Safety Warning
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.
1992 Chevrolet G 30 Van V8-350 5.7LFACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- Relays and Modules - Accessories and Optional Equipment
- Relays and Modules - Body and Frame
- Relays and Modules - Brakes and Traction Control
- 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 - Powertrain Management
- Relays and Modules - Steering and Suspension
- Relays and Modules - Transmission and Drivetrain
- 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 - 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 - Windows and Glass
- Sensors and Switches - Wiper and Washer Systems
- Maintenance
- Alignment
- Tune-up and Engine Performance Checks
- Fuel Pressure
- Idle Speed
- Air Cleaner Housing
- Fuel Filter
- Firing Order
- Ignition Timing
- Ignition Cable
- Distributor
- Spark Plug
- Compression Check
- Valve Clearance
Service Precautions
Testing and Inspection
Service and Repair
Technical Service Bulletins
Tools and Equipment
- 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
Specifications- Technical Service Bulletins
- Engine, Cooling and Exhaust
- Engine
- Access Cover
- 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
- Fuel Pressure
- Idle Speed
- Air Cleaner Housing
- Fuel Filter
- Firing Order
- Ignition Timing
- Ignition Cable
- Distributor
- Spark Plug
- Compression Check
- Valve Clearance
- Service Precautions
- Testing and Inspection
- Service and Repair
- Technical Service Bulletins
- Tools and Equipment
- Water Pump
- Testing and Inspection
Locations- Service and Repair
- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Cooling System
- Coolant
- Coolant Level Indicator Lamp
- Radiator Cooling Fan
- Engine - Coolant Temperature Sensor/Switch
- Heater Control Valve
- 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
- Service Precautions
- Testing and Inspection
- Service and Repair
- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Fundamentals and Basics
- Exhaust System
- Technical Service Bulletins
- Engine
- Powertrain Management
- Relays and Modules - Powertrain Management
- Sensors and Switches - Powertrain Management
- Tune-up and Engine Performance Checks
- Fuel Pressure
- Idle Speed
- Air Cleaner Housing
- Fuel Filter
- Firing Order
- Ignition Timing
- Ignition Cable
- Distributor
- Spark Plug
- Compression Check
- Valve Clearance
- Service Precautions
- Testing and Inspection
- Service and Repair
- Technical Service Bulletins
- Tools and Equipment
- Computers and Control Systems
- A/C Signal
- Air Temperature Sensor ( Ambient / Intake )
- Brake Signal
- Coolant Temperature Sensor/Switch (For Computer)
- Cranking Signal
- Data Link Connector
- Electronic Spark Control Module
- Engine Control Module
- Fuel Pump Signal
- Idle Speed/Throttle Actuator - Electronic
- Idle/Throttle Speed Control Unit
- Knock Sensor
- Malfunction Indicator Lamp
- Manifold Pressure/Vacuum Sensor
- Memory Calibration Unit
- Oil Pressure Sensor
- Output Driver
- Overvoltage Protection Relay
- Oxygen Sensor
- Power Steering Pressure Switch
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Shift Light
- Throttle Position Sensor
- Transmission Position Sensor/Switch
- Vehicle Speed Sensor
- Vehicle Speed Sensor Signal Buffer
- Voltage Signal
- Service Precautions
Description and Operation- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Reading and Clearing Diagnostic Trouble Codes
- Symptom Related Diagnostic Procedures
- - A-E Charts & Related Test Procedures
- - Diagnosis By Symptom
- Backfires
- Cuts Out/Misses
- Detonation/Spark Knock/Pings
- Dieseling/Run-On
- Engine Cranks, But Will Not Run
- Excessive Exhaust Emissions (Odors)
- Excessive Odors - Fuel, Emissions
- Hard to Start
