Repair and Diagnosis
- Relays and Modules
- Relays and Modules - Accessories and Optional Equipment
- Relays and Modules - Body and Frame
- Relays and Modules - Cooling System
- Relays and Modules - Cruise Control
- Relays and Modules - HVAC
- Relays and Modules - Instrument Panel
- Relays and Modules - Lighting and Horns
- Relays and Modules - Power and Ground Distribution
- Relays and Modules - Powertrain Management
- Relays and Modules - Restraints and Safety Systems
- Relays and Modules - Starting and Charging
- Relays and Modules - Steering and Suspension
- Relays and Modules - Windows and Glass
- Sensors and Switches
- Sensors and Switches - Body and Frame
- 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 - Starting and Charging
- Sensors and Switches - Windows and Glass
- 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
- Application and ID
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 7500 MI or 12000 KM
- 15000 MI or 24000 KM
- 22500 MI or 36000 KM
- 30000 MI or 48000 KM
- 37500 MI or 60000 KM
- 45000 MI or 72000 KM
- 52500 MI or 84000 KM
- 60000 MI or 96000 KM
- 67500 MI or 108000 KM
- 75000 MI or 120000 KM
- 82500 MI or 132000 KM
- 90000 MI or 144000 KM
- 97500 MI or 156000 KM
- 100000 MI or 160000 KM
- 105000 MI or 168000 KM
- 112500 MI or 180000 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
- 123000 MI or 196800 KM
- 126000 MI or 201600 KM
- 129000 MI or 206400 KM
- 132000 MI or 211200 KM
- 135000 MI or 216000 KM
- 138000 MI or 220800 KM
- 141000 MI or 225600 KM
- 144000 MI or 230400 KM
- 147000 MI or 235200 KM
- 150000 MI or 240000 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
Locations- Service and Repair
- Specifications
- Technical Service Bulletins
- Cooling System
- Coolant
- Coolant Level Indicator Lamp
- Radiator Cooling Fan
- Engine - Coolant Temperature Sensor/Switch
- Fan Shroud
- 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
- Air Temperature Sensor ( Ambient / Intake )
- Coolant Temperature Sensor/Switch (For Computer)
- Data Link Connector
- EGR Backpressure Transducer
- Engine Control Module
- Main Relay (Computer/Fuel System)
- Manifold Pressure/Vacuum Sensor
- Memory Calibration Unit
- Mixture Control Solenoid
- Oil Pressure Sensor
- Output Driver
- Oxygen Sensor
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Throttle Position Sensor
- Throttle Position Switch
- Vehicle Speed Sensor
Service Precautions- Application and ID
Description and Operation
Testing and Inspection
Adjustments
Diagrams- Technical Service Bulletins
- Emission Control Systems
- Air Injection
- Catalytic Converter
- Early Fuel Evaporation ( EFE )
- Evaporative Emissions System
- Exhaust Gas Recirculation
- Hot Idle Compensator (Non Comp. Controlled)
- Positive Crankcase Ventilation
- Thermostatic Air Cleaner
- Vacuum Restrictor
- Description and Operation
- Locations
- Diagrams
- Technical Service Bulletins
- Fuel Delivery and Air Induction
- Fuel Pressure
- Idle Speed
- Air Cleaner Housing
- Altitude Compensator
- Carburetor
- Cold Start Injector
- Fuel
- Fuel Filler Cap
- Fuel Injector
- Fuel Pump
- Fuel Return Line
- Fuel Shut-off Solenoid
- Fuel Supply Line
- Fuel Tank
- Fuel Tank Unit
- Idle/Altitude Compensator (Non Comp. Controlled)
- Main Relay (Computer/Fuel System)
- Relays and Modules - Fuel Delivery and Air Induction
- Sensors and Switches - Fuel Delivery and Air Induction
- Thermo Time Switch
- Throttle Position Sensor
- Throttle Position Switch
- Turbocharger
- Service Precautions
- Adjustments
- Diagrams
- Specifications
- Technical Service Bulletins
- Ignition System
- Transmission Control Systems
- PROM - Programmable Read Only Memory
- Service Precautions
- Application and ID
- Locations
- Diagrams
- Technical Service Bulletins
- Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Clutch
- Differential
- Fluid - A/T
- Fluid Pan
- Fluid Pump
- Output Shaft
- Seals and Gaskets
- Torque Converter
- Torque Converter Clutch
