Repair and Diagnosis
- Relays and Modules
- Sensors and Switches
- Sensors and Switches - Brakes and Traction Control
- 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 - Restraints and Safety Systems
- Sensors and Switches - Starting and Charging
- Sensors and Switches - Steering and Suspension
- Sensors and Switches - Transmission and Drivetrain
- Sensors and Switches - Wiper and Washer Systems
- Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Timing Belt
- Timing Component Alignment Marks
- Drive Belt
- Filters
- Hoses
- Fluids
- Brake Bleeding
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Towing Information
- Application and ID
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 5000 MI or 8000 KM
- 10000 MI or 16000 KM
- 15000 MI or 24000 KM
- 20000 MI or 32000 KM
- 25000 MI or 40000 KM
- 30000 MI or 48000 KM
- 35000 MI or 56000 KM
- 40000 MI or 64000 KM
- 45000 MI or 72000 KM
- 50000 MI or 80000 KM
- 55000 MI or 88000 KM
- 60000 MI or 96000 KM
- 65000 MI or 104000 KM
- 70000 MI or 112000 KM
- 75000 MI or 120000 KM
- 80000 MI or 128000 KM
- 85000 MI or 136000 KM
- 90000 MI or 144000 KM
- 95000 MI or 152000 KM
- 100000 MI or 160000 KM
- 105000 MI or 168000 KM
- 110000 MI or 176000 KM
- 115000 MI or 184000 KM
- 120000 MI or 192000 KM
- Severe Service
- 2500 MI or 4000 KM
- 5000 MI or 8000 KM
- 7500 MI or 12000 KM
- 10000 MI or 16000 KM
- 12500 MI or 20000 KM
- 15000 MI or 24000 KM
- 17500 MI or 28000 KM
- 20000 MI or 32000 KM
- 22500 MI or 36000 KM
- 25000 MI or 40000 KM
- 27500 MI or 44000 KM
- 30000 MI or 48000 KM
- 32500 MI or 52000 KM
- 35000 MI or 56000 KM
- 37500 MI or 60000 KM
- 40000 MI or 64000 KM
- 42500 MI or 68000 KM
- 45000 MI or 72000 KM
- 47500 MI or 76000 KM
- 50000 MI or 80000 KM
- 52500 MI or 84000 KM
- 55000 MI or 88000 KM
- 57500 MI or 92000 KM
- 60000 MI or 96000 KM
- 62500 MI or 100000 KM
- 65000 MI or 104000 KM
- 67500 MI or 108000 KM
- 70000 MI or 112000 KM
- 72500 MI or 116000 KM
- 75000 MI or 120000 KM
- 77500 MI or 124000 KM
- 80000 MI or 128000 KM
- 82500 MI or 132000 KM
- 85000 MI or 136000 KM
- 87500 MI or 140000 KM
- 90000 MI or 144000 KM
- 92500 MI or 148000 KM
- 95000 MI or 152000 KM
- 97500 MI or 156000 KM
- 100000 MI or 160000 KM
- 102500 MI or 164000 KM
- 105000 MI or 168000 KM
- 107500 MI or 172000 KM
- 110000 MI or 176000 KM
- 112500 MI or 180000 KM
- 115000 MI or 184000 KM
- 117500 MI or 188000 KM
- 120000 MI or 192000 KM
Service and Repair
Specifications
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
Testing and Inspection- Service and Repair
- Technical Service Bulletins
- Cooling System
- Coolant
- Coolant Level Indicator Lamp
- Radiator Cooling Fan
- Engine - Coolant Temperature Sensor/Switch
- Heater Core
- Lamps and Indicators - Cooling System
- Radiator
- Radiator Cap
- Relays and Modules - Cooling System
- Sensors and Switches - Cooling System
- Temperature Gauge
- Temperature Warning Lamp/Indicator
- Thermostat
- Water Pump
- Specifications
- Technical Service Bulletins
- 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
- Barometric Pressure Switch
- Cold Advance Solenoid
- Engine Control Module
- Idle Speed/Throttle Actuator - Mechanical
- Idle Up Control Valve
- Malfunction Indicator Lamp
- Manifold Pressure/Vacuum Sensor
- Memory Calibration Unit
- Mixture Control Solenoid
- Oil Pressure Sensor
- Oxygen Sensor
- Power Steering Pressure Switch
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Tach Filter
- Throttle Position Sensor
- Throttle Position Switch
- Vehicle Speed Sensor
Service Precautions- Testing and Inspection
Adjustments
Locations
Diagrams- Specifications
- Technical Service Bulletins
- Emission Control Systems
- Air Injection
- Catalytic Converter
- Early Fuel Evaporation ( EFE )