- Hesitation or Stalls on Acceleration
- Hesitation, Sag, Stumble
- High CO and HC at Idle
- High CO at High RPM
- High CO, Low or Normal HC at Idle
- High HC and CO at High RPM
- High HC at High RPM
- High HC, Low or Normal CO at Idle
- Lack of Power/Sluggish/Spongy/Stumble
- Misses Under Load
- Poor Fuel Economy
- Rough, Unstable, or Incorrect Idle, Stalling
- Starts, But Stalls
- Surge, Hesitation, Stall on Acceleration
- Surges at Steady Speed
- Surges/Chuggles
- Component Tests and General Diagnostics
- A-E Charts & Related Test Procedures
- Alcohol/Contaminants-In-Fuel Testing Procedure
- Circuit Check - Brake Signal
- ECM QDR Check Procedure (Without 4L80-E Transmission)
- Ignition System Check - With 4L80-E Automatic Transmission
- Ignition System Check - Without 4L80-E Automatic Transmission
- MAP Sensor Output Diagnosis
- Oxygen Sensor (O2S) Testing
- Park/Neutral (P/N) Switch Diagnosis
- PCM QDR Check Procedure (With 4L80-E)
- Shift Light (M/T Only)
- System Check - Idle Air Control (IAC) - With 4L80-E
- System Check - Idle Air Control (IAC) - Without 4L80-E
- System Check - Restricted Exhaust
- System Diagnosis - Crank Signal
- System Diagnosis - Electronic Spark Control (ESC) - With 4L80-E
- System Diagnosis - Electronic Spark Control (ESC) - Without 4L60E/4L80E
- System Diagnosis - Exhaust Gas Recirculation (EGR) System
- System Diagnosis - Knock Sensor (KS) With 4L80-E
- System Diagnosis - Knock Sensor (KS) Without Electronic Transmission
- System Diagnosis - Secondary Testing
- Torque Converter Clutch (TCC) Check
Adjustments- Locations
Diagrams- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Circuit Tester
- Connector Test Adapter Kit
- Fillpipe Restrictor Dowel
- Fuel Line Quick - Connect Separator
- Fuel Pressure Gauge
- High Impedance Multimeter
- IAC System Monitor
- Injector Test Light
- Metri-Pack Terminal Remover
- PCM Connector Terminal Remover
- Scan Tool
- Unpowered Test Light
- Vacuum Pump With Gauge
- Weather Pack Terminal Remover
- Emission Control Systems
- Catalytic Converter
- Evaporative Emissions System
- Exhaust Gas Recirculation
- Fillpipe Restrictor
- Positive Crankcase Ventilation
- Thermostatic Air Cleaner
- Application and ID
- Description and Operation
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Circuit Tester
- Connector Test Adapter Kit
- Fillpipe Restrictor Dowel
- Fuel Line Quick Connect Separator
- Fuel Pressure Gauge
- High Impedance Multimeter
- Iac System Monitor
- Injector Test Light
- Metri-Pack Terminal Remover
- PCM Connector Terminal Remover
- Scan Tool
- Unpowered Test Light
- Vacuum Pump With Gauge
- Weather Pack Terminal Remover
- Fuel Delivery and Air Induction
- Fuel Pressure
- Fuel Pressure Release
- Idle Speed
- Accelerator Pedal
- Air Cleaner Housing
- Air Temperature Switch
- Fillpipe Restrictor
- Fuel
- Fuel Filler Cap
- Fuel Filter
- Fuel Heater
- Fuel Injector
- Fuel Pressure Control Module
- Fuel Pressure Regulator
- Fuel Pressure Test Port
- Fuel Pressure Pulsation Damper
- Fuel Pump
- Fuel Return Line
- Fuel Supply Line
- Fuel Tank
- Fuel Tank Unit
- Idle Speed/Throttle Actuator - Electronic
- Idle/Throttle Speed Control Unit
- 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
- Description and Operation
- Locations
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Tools and Equipment
- Circuit Tester
- Connector Test Adapter Kit
- Fillpipe Restrictor Dowel
- Fuel Line Quick Connect Separator
- Fuel Pressure Gauge
- High Impedance Multimeter
- IAC System Monitor
- Injector Test Light
- Metri-Pack Terminal Remover
- PCM Connector Terminal Remover
- Scan Tool
- Unpowered Test Light
- Vacuum Pump With Gauge
- Weather Pack Terminal Remover
- J-39021 Injector Tester
- Ignition System
- Firing Order
- Ignition Timing
- Distributor
