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.
1985 Subaru Hatchback 4WD F4-1781cc 1.8L SOHCFACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
- A L L Diagnostic Trouble Codes ( DTC )
- Relays and Modules
- 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 - Powertrain Management
- Relays and Modules - Restraints and Safety Systems
- Relays and Modules - Steering and Suspension
- Relays and Modules - Windows and Glass
- Relays and Modules - Wiper and Washer Systems
- Sensors and Switches
- Sensors and Switches - Brakes and Traction Control
- Sensors and Switches - Cooling System
- 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
- Fuses and Circuit Breakers
- Service Reminder Indicators
- Wheels and Tires
- Towing Information
- Service Intervals
- Severe Service Defined
- Routine Service
- Normal Service
- 5000 MI or 8000 KM
- 10000 MI or 16000 KM
- 12000 MI or 19200 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
- 125000 MI or 200000 KM
- 130000 MI or 208000 KM
- 135000 MI or 216000 KM
- 140000 MI or 224000 KM
- 145000 MI or 232000 KM
- 150000 MI or 240000 KM
- Severe 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
- 105000 MI or 168000 KM
- 112500 MI or 180000 KM
- 120000 MI or 192000 KM
- 127500 MI or 204000 KM
- 135000 MI or 216000 KM
- 142500 MI or 228000 KM
- 150000 MI or 240000 KM
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
- Seals and Gaskets
- Sensors and Switches - Engine
- Timing Components
- Tune-up and Engine Performance Checks
- Water Pump
- Application and ID
Description and Operation
Locations
Service and Repair
Diagrams
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
- Auxiliary Air Valve (Idle Speed)
- Clutch Switch
- Coolant Temperature Sensor/Switch (For Computer)
- Crankshaft Position Sensor
- Diagnostic Mode Switch/Connector
- Engine Control Module
- Idle Up Control Valve
- Knock Sensor
- Main Relay (Computer/Fuel System)
- Mixture Control Solenoid
- Oxygen Sensor
- Relays and Modules - Computers and Control Systems
- Sensors and Switches - Computers and Control Systems
- Vacuum Switch
- Vehicle Speed Sensor
Service Precautions- Description and Operation
Testing and Inspection- Diagrams
- Technical Service Bulletins
- Emission Control Systems
- Air Injection
- Catalytic Converter
- Deceleration Valve
- Evaporative Emissions System
- Exhaust Gas Recirculation
- Fillpipe Restrictor
- Positive Crankcase Ventilation
- Thermostatic Air Cleaner
- Service Precautions
- Application and ID
- Testing and Inspection
- Diagrams
- Technical Service Bulletins
- Fuel Delivery and Air Induction
- Fuel Pressure
- Idle Speed
- Air/Fuel Mixture
- Altitude Compensator
- Auxiliary Air Valve (Idle Speed)
- Carburetor
- Fillpipe Restrictor
- Fuel Filler Cap
- Fuel Injector
- Fuel Pump
- Fuel Supply Line
- Fuel Tank
- Idle Up Control Valve
- Intake Air Duct
- Main Relay (Computer/Fuel System)
- Relays and Modules - Fuel Delivery and Air Induction
- Turbocharger
- Service Precautions
- Testing and Inspection
- Technical Service Bulletins
- Ignition System
- Firing Order
- Ignition Timing
- Crankshaft Position Sensor
- Distributor
- Ignition Coil
- Ignition Control Module
- Knock Sensor
- Pick-Up Coil
- Relays and Modules - Ignition System
- Sensors and Switches - Ignition System
- Service Precautions
- Description and Operation
- Specifications
- Technical Service Bulletins
- Transmission Control Systems
- Application and ID
- Technical Service Bulletins
- Transmission and Drivetrain
- Actuators and Solenoids - Transmission and Drivetrain
- Automatic Transmission/Transaxle
- Clutch
- Continuously Variable Transmission/Transaxle
- Differential Assembly
- Drive Axles, Bearings and Joints
- Drive/Propeller Shafts, Bearings and Joints
- Flex Plate
- Flywheel
- Lamps and Indicators - Transmission and Drivetrain
- Manual Transmission/Transaxle
- Sensors and Switches - Transmission and Drivetrain
- Transfer Case
- Transmission Control Systems
- Locations