- Transmission Cooler
- Transmission Mount
- Valve Body
- Application and ID
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- A131L Automatic Transaxle
- Delayed Upshifts & Downshifts
- Drag or Binding on Upshifts
- Fluid Discolored or Smells Burnt
- Harsh Downshift
- Harsh Engagement Into Any Drive Range
- Incorrect Downshift
- Incorrect Shift Lever Position
- No Downshift When Coasting
- No Engine Braking In 2nd Speed
- No Hold In Park
- No Kickdown
- Slips on Upshifts or Shudders on Takeoffs
- Vehicle Does Not Move In Any Drive Gear
- Vehicle Does Not Move In Any Range
- A240E Automatic Transaxle
- Delayed Upshifts & Downshifts
- Drag or Binding on Upshifts
- Fluid Discolored or Smells Burned
- Harsh Downshift
- Harsh Engagement Into Any Drive Range
- Incorrect Downshift
- Incorrect Shift Lever Position
- No Downshift When Coasting
- No Engine Braking In 2nd Speed
- No Hold In Park
- No Kickdown
- Slips on Upshifts or Shudders on Takeoffs
- Vehicle Does Not Move In Any Drive Gear
- Vehicle Does Not Move In Any Range
- A131L Automatic Transaxle
- Component Tests and General Diagnostics
- Service and Repair
- Procedures
- Removal and Replacement
- Overhaul
- A131L Automatic Transaxle
- A240E Automatic Transaxle
- Diagrams
- Specifications
- Technical Service Bulletins
- Clutch
- Continuously Variable Transmission/Transaxle
- Differential Assembly
- Drive Axles, Bearings and Joints
- Flywheel
- Manual Transmission/Transaxle
- Bell Housing
- Case
- Differential
- Drain Plug
- Fill Plug
- Fluid - M/T
- Gear
- Input Shaft
- Mainshaft Bearing/Bushing
- Output Shaft
- Reverse Gear Shaft
- Reverse Idler Gear
- Shift Fork
- Shifter M/T
- Shift Linkage
- Speedometer Gear, M/T
- Description and Operation
- Testing and Inspection
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Transfer Case
- Transmission Control Systems
- Diagrams
- Specifications
- Technical Service Bulletins
- Automatic Transmission/Transaxle
- Brakes and Traction Control
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Relays and Modules - Starting and Charging
- Battery
- Charging System
- Starting System
- Power and Ground Distribution
- Service Precautions
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Power and Ground Distribution
- Steering and Suspension
- Heating and Air Conditioning
- Air Conditioning Switch
- Air Door
- Blower Motor
- Blower Motor Relay
- Blower Motor Switch
- Compressor HVAC
- Compressor Clutch Diode HVAC
- Compressor Clutch Relay
- Condenser HVAC
- Condenser Fan
- Condenser Fan Motor Relay
- Evaporator Core
- Evaporator Drain Tube
- Expansion Block/Orifice Tube
- Expansion Valve
- Heater Core
- Hose/Line HVAC
- Receiver Dryer
- Refrigerant
- Refrigerant Oil
- Refrigerant Pressure Sensor / Switch
- Refrigerant Temperature Sensor
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Service Port HVAC
- Vacuum Solenoid Valve 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
- Charge Lamp/Indicator
- Cigarette Lighter
- Clock
- Coolant Level Indicator Lamp
- Dashboard / Instrument Panel
- Dimmer Switch
- Door/Trunk Ajar Indicator/Lamp
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Low Fuel Lamp/Indicator
- Odometer
- Oil Pressure Warning Lamp/Indicator
- Parking Brake Warning Switch
- Relays and Modules - Instrument Panel
- Sensors and Switches - Instrument Panel
- Speedometer Cable
- Speedometer Head
- Temperature Gauge
- Temperature Sensor (Gauge)
- Temperature Warning Lamp/Indicator
- Tire Monitoring System
- Transmission Shift Position Indicator Lamp
- Vacuum Gauge/Economy Meter
- Volt Meter Gauge
- Description and Operation
- Testing and Inspection
- Service and Repair
- Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Courtesy Lamp
- Daytime Running Lamp
- Dimmer Switch
- Fog/Driving Lamp
- Hazard Warning Lamps
- Headlamp
- Horn
- License Plate Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Tail Lamp
- Turn Signals
- Service and Repair
- 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