- Electronic Spark Control Module
- Ignition Cable
- Ignition Coil
- Ignition Control Module
- Ignition Timing Connector
- Knock Sensor
- Pick-Up Coil
- Pole Piece / Reluctor Wheel
- Relays and Modules - Ignition System
- Sensors and Switches - Ignition System
- Spark Plug
- Description and Operation
- Locations
- Technical Service Bulletins
- Tools and Equipment
- Transmission Control Systems
- PROM - Programmable Read Only Memory
- Service Precautions
- Application and ID
- Locations
- Diagrams
- Diagram Information and Instructions
- Diagnostic Aids
- Electrical Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Circuit Tester
- Connector Test Adapter Kit
- Fillpipe Restrictor Dowel
- Fuel Line Quick - Connect Separator
- Fuel Pressure Gauge
- High Impedance Multimeter
- IAC System Monitor
- Injector Test Light
- Metri-Pack Terminal Remover
- PCM Connector Terminal Remover
- Scan Tool
- Unpowered Test Light
- Vacuum Pump With Gauge
- Weather Pack Terminal Remover
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Actuators and Solenoids - A/T
- Accumulator
- Band
- Band Apply Servo
- Bell Housing
- Case
- Channel Plate
- Clutch
- Control Module
- Extension Housing
- Fluid - A/T
- Fluid Line/Hose
- Fluid Pan
- Fluid Pressure Sensor/Switch
- Fluid Pump
- Governor
- Lamps and Indicators - A/T
- Output Shaft
- Parking Pawl
- Pressure Regulating Solenoid
- Relays and Modules - A/T
- Seals and Gaskets
- Sensors and Switches - A/T
- Shift Indicator - A/T
- Shift Solenoid
- Shift Linkage
- Speedometer Gear, A/T
- Stator Shaft
- Throttle Valve Cable/Linkage
- Torque Converter
- Torque Converter Clutch
- Torque Converter Clutch Solenoid
- Transmission Cooler
- Transmission Mount
- Transmission Position Sensor/Switch
- Transmission Pressure Test Port
- Transmission Speed Sensor
- Transmission Temperature Sensor/Switch
- Turbine Shaft
- Valve Body
- Wiring Harness
- Application and ID
- Description and Operation
- Testing and Inspection
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- 4L60-E Automatic Transmission
- Converter Clutch Does Not Release
- Delay In Drive and Reverse
- Drives In Neutral
- Harsh Garage Shift
- Harsh Shifts
- High or Low Shift Points
- Inaccurate Shift Points
- No Drive In All Ranges
- No Drive In Drive Range
- No Overrun Braking Manual 3-2-1
- No Park
- No Part Throttle or Delayed Downshifts
- No Torque Converter Clutch Apply
- No 1-2 Upshift, 1ST Speed Only
- No 2-3 Shift or 2-3 Shift Slipping, Rough or Hunting
- No 3-4 Shift or Rough 3-4 Shift
- Oil Out of the Vent
- Oil Pressure High or Low
- Ratcheting Noise
- Slips In 1ST Gear
- Torque Converter Clutch Shudder
- Vibration In Reverse and Whining Noise In Park
- 1-2 Shift Slipping or Rough
- 1-2 Shift Speed - High or Low
- 1ST & 4TH Gear Only
- 2ND & 3RD Gear Only
- 2ND Gear Start In Drive Range
- 3-2 Flare or Tie-Up
- 4L80-E Automatic Transmission
- Converter Ballooning
- Delayed 1-2 Shift
- Engine Stalls
- Engine Starts In Gear
- Fluid Foaming
- Forward Motion In Neutral
- Hard to Shift Out of or Remains In Park
- Harsh Shifts
- Improper TCC Application or Release
- Inaccurate Shift Points
- Insufficient Lube
- Insufficient Lube at Low Line or Under Heavy Load
- Loss of Drive
- Loss of Power
- Low Line Pressure
- No First Gear
- No Fourth Gear
- No Gear Selection
- No Park
- No Reverse
- No Second Gear
- No Third Gear
- No Torque Converter Clutch Apply
- No Torque In Reverse & Third
- No Torque In Second Gear
- No Torque Multiplication
- Noise/Vibration
- Oil Pressure High or Low
- Second Gear Starts
- Shift Lever Indicates Wrong Gear
- Slipping TCC
- Slow Application of TCC
- TCC Stuck On
- Third Gear Starts
- Transmission Overheats
- 4L60-E Automatic Transmission
- Component Tests and General Diagnostics
- Locations
- Service and Repair