- Evaporative Emissions System
- Exhaust Gas Recirculation
- Positive Crankcase Ventilation
- Relays and Modules - Emission Control Systems
- Sensors and Switches - Emission Control Systems
- Thermostatic Air Cleaner
- Diagrams
- Technical Service Bulletins
- Fuel Delivery and Air Induction
- Fuel Pressure
- Idle Speed
- Air Cleaner Housing
- Carburetor
- Diesel MFI Pump
- Fuel
- Fuel Filter
- Fuel Heater
- Fuel Injector
- Fuel Pump
- Fuel Return Line
- Fuel Shut-off Solenoid
- Fuel Supply Line
- Fuel Tank
- Fuel Tank Unit
- Idle Speed/Throttle Actuator - Mechanical
- Idle Up Control Valve
- Sensors and Switches - Fuel Delivery and Air Induction
- Thermo Time Switch
- Throttle Position Sensor
- Throttle Position Switch
- Turbocharger
- Diagrams
- Specifications
- Technical Service Bulletins
- Ignition System
- Glow Plug System
- Transmission Control Systems
- PROM - Programmable Read Only Memory
- Service Precautions
- Application and ID
- Diagrams
- Technical Service Bulletins
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
- Band Apply Servo
- Bell Housing
- Case
- Clutch
- Extension Housing
- Fluid - A/T
- Fluid Line/Hose
- Fluid Pan
- Fluid Pressure Sensor/Switch
- Fluid Pump
- Governor
- Output Shaft
- Output Shaft Bearing/Bushing
- Parking Pawl
- Seals and Gaskets
- Sensors and Switches - A/T
- Shifter A/T
- Shift Linkage
- Shift Modulator
- Throttle Valve Cable/Linkage
- Torque Converter
- Torque Converter Clutch
- Torque Converter Clutch Solenoid
- Transmission Cooler
- Transmission Mount
- Transmission Pressure Test Port
- Valve Body
- Application and ID
Description and Operation- Testing and Inspection
- Symptom Related Diagnostic Procedures
- Delayed Engagement
- Drive In D, L2 & L1 But Not In R
- Drive In L1 & R But Not In D or L2
- Drive In Neutral Position
- Drive In R But Not In D, L2 or L1
- Drive In 1ST Gear of D or L2
- Engine Flare on High Speed Forced Downshift
- Excessive Noises In All Drive Ranges
- Fluid Coming Out of Filler Tube
- Hard Disengagement From Park Position
- Harsh Engagement
- Harsh 1-2 Shift
- Harsh 2-3 Detent Downshift at High Vehicle Speeds
- Harsh 2-3 Shift
- Harsh 3-2 Coast Downshift
- High Oil Pressure
- Immediate Downshift After Full Throttle Upshift & Releasing Acc.
- Low Fluid Level
- Low Oil Pressure
- No Drive
- No Drive When Shifting From P to D, L2 or L1
- No Engine Braking In L1
- No Engine Braking In L2
- No Forced Downshifts
- No Park
- No Part Throttle 3-2 Downshift at Low Speeds
- No 1-2 Upshift In D & L2
- No 2-3 Upshift In D
- Screeching Noise on Acceleration
- Short Vibrating Hissing Noise Before 1-2 Upshift
- Shudder on Acceleration
- Slipping 1-2 Upshift
- Slipping 2-3 Upshift
- Transmission Downshifts at High Vehicle Speeds
- Upshift In D & L2 Only at Full Throttle
- Upshift In D or L2 Only at Part Throttle No Detent Upshift
- Component Tests and General Diagnostics
- Symptom Related Diagnostic Procedures
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Clutch
- Continuously Variable Transmission/Transaxle
- Differential Assembly
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Manual Transmission/Transaxle
- Case
- Countershaft
- Differential
- Extension Housing
- Fluid - M/T
- Gear
- Input Shaft
- Mainshaft Bearing/Bushing
- Output Shaft
- Reverse Gear Shaft
- Shifter M/T
- Speedometer Gear, M/T
- Transmission Mount
- Description and Operation
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Sensors and Switches - Transmission and Drivetrain
- Transfer Case
- Transmission Control Systems
- Diagrams
- Specifications
- 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
- Sensors and Switches - Brakes and Traction Control
- Service Precautions
- Description and Operation
- 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