- Technical Service Bulletins
- Brakes and Traction Control
- Starting and Charging
- Sensors and Switches - Starting and Charging
- Battery
- Charging System
- Starting System
- Power and Ground Distribution
- 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
- Air Door
- Ambient Temperature Sensor / Switch HVAC
- Blower Motor
- Blower Motor Relay
- Blower Motor Resistor
- Compressor HVAC
- Compressor Clutch Relay
- Compressor Speed Sensor
- Condenser Fan Motor Relay
- Control Assembly
- Control Module HVAC
- Expansion Valve
- Fuse HVAC
- Heater Core
- Refrigerant
- Refrigerant Oil
- Relays and Modules - HVAC
- Sensors and Switches - HVAC
- Thermal Limiting Fuse
- 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
- Body and Frame
- Bumper
- Doors, Hood and Trunk
- Frame
- Grille
- Interior Moulding / Trim
- Locks
- Mirrors
- Paint, Striping and Decals
- Relays and Modules - Body and Frame
- Roof and Associated Components
- Seats
- Locations
- Technical Service Bulletins
- Cruise Control
- Instrument Panel, Gauges and Warning Indicators
- Audible Warning Device
- Brake Warning Indicator
- Cigarette Lighter
- Clock
- Dashboard / Instrument Panel
- Door/Trunk Ajar Indicator/Lamp
- Fuel Gauge
- Fuel Gauge Sender
- Instrument Cluster / Carrier
- Key Reminder Switch
- Lamp Out Indicator
- Maintenance Required Lamp/Indicator
- Odometer
- Oil Pressure Sender
- Parking Brake Warning Lamp
- Relays and Modules - Instrument Panel
- Sensors and Switches - Instrument Panel
- Speedometer Cable
- Upshift Indicator - M/T
- Technical Service Bulletins
- Lighting and Horns
- Backup Lamp
- Brake Lamp
- Brake Light Switch
- Courtesy Lamp
- Fog/Driving Lamp
- Hazard Warning Lamps
- Headlamp
- Horn
- Lamp Out Indicator
- Map Light
- Relays and Modules - Lighting and Horns
- Sensors and Switches - Lighting and Horns
- Tail Lamp
- Trunk Lamp
- Turn Signals
- Locations
- Technical Service Bulletins
- Windows and Glass
- Heated Glass Element
- Relays and Modules - Windows and Glass
- Windows
- Technical Service Bulletins
- Wiper and Washer Systems
- Relays and Modules - Wiper and Washer Systems
- Sensors and Switches - Wiper and Washer Systems
- Windshield Washer Pump
- Windshield Washer Spray Nozzle
- Wiper Arm
- Wiper Blade
- Wiper Control Module
- Wiper Gear Box
- Wiper Motor
- Wiper Switch
- Diagrams
- Technical Service Bulletins
- Service Precautions
- Application and ID
- Testing and Inspection
- Locations
- Diagrams
- Diagram Information and Instructions
- Diagnostic Aids
- Exploded Views
- Connector Views
- Electrical Diagrams
- Body & Chassis Wiring
- Power and Ground Distribution
- Audible Warning Device
- Backup Lamp
- Brake Lamp
- Brake Warning Indicator
- Cigarette Lighter
- Clock
- Computers and Control Systems
- Courtesy Lamp
- Cruise Control
- Door Locks
- Door/Trunk Ajar Indicator/Lamp
- Fuel Gauge
- Hazard Warning Lamps
- Headlamp
- Heated Glass Element
- Heating and Air Conditioning
- Horn
- Instrument Cluster / Carrier
- Map Light
- Mirrors
- Parking Brake Warning Lamp
- Radio/Stereo
- Seat Belt Warning Relay
- Seat Belt Warning Timer
- Sunroof / Moonroof
- Tail Lamp
- Trip Computer
- Trunk / Liftgate Lock
- Trunk Lamp
- Turn Signals
- Windows
- Wiper and Washer Systems
- Mechanical Diagrams
- Fluid Diagrams
- Vacuum and Vapor Hose Diagrams
- Components
- Fuse and Fusible Links
- Harness
- Specifications
- Electrical Specifications
- Mechanical Specifications
- Air/Fuel Mixture
- Alignment
- Automatic Transmission/Transaxle
- Axle Shaft Assembly
- Carburetor
- Differential Assembly
- Engine
- Exhaust Manifold
- Flex Plate
- Flywheel
- Fuel Pump
- Heating and Air Conditioning
- Idle Speed
- Ignition System
- Manual Transmission/Transaxle
- Transfer Case
- Pressure, Vacuum and Temperature Specifications
- Capacity Specifications
- Fluid Type Specifications
- Technical Service Bulletins
Tools and Equipment
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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