- Procedures
- Removal and Replacement
- Overhaul
- 4L60/4L60-E (700-R4) Automatic Transmission
- Disassemble
- Subassembly Service & Transaxle Assemble
- Case & Internal Components
- Case Assembly Inspection
- Check Valve Retainer & Ball Assembly
- Clutch Air Check
- Forward Clutch Sprag Assembly
- Inner Manual Linkage
- Input Carrier & Sun Gear
- Input Clutch Assembly
- Input Internal Gear & Output Shaft
- Low & Reverse Clutch Assembly
- Low & Reverse Support Assembly
- Oil Pump Cover & Body Assembly
- Oil Pump Cover Assembly
- Oil Pump Cover Disassemble
- Oil Pump Disassembly
- Parking Pawl
- Pump Body Assembly
- Pump Body Disassembly
- Reaction Internal Gear & Carrier Assembly Inspection
- Reaction Sun Gear & Shell
- Reverse Input & Input Clutches
- Reverse Input Clutch Assembly
- Third Accumulator Retainer & Ball Assembly
- Transmission Endplay Check
- 2-4 Band Assembly
- 3-4 Clutch Piston Travel Check
- External Components
- Case & Internal Components
- 4L80-E Automatic Transmission
- Disassemble
- Subassembly Service
- Accumulator Housing
- Case Extension
- Center Support Assembly
- Control Valve
- Direct Clutch Assembly
- Forward Clutch Assembly
- Fourth Clutch Assembly
- Front Servo Assembly
- Gear Unit & Output Assemblies
- Intermediate Clutch Assembly & Front Band
- Overdrive Carrier Assembly
- Overdrive Unit
- Overrun Clutch Assembly
- Parking Lock Pawl & Actuator Assembly
- Pump
- Rear Band & Selective Thrust Washer
- Rear Servo Accumulator
- Torque Converter Inspection
- Transmission Case
- Turbine Shaft
- Assemble
- 4L60/4L60-E (700-R4) Automatic Transmission
- Diagrams
- Diagram Information and Instructions
- Diagnostic Aids
- Exploded Views
- Electrical Diagrams
- Fluid 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
- Flex Plate
- Flywheel
- Lamps and Indicators - Transmission and Drivetrain
- Manual Transmission/Transaxle
- Relays and Modules - Transmission and Drivetrain
- Sensors and Switches - Transmission and Drivetrain
- Transfer Case
- Transmission Control Systems
- Diagrams
- Technical Service Bulletins
- Brakes and Traction Control
- Antilock Brakes / Traction Control Systems
- ABS Light
- Electronic Brake Control Module
- Hydraulic Assembly
- Hydraulic Control Assembly - Antilock Brakes
- Wheel Speed Sensor
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Brake Bleeding
- Brake Pedal Assy
- Brake Warning Indicator
- Disc Brake System
- Drum Brake System
- Hydraulic System
- Parking Brake System
- Power Brake Assist
- Relays and Modules - Brakes and Traction Control
- Sensors and Switches - Brakes and Traction Control
- Service Precautions
- Testing and Inspection
- Service and Repair
- Technical Service Bulletins
- Antilock Brakes / Traction Control Systems
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Battery
- Charging System
- Alternator
- Diode Trio
- Application and ID
- Description and Operation
- Testing and Inspection
- Locations
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Voltage Regulator
- Service Precautions
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Alternator
- Starting System
- Ignition Switch
- Key
- Neutral Safety Switch
- Starter Motor
- Starter Solenoid
- Application and ID
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Power and Ground Distribution
- Diode
- Fuse
- Fuse Block
- Fusible Link
- Ground Strap
- Grounding Point
- Multiple Junction Connector
- Timer/Control Unit
- Wiring Harness
- Diagrams
- Technical Service Bulletins
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Power and Ground Distribution
- Diode
- Fuse
- Fuse Block
- Fusible Link
- Ground Strap
- Grounding Point
- Multiple Junction Connector
- Timer/Control Unit
- Wiring Harness
- Diagrams
- Technical Service Bulletins
- Steering and Suspension