- Service Precautions
- Testing and Inspection
- Specifications
- Technical Service Bulletins
- Power and Ground Distribution
- Steering and Suspension
- Alignment
- Relays and Modules - Steering and Suspension
- Sensors and Switches - Steering and Suspension
- Steering
- Suspension
- Wheels and Tires
- Technical Service Bulletins
- Heating and Air Conditioning
- Accumulator HVAC
- Air Door
- Blower Motor
- Blower Motor Relay
- Blower Motor Resistor
- Blower Motor Switch
- Compressor HVAC
- Compressor Clutch
- Compressor Shaft Seal
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Compressor Clutch Diode HVAC
- Compressor Clutch Relay
- Condenser HVAC
- Control Assembly
- Evaporator Core
- Expansion Block/Orifice Tube
- Heater Core
- Hose/Line HVAC
- Refrigerant
- Refrigerant Oil
- Refrigerant Pressure Sensor / Switch
- Relays and Modules - HVAC
- 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
- Instrument Panel, Gauges and Warning Indicators
- Ammeter Gauge
- Audible Warning Device
- Brake Warning Indicator
- Charge Lamp/Indicator
- Cigarette Lighter
- Clock
- Coolant Level Indicator Lamp
- Dashboard / Instrument Panel
- Dimmer Switch
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Low Fuel Lamp/Indicator
- Malfunction Indicator Lamp
- Odometer
- Oil Change Reminder Lamp
- Oil Pressure Warning Lamp/Indicator
- Parking Brake Warning Switch
- 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
- Vacuum Gauge/Economy Meter
- 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
- Daytime Running 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
- Application and ID
- Technical Service Bulletins
- Windows and Glass
- Wiper and Washer Systems
- Application and ID
- 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
- 1995 Medium & Heavy Duty Trucks
- 1996 Medium & Heavy Duty Trucks
- Locations
- Component Locations
- Additional Information
- Miscellaneous Components
- A/C Control Head
- Audio Alarm
- Blower Resistor
- Blower Resistors
- Defogger Circuit Breaker
- Diesel Engine Controller
- Diesel Engine Fuel Filter
- Diode
- Directional Signal Flasher
- Dropping Resistor
- Exhaust Gas Recirculation Control (Diesel)
- Fast Idle Actuator
- Fuel Gauge Sender
- Fuel Heater
- Fuse Panel
- Fusible Link A
- Fusible Link B
- Fusible Link D
- Fusible Link E
- Fusible Link F
- Fusible Link G
- Glow Plug Controller
- Hazard Flasher
- Inst LPS Fuse
- Key Reminder Buzzer
- Light Minder Buzzer
- Radio Capacitor
- Rear Defogger Circuit Breaker
- Seat Belt Timer/Buzzer
- Sensing Resistor
- Turn Flasher
- Vacuum Advance Actuator
- Vacuum Pump
- Vacuum Tank
- Windshield Washer Pump
- Modules
- Motors
- Relays
- Sensors
- Solenoids
- Switches
- Back-Up Lights Switch
- Barometric Pressure Switch
- Blower Switch
- Brake Pressure Switch
- Brake Switch
- Brake/Torque Converter Clutch (TCC) Switch
- Clutch Start Switch
- Controller Thermostatic Switch
- Converter Lock Switch
- Coolant Temperature Switch
- Early Fuel Evaporation (EFE) Coolant Temperature Switch
- Engine Oil Pressure Switches
- Fast Idle Switch
- Fast Idle Thermostatic Switch
- Function Control Switch
- Gear Selector Switch
- Ignition Switch
- Low Brake Vacuum Switch
- Low Vacuum Warning Switch
- Neutral Start Switch
- Neutral Start/Back-Up Switch (Auto. Trans)
- Oil Pressure Switch
- Park Brake Switch
- Parking Brake Warning Switch
- Power Steering Switch
- Pressure Cycling Switch
- Pulse Wiper Switch
- Seat Belt Switch
- Stop Light Switch
- Thermo Controller Switch
- Transmission Converter Clutch Lock Switch
- Transmission Pressure Switch
- Turn/Hazard Switch
- Vacuum Switch
- Wide-Open Throttle Cutout Switch
- Connector Locations
- Fuse and Fusible Link Locations
- Ground Locations
- Splice Locations
- Component Locations
- Diagrams
