fuel Pump
- Fuel Return Line
- Fuel Supply Line
- Fuel Tank
- Idle Speed/Throttle Actuator - Electronic
- Relays and Modules - Fuel Delivery and Air Induction
- Sensors and Switches - Fuel Delivery and Air Induction
- Throttle Body
- Throttle Cable/Linkage
- Throttle Position Sensor
- Turbocharger
- Service Precautions
- Application and ID
Description and Operation
Locations- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
Tools and Equipment
- Ignition System
- Firing Order
- Ignition Timing
- Distributor
- Electronic Spark Control Module
- Ignition Cable
- Ignition Coil
- Ignition Control Module
- Knock Sensor
- Relays and Modules - Ignition System
- Sensors and Switches - Ignition System
- Spark Plug
- Application and ID
- Description and Operation
- Locations
- Technical Service Bulletins
- Tools and Equipment
- Transmission Control Systems
- PROM - Programmable Read Only Memory
- Service Precautions
- Locations
- Diagrams
- Technical Service Bulletins
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
- Accumulator
- Band Apply Servo
- Clutch
- Fluid - A/T
- Fluid Pressure Sensor/Switch
- Fluid Pump
- Governor
- Output Shaft
- Seals and Gaskets
- Sensors and Switches - A/T
- Shift Solenoid
- Shifter A/T
- Shift Linkage
- Shift Modulator
- Torque Converter
- Transmission Cooler
- Transmission Mode Switch
- Vacuum Regulator Valve
- Valve Body
- Application and ID
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Direct Clutch Plates Burned
- Forward Clutch Plates Burned
- Intermediate Clutch Plates Burned
- Low or High Shift Points
- Moves Forward In Neutral
- No Detent Downshifts
- No Drive In Drive Range
- No Drive In Reverse or Slips In Reverse
- No Engine Braking In Low Range
- No Engine Braking In 2nd Speed
- No Part Throttle Downshifts
- No 2-3 Shift-1ST & 2ND Only
- Noisy Transmission
- Oil Pressure High or Low
- Rough 1-2 Shift
- Rough 2-3 Shift
- Slips In All Ranges & on Starts
- Slips 1-2 Shift
- Slips 2-3 Shift
- Will Not Hold In Park
- 1-2 Shift at Full Throttle Only
- 1st Speed Only No 1-2 Shift
- Component Tests and General Diagnostics
- Locations
- Service and Repair
- Procedures
- Removal and Replacement
- Overhaul
- Disassemble
- Subassembly Service
- Assembling Gear Unit
- Low Roller Clutch
- Reaction Carrier Assembly
- Inspecting Reaction Carrier
- Reaction Carrier Pinion Gear
- Gear Unit & Output Carrier Assemblies
- Output Carrier Assembly/Pinion Gear
- Direct Clutch & Intermediate Roller
- Forward Clutch
- Intermediate Clutch Piston
- Speedo Drive Gear & Speed Sensor
- Governor Assembly
- Control Valve Assembly
- Oil Pump Assembly
- Assemble
- Diagrams
- Specifications
- Technical Service Bulletins
- Clutch
- Continuously Variable Transmission/Transaxle
- Differential Assembly
- Differential Carrier
- Differential Clutch
- Differential Axle Housing
- Fluid - Differential
- Pinion Bearing
- Pinion Gear
- Application and ID
- Specifications
- Mechanical Specifications
- Fastener Strength Identification
- Rear Axle
- Fluid Type Specifications
- Mechanical Specifications
- Technical Service Bulletins
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Manual Transmission/Transaxle
- Case
- Counter Gear
- Countershaft
- Extension Housing
- Fluid - M/T
- Mainshaft Bearing/Bushing
- Mainshaft
- Reverse Idler Gear
- Shifter M/T
- Shift Linkage
- Transmission Mount
- Application and ID
- Service and Repair
- Disassemble
- Unit Inspection and Overhaul
- Subassembly Service
- Assemble
- Diagrams
- Specifications
- Technical Service Bulletins
- Sensors and Switches - Transmission and Drivetrain
- Transfer Case
- Transmission Control Systems
- Diagrams
- Technical Service Bulletins
- Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- Brake Bleeding
- Brake Warning Indicator
- Disc Brake System
- Drum Brake System
- Hydraulic System
- Parking Brake System
- Power Brake Assist
- Service Precautions
- Testing and Inspection
- Service and Repair
- Technical Service Bulletins
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Battery
- Charging System
- Starting System
- Power and Ground Distribution
- Testing and Inspection
- Diagrams
- Specifications
- Technical Service Bulletins
- Power and Ground Distribution
- Steering and Suspension
- Heating and Air Conditioning
- Accumulator HVAC
- Air Conditioning Switch
- Air Door
- Blower Motor
- Blower Motor Switch
- Compressor HVAC
- Compressor Clutch
- Compressor Shaft Seal
- Description and Operation
- Testing and Inspection
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Compressor Fitting HVAC
- Condenser HVAC
- Control Assembly
- Evaporator Core
- Expansion Block/Orifice Tube
- Expansion Valve
- Heater Core
- High Pressure Safety Valve HVAC
- Hose/Line HVAC
- Refrigerant
- Refrigerant Oil
- Refrigerant Pressure Sensor / Switch