- Alignment
- Relays and Modules - Steering and Suspension
- Sensors and Switches - Steering and Suspension
- Steering
- Front Steering Knuckle
- Power Steering
- Sensors and Switches - Steering
- Steering Column
- Steering Gear
- Steering Wheel
- Service Precautions
- Testing and Inspection
- Specifications
- Technical Service Bulletins
- Suspension
- Wheels and Tires
- Specifications
- Technical Service Bulletins
- Heating and Air Conditioning
- Accumulator HVAC
- Air Conditioning Switch
- Blower Motor
- Blower Motor Relay
- Blower Motor Resistor
- Blower Motor Switch
- Compressor HVAC
- Compressor Clutch
- Compressor Clutch Bearing
- Compressor Clutch Coil
- Compressor Clutch Hub
- Compressor Shaft Seal
- Description and Operation
- Testing and Inspection
- Locations
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Compressor Clutch Diode HVAC
- Control Assembly
- Control Module HVAC
- Coolant Temperature Sensor / Switch HVAC
- Evaporator Core
- Evaporator Pressure Regulator
- Expansion Block/Orifice Tube
- Expansion Valve
- Heater Control Valve
- Heater Core
- Refrigerant
- Refrigerant Oil
- Refrigerant Pressure Sensor / Switch
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Service Port HVAC
- Service Precautions
- Description and Operation
- Testing and Inspection
- Locations
- Service and Repair
- Diagrams
- Specifications
- Technical Service Bulletins
- Restraints and Safety Systems
- Accessories and Optional Equipment
- Antenna
- Antitheft and Alarm Systems
- Keyless Entry
- Keyless Entry Module
- Keyless Entry Transmitter
- Description and Operation
- Testing and Inspection
- Locations
- Diagrams
- Technical Service Bulletins
- Technical Service Bulletins
- Keyless Entry
- Cellular Phone
- Radio, Stereo, and Compact Disc
- Compact Disc Player (CD)
- Radio/Stereo
- Remote Control
- Speaker
- Tape Player
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Relays and Modules - Accessories and Optional Equipment
- Relay Module
- Towing / Trailer System
- Technical Service Bulletins
- Body and Frame
- Access Cover
- Bumper
- Doors, Hood and Trunk
- Doors
- Technical Service Bulletins
- Exterior Moulding / Trim
- Frame
- Interior Moulding / Trim
- Locks
- Door Locks
- Key
- Keyless Entry
- Keyless Entry Module
- Keyless Entry Transmitter
- Description and Operation
- Testing and Inspection
- Locations
- Diagrams
- Technical Service Bulletins
- Power Locks
- Technical Service Bulletins
- Mirrors
- Heated Element
- Power Mirror Motor
- Power Mirror Switch
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Paint, Striping and Decals
- Relays and Modules - Body and Frame
- Roof and Associated Components
- Seats
- Sensors and Switches - Body and Frame
- Tailgate
- Weatherstrip
- Technical Service Bulletins
- Cruise Control
- Brake Switch (Cruise Control)
- Clutch Switch
- 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
- Vehicle Speed Sensor/Transducer - Cruise Control
- Description and Operation
- Testing and Inspection
- Adjustments
- Locations
- Diagrams
- Technical Service Bulletins
- Tools and Equipment
- Instrument Panel, Gauges and Warning Indicators
- ABS Light
- Air Conditioning Indicator Lamp
- Audible Warning Device
- Brake Warning Indicator
- Cigarette Lighter
- Coolant Level Indicator Lamp
- Dashboard / Instrument Panel
- Dimmer Switch
- Door Switch
- Fuel Distance/Mileage Module
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Malfunction Indicator Lamp
- Odometer
- Oil Pressure Gauge
- Oil Pressure Sender
- Oil Pressure Warning Lamp/Indicator
- Parking Brake Warning Switch
- Relays and Modules - Instrument Panel
- Sensors and Switches - Instrument Panel
- Shift Indicator - A/T
- Speedometer Head
- Speedometer Module
- Tachometer
- Temperature Gauge