- Additional Information
- Miscellaneous Components
- A/C Actuator
- A/C Amplifier
- A/C Condenser
- A/C Discharge Flexible Hose
- A/C Fan Shroud
- A/C Liquid Line Tube
- A/C Suction Flexible Hose
- AAP
- Actuator
- Air Suction Reed Valve
- Air Suction Shut-Off-Valve
- Air Suction Valve
- Auxiliary Acceleration Pump
- Charcoal Canister
- Check Valve
- Choke Breaker
- Choke Opener
- Circuit Breaker
- Cruise Computer
- Delay Valve
- Distributor, Ignition
- EBCV
- ECM
- EGR Vacuum Modulator
- EGR Valve
- Electric Air Bleed Control Valve
- Emission Computer
- Flasher
- Fuel Gauge Sender
- Fuel Vapor Canister
- HAC Diaphragm
- HAC Valve
- HIC Valve
- High Altitude Compensation Valve
- Horn Contact
- Hot Air Intake Diaphragm
- Hot Idle Compensator
- Jet
- Light Control Rheostat
- Lighter
- Outer Vent Control Valve
- Throttle Positioner
- Vacuum Pump
- VSV
- VTV
- Washer Valve
- Water Temperature Sender
- Relays
- Sensors
- Solenoids
- Switches
- A/C Low Pressure Switch
- A/C Switch
- Back-Up Light Switch
- Clutch Switch
- Courtesy Switch
- Courtesy Switch (In Luggage Door Lock)
- Defogger Switch
- Door Lock Switch
- Headlight Dimmer Switch
- Heater Blower Switch
- Ignition/Starter Switch
- Light Control Switch
- Mirror Switch
- Neutral Start Switch
- Oil Pressure Switch
- Parking Brake Switch
- Power Window Door Switch
- Power Window Master Switch
- Rear Wiper Switch
- Start Injector Time Switch
- Stop Light Switch
- Thermo Switch
- Thermostatic Vacuum Switching Valve
- Throttle Position Switch
- Turn Signal & Hazard Warning Switch
- Vacuum Switch
- Vacuum Switching Valve
- Water Temperature Switch
- Wiper & Cruise Control Switch
- Diagrams
- Diagram Information and Instructions
- Exploded Views
- Connector Views
- Electrical Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Additional Information
- Miscellaneous Components
- A/C Actuator
- A/C Amplifier
- A/C Condenser
- A/C Discharge Flexible Hose
- A/C Fan Shroud
- A/C Liquid Line Tube
- A/C Suction Flexible Hose
- AAP
- Actuator
- Air Suction Reed Valve
- Air Suction Shut-Off-Valve
- Air Suction Valve
- Auxiliary Acceleration Pump
- Charcoal Canister
- Check Valve
- Choke Breaker
- Choke Opener
- Circuit Breaker
- Cruise Computer
- Delay Valve
- Distributor, Ignition
- EBCV
- ECM
- EGR Vacuum Modulator
- EGR Valve
- Electric Air Bleed Control Valve
- Emission Computer
- Flasher
- Fuel Gauge Sender
- Fuel Vapor Canister
- HAC Diaphragm
- HAC Valve
- HIC Valve
- High Altitude Compensation Valve
- Horn Contact
- Hot Air Intake Diaphragm
- Hot Idle Compensator
- Jet
- Light Control Rheostat
- Lighter
- Outer Vent Control Valve
- Throttle Positioner
- Vacuum Pump
- VSV
- VTV
- Washer Valve
- Water Temperature Sender
- Relays
- Sensors
- Solenoids
- Switches
- A/C Low Pressure Switch
- A/C Switch
- Back-Up Light Switch
- Clutch Switch
- Courtesy Switch
- Courtesy Switch (In Luggage Door Lock)
- Defogger Switch
- Door Lock Switch
- Headlight Dimmer Switch
- Heater Blower Switch
- Ignition/Starter Switch
- Light Control Switch
- Mirror Switch
- Neutral Start Switch
- Oil Pressure Switch
- Parking Brake Switch
- Power Window Door Switch
- Power Window Master Switch
- Rear Wiper Switch
- Start Injector Time Switch
- Stop Light Switch
- Thermo Switch
- Thermostatic Vacuum Switching Valve
- Throttle Position Switch
- Turn Signal & Hazard Warning Switch
- Vacuum Switch
- Vacuum Switching Valve
- Water Temperature Switch
- Wiper & Cruise Control Switch
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Alignment
- Axle Nut
- Brake Drum
- Brake Master Cylinder
- Brake Rotor/Disc
- Distributor, Ignition
- Engine
- Exhaust Manifold
- Firing Order
- Fuel Delivery and Air Induction
- Spark Plug
- Transmission and Drivetrain
- System Specifications
- Automatic Transmission/Transaxle
- Axle Shaft Assembly
- Flywheel
- Manual Transmission/Transaxle
- Wheel Stud / Lug Nut
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
Diagnostic Trouble Codes