Subaru Impreza 1992-1995 Factory Service Repair Manual
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🏷️ Basic Information Identification Make: Subaru Model: Impreza Generation: First Generation (GC/GF/GM) Model Years Covered: 1992, 1993, 1994, 1995 👋 Introduction Market Position Segment: Compact Car / Sport Compact Target Audience: Enthusiasts, DIY mechanics, and professional automotive repair shops. Competitive Analysis Key Competitors: Honda Civic, Toyota Corolla, Mitsubishi Lancer, Mazda Protege. Key Features AWD Availability: Subaru's signature Symmetrical All-Wheel Drive system offered across most trims. Performance Variants: Introduction of the WRX (World Rally eXperimental) performance variant in later years of this generation. Practicality: Offered in sedan and wagon (Impreza Outback Sport) body styles, balancing sportiness with practicality. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Format: Download PDF Completeness: Complete Official Factory Documentation 📖 Manual Coverage Systems Covered Engine Overhaul: Detailed procedures for engine disassembly, inspection, repair, and reassembly. Fuel System: Fuel injection system diagnosis, pump, injectors, pressure regulator, and evaporative emission control. Ignition System: Ignition coil, distributor (if applicable), spark plugs, and ignition timing. Cooling System: Radiator, fan, water pump, thermostat, hoses, and coolant specifications. Lubrication System: Oil pump, oil filter, oil pan, and oil pressure specifications. Exhaust System: Catalytic converter, mufflers, pipes, and emission controls. Transmission Manual: Clutch system, gearshift linkage, and manual transmission overhaul. Transmission Automatic: Automatic transmission diagnosis, fluid service, and component repair. Drivetrain AWD: All-Wheel Drive (AWD) system diagnosis, center differential, and rear differential. Suspension Front: MacPherson strut assembly, control arms, ball joints, and sway bar. Suspension Rear: Multi-link suspension components, shock absorbers, and trailing arms. Steering System: Power steering pump, rack and pinion, tie rods, and alignment specifications. Brake System Front: Disc brake components, calipers, pads, rotors, and hydraulic system. Brake System Rear: Drum brake or disc brake components (depending on trim), parking brake system. Anti Lock Brakes ABS: ABS modulator, wheel speed sensors, and hydraulic control unit. Body Exterior: Panel removal/installation, doors, hood, trunk, bumpers, and glass. Body Interior: Dashboard, seats, trim panels, carpeting, and headliner. HVAC System: Air conditioning, heating, ventilation, blower motor, and climate controls. Electrical System Lighting: Headlights, taillights, interior lighting, and bulb replacement. Electrical System Accessories: Power windows, door locks, mirrors, wipers, horn, and audio system. Instrument Panel: Gauges, warning lights, and instrument cluster diagnosis. Wiring Diagrams: Comprehensive electrical schematics for all systems. Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks, and tire rotations. Scheduled Maintenance: Detailed schedules and procedures for intervals like 30k, 60k, 90k miles. Troubleshooting Guides: Diagnostic charts and procedures for identifying and resolving common faults. Engine Repair: Complete engine rebuild, head gasket replacement, piston and ring service. Transmission Repair: Internal transmission component replacement and adjustment. Brake Service: Brake pad and rotor replacement, caliper service, brake fluid bleeding. Suspension Alignment: Wheel alignment procedures and specifications. Diagnostics Evap: Evaporative Emission Control system diagnosis and repair. Diagnostics ECU: Engine Control Unit (ECU) diagnostic trouble codes (DTCs) and data interpretation. Component Replacement: Step-by-step guides for replacing virtually all components. Technical Depth Diagnostic Capabilities: Advanced diagnostic procedures, including multimeter usage, oscilloscope interpretation, and sensor testing. Rebuild Procedures: Detailed instructions for complete engine and transmission overhauls, including torque specifications and clearances. Component Specifications: Precise measurements, tolerances, and specifications for all parts. Wiring Diagram Detail: High-resolution, comprehensive wiring diagrams with clear component identification. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Searchable text for quick information retrieval. Print Quality Print Readability: High-resolution scans for clear printing of text and diagrams. Printable: Designed for full printing, allowing for a physical reference copy. Binding Type Suggested Binding: Comb binding or spiral binding for lay-flat usability in a workshop environment. Paper Type Recommended Paper: Durable, matte finish paper to minimize glare and withstand workshop conditions. ⚙️ Engine Specifications Primary Engine Engine Code Na: EJ18 (1.8L SOHC) Engine Code Performance: EJ20 (2.0L DOHC, turbocharged for WRX/STI variants) Configuration: Horizontally-Opposed (Boxer) 4-cylinder Performance Horsepower 1.8L: Approx. 110-115 hp @ 5600-6000 rpm Torque 1.8L: Approx. 120-125 lb-ft @ 4000-4400 rpm Horsepower 2.0L Turbo: Approx. 208-227 hp (depending on WRX variant and year) Torque 2.0L Turbo: Approx. 200-240 lb-ft (depending on WRX variant and year) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline Emission Controls: Catalytic Converter, EGR (Exhaust Gas Recirculation), Secondary Air Injection (on some models). 🔧 Transmission Standard Manual Transmission: 5-speed manual Optional Automatic Transmission: 4-speed automatic Features AWD Coupling: Symmetrical All-Wheel Drive system with viscous coupling center differential (manual) or electronically controlled multi-plate transfer clutch (automatic). Clutch Type: Hydraulically operated, single dry plate clutch. 📐 Dimensions Exterior Length Sedan: Approx. 4345 mm (171.1 in) Width: Approx. 1690 mm (66.5 in) Height Sedan: Approx. 1370 mm (53.9 in) Wheelbase: Approx. 2520 mm (99.2 in) Cargo Trunk Volume: Varies by sedan/wagon configuration, typically around 11-13 cubic feet for sedan. Weights Curb Weight Approx: 1250 - 1450 kg (2755 - 3197 lbs), depending on configuration. 🛡️ Safety Features Ratings NHTSA Front Crash Rating: Not...