- Temperature Switch (Warning Indicator)
- 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
- Initial Inspection and Diagnostic Overview
- Symptom Related Diagnostic Procedures
- Brake Indicator on W/Ignition Switch In Run and Park Brake Off
- Brake Warning Lamp Does Not Operate
- Fuel Gage Indicates Empty When There Is Fuel In the Tank
- Fuel Gage Indicates Full or Beyond at All Times
- Fuel Gage Is Inaccurate
- Gage Indicates Hot W/ENG Coolant Below Temp & Ign SW In Run
- Instrument Cluster Not Lit With Light Switch In Max Brightness
- Low Coolant Indicator Does Not Light W/Coolant Low (Dsl Only)
- Low Coolant Indicator Is Lit When Coolant Level Is Good
- Oil Pressure Gage Indicates High Pressure at All Times
- Oil Pressure Gage Indicates Low Pressure When Pressure Is Good
- Oil Pressure Gage Is Inaccurate
- Temperature Gage Indicates Cold All the Time
- Temperature Gage Is Not Accurate
- Voltmeter Is Not Accurate
- Component Tests and General Diagnostics
- Service and Repair
- Diagrams
- Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Backup Lamp Switch
- Description and Operation
- Testing and Inspection
- Locations
- Diagrams
- Technical Service Bulletins
- Brake Lamp
- Brake Light Switch
- Courtesy Lamp
- Daytime Running Lamp
- Dimmer Switch
- Dome Lamp
- Door Switch
- Fog/Driving Lamp
- Hazard Warning Lamps
- Headlamp
- Headlamp Dimmer Switch
- Headlamp Switch
- Description and Operation
- Testing and Inspection
- Locations
- Diagrams
- Technical Service Bulletins
- Horn
- License Plate Lamp
- Marker Lamp
- Parking Lamp
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Tail Lamp
- Turn Signals
- Turn Signal Flasher
- Turn Signal Lamp
- Turn Signal Switch
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Underhood Lamp
- Vanity Lamp
- Application and ID
- Description and Operation
- Locations
- Service and Repair
- Technical Service Bulletins
- Backup Lamp
- Windows and Glass
- Heated Glass Element
- Rear Defogger
- Sensors and Switches - Windows and Glass
- Windows
- Power Window Motor
- Power Window Switch
- Window Glass
- Window Regulator
- Description and Operation
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Windshield
- Technical Service Bulletins
- Wiper and Washer Systems
- Sensors and Switches - Wiper and Washer Systems
- Windshield Washer Pump
- Wiper Blade
- Wiper Gear Box
- Wiper Motor
- Wiper Switch
- Description and Operation
- Testing and Inspection
- Diagrams
- 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
- Component Locations
- Additional Information
- Miscellaneous Components
- A/C Accumulator
- A/C Compressor
- Battery
- Battery Junction Block
- Blower Resistor
- Brake Modulator Valve
- Cigarette Lighter
- Coil Assembly
- Digital Ratio Adapter Controller
- Diode
- Diode Array
- Distributor, Ignition
- Expansion Tube, A/C
- Expansion Valve
- Front Speaker, LH
- Front Speaker, RH
- Fuel Injector
- Fuel Pump
- Fuse Block
- Fusible Link
- Generator
- Hazard Flasher
- Horn
- I/P Compartment Box
- Idle Air Control Actuator
- In-Line Diode
- In-Line Fuse
- Radio
- Rear Door Speaker, LH
- Rear Door Speaker, RH
- Rear Speaker, LH
- Rear Speaker, RH
- Side Door Contact
- Speaker, Front
- Speaker, Rear
- Turn Signal Flasher
- Visor Vanity Mirror
- Windshield Washer Pump
- Modules
- Motors
- Auxiliary Heater Blower Motor
- Blower Motor
- Cruise Control Servo Motor
- Door Lock Motor, LH
- Door Lock Motor, Rear
- Door Lock Motor, RH
- Door Lock Motor, Sliding Side
- Power Mirror Motor Assembly, LH
- Power Mirror Motor Assembly, RH
- Power Window Motor
- Seat Motor
- Starter Motor
- Starter Motor Solenoid
- Windshield Wiper Motor
- Relays
- Sensors
- Solenoids
- Switches
- A/C Selector Switch
- Auxiliary A/C Blower Switch
- Auxiliary Heater Control Switch
- Backup Lamp & Transmission Position Switch