- Sensors and Switches - HVAC
- Service Port HVAC
- Vacuum Reservoir HVAC
- Service Precautions
- Testing and Inspection
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Restraints and Safety Systems
- Accessories and Optional Equipment
- Body and Frame
- Cruise Control
- Brake Switch (Cruise Control)
- Cruise Control Module
- Cruise Control Servo
- Cruise Control Servo Cable
- Cruise Control Switch
- Cruise Control Vacuum Vent Solenoid
- Relays and Modules - Cruise Control
- Sensors and Switches - Cruise Control
- Vacuum Vent Valve
- Description and Operation
- Testing and Inspection
- Adjustments
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Instrument Panel, Gauges and Warning Indicators
- Air Conditioning Indicator Lamp
- Audible Warning Device
- Brake Warning Indicator
- Coolant Level Indicator Lamp
- Dashboard / Instrument Panel
- Dimmer Switch
- Fuel Distance/Mileage Module
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Malfunction Indicator Lamp
- Malfunction Indicator Lamp - Power Steering
- Odometer
- Oil Level Warning Indicator
- Oil Pressure Gauge
- Oil Pressure Warning Lamp/Indicator
- Relays and Modules - Instrument Panel
- Seat Belt Reminder Lamp
- Sensors and Switches - Instrument Panel
- Speedometer Head
- Temperature Gauge
- Temperature Warning Lamp/Indicator
- Tire Monitoring System
- Transmission Shift Position Indicator Lamp
- Volt Meter Gauge
- Water In Fuel Indicator
- Description and Operation
- Testing and Inspection
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Cargo Lamp
- Courtesy Lamp
- Dimmer Switch
- Dome Lamp
- Fog/Driving Lamp
- Hazard Warning Lamps
- Headlamp
- Horn
- License Plate Lamp
- Map Light
- Marker Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Tail Lamp
- Turn Signals
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Windows and Glass
- Wiper and Washer Systems
- Wiper Blade
- Wiper Motor
- Testing and Inspection
- Chart 1 Washer Pump Inoperative
- Chart 2 Wipers Low Speed Inoperative
- Chart 3 High Speed Only, Inoperative In Low
- Chart 4 Low Speed, Pulse Delay, and Mist Modes INOP
- Chart 5 Wipers Will Not Park
- Chart 6 Wiper Will Not Shut Off
- Chart 7 Intermittent Operation, Wiper Has Both Speeds
- Chart 8 Wiper Runs But Blades Don't Move
- Technical Service Bulletins
- Application and ID
- Truck Body Identification
- Regular Production Option (RPO)
- Vehicle Identification Number (VIN)
- Description
- GM Automobile VIN Charts
- GM Light Duty & Multi-Purpose Truck VIN Charts
- 1982 Light Duty Trucks & Multi-Purpose Vehicle
- 1983 Light Duty Trucks & Multi-Purpose Vehicle
- 1984 Light Duty Trucks & Multi-Purpose Vehicle
- 1985 Light Duty Trucks & Multi-Purpose Vehicle
- 1986 Light Duty Trucks & Multi-Purpose Vehicle
- 1987 Light Duty Trucks & Multi-Purpose Vehicle
- 1988 Light Duty Trucks & Multi-Purpose Vehicle
- 1989 Light Duty Trucks & Multi-Purpose Vehicle
- 1990 Light Duty Trucks & Multi-Purpose Vehicles
- 1991 Light Duty Trucks & Multi-Purpose Vehicles
- 1992 Light Duty Trucks & Multi-Purpose Vehicles
- 1993 Light Duty Trucks & Multi-Purpose Vehicles
- 1994 Light Duty Trucks & Multi-Purpose Vehicles
- 1995 Light Duty Trucks & Multi-Purpose Vehicles
- 1996 Light Duty Trucks & Multi-Purpose Vehicles
- GM Medium & Heavy Duty Truck VIN Charts
- 1982 Medium & Heavy Duty Trucks
- 1983 Medium & Heavy Duty Trucks
- 1984 Medium & Heavy Duty Trucks
- 1985 Medium & Heavy Duty Trucks
- 1986 Medium & Heavy Duty Trucks
- 1987 Medium & Heavy Duty Trucks
- 1988 Medium & Heavy Duty Trucks
- 1989 Medium & Heavy Duty Trucks
- 1990 Medium & Heavy Duty Trucks
- 1991 Medium & Heavy Duty Trucks
- 1992 Medium & Heavy Duty Trucks
- 1993 Medium & Heavy Duty Trucks
- 1994 Medium & Heavy Duty Trucks
- Locations
- Diagrams
- Diagram Information and Instructions
- Diagnostic Aids
- Exploded Views
- Electrical Diagrams
- Cell References
- Accessories and Optional Equipment
- Brake Warning Indicator
- Cruise Control
- Heating and Air Conditioning
- Instrument Panel, Gauges and Warning Indicators
- Lighting and Horns
- Powertrain Management
- Starting and Charging
- Transmission and Drivetrain
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Connectors
- Fuse and Fusible Links
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Alignment
- Backing Plate
- Brake Drum
- Brake Rotor/Disc
- Clutch Master Cylinder
- Clutch Slave Cylinder
- Compressor HVAC
- Computers and Control Systems
- Differential Assembly
- Fastener Strength Identification
- Rear Axle
- Distributor, Ignition
- Engine
- Firing Order
- Fluid Pump, A/T
- Fuel Delivery and Air Induction
- Manual Transmission/Transaxle
- Shift Linkage, A/T
- Starting and Charging
- Universal Joint, Drive/Propeller Shaft
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
Diagnostic Trouble Codes