- Diagram Information and Instructions
- Exploded Views
- Electrical Diagrams
- Cell References
- Power and Ground Distribution
- Backup Lamp
- Battery
- Brake Lamp
- Brake Warning Indicator
- Charging System
- Dome Lamp
- Hazard Warning Lamps
- Headlamp
- Heated Glass Element
- Heating and Air Conditioning
- Horn
- Instrument Panel, Gauges and Warning Indicators
- License Plate Lamp
- Map Light
- Marker Lamp
- Parking Lamp
- Powertrain Management
- Radio, Stereo, and Compact Disc
- Seat Belt Systems
- Starting System
- Tail Lamp
- Transmission and Drivetrain
- Turn Signals
- Wiper and Washer Systems
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Additional Information
- Miscellaneous Components
- A/C Control Head
- Audio Alarm
- Blower Resistor
- Blower Resistors
- Defogger Circuit Breaker
- Diesel Engine Controller
- Diesel Engine Fuel Filter
- Diode
- Directional Signal Flasher
- Dropping Resistor
- Exhaust Gas Recirculation Control (Diesel)
- Fast Idle Actuator
- Fuel Gauge Sender
- Fuel Heater
- Fuse Panel
- Fusible Link A
- Fusible Link B
- Fusible Link D
- Fusible Link E
- Fusible Link F
- Fusible Link G
- Glow Plug Controller
- Hazard Flasher
- Inst LPS Fuse
- Key Reminder Buzzer
- Light Minder Buzzer
- Radio Capacitor
- Rear Defogger Circuit Breaker
- Seat Belt Timer/Buzzer
- Sensing Resistor
- Turn Flasher
- Vacuum Advance Actuator
- Vacuum Pump
- Vacuum Tank
- Windshield Washer Pump
- Modules
- Motors
- Relays
- Sensors
- Solenoids
- Switches
- Back-Up Lights Switch
- Barometric Pressure Switch
- Blower Switch
- Brake Pressure Switch
- Brake Switch
- Brake/Torque Converter Clutch (TCC) Switch
- Clutch Start Switch
- Controller Thermostatic Switch
- Converter Lock Switch
- Coolant Temperature Switch
- Early Fuel Evaporation (EFE) Coolant Temperature Switch
- Engine Oil Pressure Switches
- Fast Idle Switch
- Fast Idle Thermostatic Switch
- Function Control Switch
- Gear Selector Switch
- Ignition Switch
- Low Brake Vacuum Switch
- Low Vacuum Warning Switch
- Neutral Start Switch
- Neutral Start/Back-Up Switch (Auto. Trans)
- Oil Pressure Switch
- Park Brake Switch
- Parking Brake Warning Switch
- Power Steering Switch
- Pressure Cycling Switch
- Pulse Wiper Switch
- Seat Belt Switch
- Stop Light Switch
- Thermo Controller Switch
- Transmission Converter Clutch Lock Switch
- Transmission Pressure Switch
- Turn/Hazard Switch
- Vacuum Switch
- Wide-Open Throttle Cutout Switch
- Connectors
- Fuse and Fusible Links
- Grounds
- Splices
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Alignment
- Brake Drum
- Brake Master Cylinder
- Brake Rotor/Disc
- Camshaft, Lifters and Push Rods
- Cylinder Block Assembly
- Cylinder Head Assembly
- Drive Belt
- Fuel Delivery and Air Induction
- Glow Plug
- Intake Manifold
- Oil Pressure Sensor
- Oil Pump, Engine
- Starting and Charging
- Steering Gear
- Tie Rod
- Transmission and Drivetrain
- System Specifications
- Automatic Transmission/Transaxle
- System Specifications
- Band Apply Servo, A/T
- Bell Housing, A/T
- Case, A/T
- Extension Housing, A/T
- Fluid Line/Hose, A/T
- Fluid Pan, A/T
- Fluid Pump, A/T
- Governor, A/T
- Shift Cable, A/T
- Shift Modulator
- Shifter A/T
- Throttle Valve Cable/Linkage, A/T
- Torque Converter
- Transmission Mount, A/T
- Transmission Pressure Test Port, A/T
- Valve Body, A/T
- Case, M/T
- Clutch Linkage
- Clutch Pedal Assembly
- Countershaft, M/T
- Differential Assembly
- Extension Housing, M/T
- Flex Plate
- Gear, M/T
- Input Shaft, M/T
- Mainshaft Bearing/Bushing, M/T
- Output Shaft, M/T
- Reverse Gear Shaft
- Ring Gear, M/T
- Shifter M/T
- Speedometer Gear, M/T
- Transmission Mount, M/T
- Wheel Cylinder
- Wheel Stud / Lug Nut
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
Diagnostic Trouble Codes