- Blower Switch
- Buzzer Switch
- Cluster Switches
- Coolant Temperature Switch
- Door Jamb Switch, LH
- Door Jamb Switch, Rear
- Door Jamb Switch, Sliding Side
- Door Lock Switch, LH
- Door Lock Switch, RH
- Evaporator Pressure Control Switch
- Fog Lamp Switch
- Fuel Pump Oil Pressure Switch
- Headlamp Dimmer Switch
- Headlamp Switch
- Heater Blower Switch
- High Pressure Cutout Switch
- Hydro-Boost Pressure Warning Switch
- Ignition Switch
- Panel & Interior Lamps Control Switch
- Park/Neutral Switch
- Parking Brake Warning Switch
- Power Mirror Switch
- Power Window Switch
- Pressure Cycling Switch
- Seat Control Switch
- Stop Lamp & TCC Switch
- TCC Stoplamp Switch
- Connector Locations
- Connectors By Component
- Connectors By Number
- C100-C199
- C200-C299
- C200
- C200A
- C201
- C202
- C202A
- C203
- C204
- C205
- C206
- C207
- C208
- C209
- C210
- C211
- C212
- C213
- C214
- C215
- C216
- C217
- C218
- C219
- C220
- C221
- C222
- C223
- C224
- C225
- C226
- C228
- C229
- C230
- C231
- C232
- C233
- C234
- C236
- C237
- C238
- C239
- C240
- C241
- C242
- C243
- C244
- C245
- C246
- C247
- C248
- C249
- C250
- C251
- C252
- C253
- C254
- C255
- C256
- C257
- C258
- C259
- C260
- C261
- C262
- C264
- C266
- C268
- C269
- C271
- C272
- C273
- C274
- C275
- C276
- C277
- C278
- C279
- C280
- C281
- C283
- C284
- C285
- C286
- C287
- C288
- C289
- C290
- C291
- C292
- C293
- C294
- C294A
- C295
- C296
- C297
- C298
- C299
- C300-C399
- C400-C499
- C500-C599
- C600-C699
- C800-C899
- C900-C999
- Pictorial Views
- Fuse and Fusible Link Locations
- Ground Locations
- Splice Locations
- Grommet Locations
- Harness Locations
- Component Locations
- Diagrams
- Diagram Information and Instructions
- Diagnostic Aids
- Exploded Views
- Connector Views
- Electrical Diagrams
- Cell References
- Antenna
- Antilock Brakes / Traction Control Systems
- Backup Lamp
- Brake Lamp
- Brake Warning Indicator
- Courtesy Lamp
- Cruise Control
- Dome Lamp
- Doors
- Hazard Warning Lamps
- Headlamp
- Heated Glass Element
- Heating and Air Conditioning
- Horn
- Instrument Panel, Gauges and Warning Indicators
- Keyless Entry
- License Plate Lamp
- Marker Lamp
- Mirrors
- Parking Lamp
- Powertrain Management
- System Diagram
- Computers and Control Systems
- Emission Control Systems
- Fuel Delivery and Air Induction
- Radiator Cooling Fan Motor
- Radio, Stereo, and Compact Disc
- Starting and Charging
- Trailer Adapter Kit
- Transmission and Drivetrain
- Turn Signals
- Underhood Lamp
- Windows
- Wiper and Washer Systems
- Mechanical Diagrams
- Fluid Diagrams
- Automatic Transmission/Transaxle
- Engine Lubrication
- Vacuum and Vapor Hose Diagrams
- Components
- Additional Information
- Miscellaneous Components
- A/C Accumulator
- A/C Compressor
- Battery
- Battery Junction Block
- Blower Resistor
- Brake Modulator Valve
- Cigarette Lighter
- Coil Assembly
- Digital Ratio Adapter Controller
- Diode
- Diode Array
- Distributor, Ignition
- Expansion Tube, A/C
- Expansion Valve
- Front Speaker, LH
- Front Speaker, RH
- Fuel Injector
- Fuel Pump
- Fuse Block
- Fusible Link
- Generator
- Hazard Flasher
- Horn
- I/P Compartment Box
- Idle Air Control Actuator
- In-Line Diode
- In-Line Fuse
- Radio
- Rear Door Speaker, LH
- Rear Door Speaker, RH
- Rear Speaker, LH
- Rear Speaker, RH
- Side Door Contact
- Speaker, Front
- Speaker, Rear
- Turn Signal Flasher
- Visor Vanity Mirror
- Windshield Washer Pump
- Modules
- Motors
- Auxiliary Heater Blower Motor
- Blower Motor
- Cruise Control Servo Motor
- Door Lock Motor, LH
- Door Lock Motor, Rear
- Door Lock Motor, RH
- Door Lock Motor, Sliding Side
- Power Mirror Motor Assembly, LH
- Power Mirror Motor Assembly, RH
- Power Window Motor
- Seat Motor
- Starter Motor
- Starter Motor Solenoid
- Windshield Wiper Motor
- Relays
- Sensors
- Solenoids
- Switches
- A/C Selector Switch
- Auxiliary A/C Blower Switch
- Auxiliary Heater Control Switch
- Backup Lamp & Transmission Position Switch
- Blower Switch
- Buzzer Switch
- Cluster Switches
- Coolant Temperature Switch
- Door Jamb Switch, LH
- Door Jamb Switch, Rear
- Door Jamb Switch, Sliding Side
- Door Lock Switch, LH
- Door Lock Switch, RH
- Evaporator Pressure Control Switch
- Fog Lamp Switch
- Fuel Pump Oil Pressure Switch
- Headlamp Dimmer Switch
- Headlamp Switch
- Heater Blower Switch
- High Pressure Cutout Switch
- Hydro-Boost Pressure Warning Switch
- Ignition Switch
- Panel & Interior Lamps Control Switch
- Park/Neutral Switch
- Parking Brake Warning Switch
- Power Mirror Switch
- Power Window Switch
- Pressure Cycling Switch
- Seat Control Switch
- Stop Lamp & TCC Switch
- TCC Stoplamp Switch
- Connectors
- Connectors By Component
- Connectors By Number
- C100-C199
- C200-C299
- C200
- C200A
- C201
- C202
- C202A
- C203
- C204
- C205
- C206
- C207
- C208
- C209
- C210
- C211
- C212
- C213
- C214
- C215
- C216
- C217
- C218
- C219
- C220
- C221
- C222
- C223
- C224
- C225
- C226
- C228
- C229
- C230
- C231
- C232
- C233
- C234
- C236
- C237
- C238
- C239
- C240
- C241
- C242
- C243
- C244
- C245
- C246
- C247
- C248
- C249
- C250
- C251
- C252
- C253
- C254
- C255
- C256
- C257
- C258
- C259
- C260
- C261
- C262
- C264
- C266
- C268
- C269
- C271
- C272
- C273
- C274
- C275
- C276
- C277
- C278
- C279
- C280
- C281
- C283
- C284
- C285
- C286
- C287
- C288
- C289
- C290
- C291
- C292
- C293
- C294
- C294A
- C295
- C296
- C297
- C298
- C299
- C300-C399
- C400-C499
- C500-C599
- C600-C699
- C800-C899
- C900-C999
- Pictorial Views
- Fuse and Fusible Links
- Grounds
- Splices
- Grommets
- Harness
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Automatic Transmission/Transaxle
- System Specifications
- Accumulator, A/T
- Bell Housing, A/T
- Case, A/T
- Clutch, A/T
- Extension Housing, A/T
- Fluid Line/Hose, A/T
- Fluid Pan, A/T
- Fluid Pressure Sensor/Switch, A/T
- Fluid Pump, A/T
- Shift Linkage, A/T
- Shift Solenoid, A/T
- Torque Converter
- Transmission Mount, A/T
- Transmission Pressure Test Port, A/T
- Transmission Speed Sensor, A/T
- Transmission Temperature Sensor/Switch, A/T
- Valve Body, A/T
- Brake Caliper
- Brake Hose/Line
- Brake Master Cylinder
- Brake Rotor/Disc
- Clutch Master Cylinder
- Clutch Pedal Assembly
- Clutch Slave Cylinder
- Compressor Clutch
- Compressor Clutch Hub
- Computers and Control Systems
- Differential Assembly
- Fastener Strength Identification
- Rear Axle
- Distributor, Ignition
- Drum Brake System
- Engine
- System Specifications
- Camshaft, Lifters and Push Rods
- Cylinder Block Assembly
- Cylinder Head Assembly
- Engine Mount
- Intake Manifold
- Oil Pan, Engine
- Oil Pump, Engine
- Rear Crankshaft Main Bearing Seal
- Timing Cover
- Exhaust Manifold
- Fan Blade
- Fan Clutch
- Firing Order
- Flex Plate
- Flywheel
- Fuel Delivery and Air Induction
- Manual Transmission/Transaxle
- Power Brake Assist
- Pressure Plate
- Spark Plug
- Steering and Suspension
- Thermostat, Engine Cooling
- Water Pump
- Automatic Transmission/Transaxle
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
- Tools and Equipment
- Circuit Tester
- Connector Test Adapter Kit
- Fillpipe Restrictor Dowel
- Fuel Line Quick Connect Separator
- Fuel Pressure Gauge
- High Impedance Multimeter
- IAC System Monitor
- Injector Test Light
- Metri-Pack Terminal Remover
- PCM Connector Terminal Remover
- Scan Tool
- Unpowered Test Light
- Vacuum Pump With Gauge
- Weather Pack Terminal Remover
Diagnostic Trouble Codes
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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