Enthusiasts, DIY mechanics, and professional automotive repair shops.
Competitive Analysis
Key Competitors:
Honda Civic, Toyota Corolla, Mitsubishi Lancer, Mazda Protege.
Key Features
AWD Availability:
Subaru's signature Symmetrical All-Wheel Drive system offered across most trims.
Performance Variants:
Introduction of the WRX (World Rally eXperimental) performance variant in later years of this generation.
Practicality:
Offered in sedan and wagon (Impreza Outback Sport) body styles, balancing sportiness with practicality.
📋 Manual Details
Coverage Areas
Manual Type:
Factory Service Repair Manual
Language:
English
Format:
Download PDF
Completeness:
Complete Official Factory Documentation
📖 Manual Coverage
Systems Covered
Engine Overhaul:
Detailed procedures for engine disassembly, inspection, repair, and reassembly.
Fuel System:
Fuel injection system diagnosis, pump, injectors, pressure regulator, and evaporative emission control.
Ignition System:
Ignition coil, distributor (if applicable), spark plugs, and ignition timing.
Cooling System:
Radiator, fan, water pump, thermostat, hoses, and coolant specifications.
Lubrication System:
Oil pump, oil filter, oil pan, and oil pressure specifications.
Exhaust System:
Catalytic converter, mufflers, pipes, and emission controls.
Transmission Manual:
Clutch system, gearshift linkage, and manual transmission overhaul.
Transmission Automatic:
Automatic transmission diagnosis, fluid service, and component repair.
Drivetrain AWD:
All-Wheel Drive (AWD) system diagnosis, center differential, and rear differential.
Suspension Front:
MacPherson strut assembly, control arms, ball joints, and sway bar.
Suspension Rear:
Multi-link suspension components, shock absorbers, and trailing arms.
Steering System:
Power steering pump, rack and pinion, tie rods, and alignment specifications.
Brake System Front:
Disc brake components, calipers, pads, rotors, and hydraulic system.
Brake System Rear:
Drum brake or disc brake components (depending on trim), parking brake system.
Anti Lock Brakes ABS:
ABS modulator, wheel speed sensors, and hydraulic control unit.
Body Exterior:
Panel removal/installation, doors, hood, trunk, bumpers, and glass.
Body Interior:
Dashboard, seats, trim panels, carpeting, and headliner.
HVAC System:
Air conditioning, heating, ventilation, blower motor, and climate controls.
Electrical System Lighting:
Headlights, taillights, interior lighting, and bulb replacement.
Electrical System Accessories:
Power windows, door locks, mirrors, wipers, horn, and audio system.
Instrument Panel:
Gauges, warning lights, and instrument cluster diagnosis.
Wiring Diagrams:
Comprehensive electrical schematics for all systems.
Procedures Included
Routine Maintenance:
Oil changes, filter replacements, fluid checks, and tire rotations.
Scheduled Maintenance:
Detailed schedules and procedures for intervals like 30k, 60k, 90k miles.
Troubleshooting Guides:
Diagnostic charts and procedures for identifying and resolving common faults.
Engine Repair:
Complete engine rebuild, head gasket replacement, piston and ring service.
Transmission Repair:
Internal transmission component replacement and adjustment.
Brake Service:
Brake pad and rotor replacement, caliper service, brake fluid bleeding.
Suspension Alignment:
Wheel alignment procedures and specifications.
Diagnostics Evap:
Evaporative Emission Control system diagnosis and repair.
Diagnostics ECU:
Engine Control Unit (ECU) diagnostic trouble codes (DTCs) and data interpretation.
Component Replacement:
Step-by-step guides for replacing virtually all components.
Technical Depth
Diagnostic Capabilities:
Advanced diagnostic procedures, including multimeter usage, oscilloscope interpretation, and sensor testing.
Rebuild Procedures:
Detailed instructions for complete engine and transmission overhauls, including torque specifications and clearances.
Component Specifications:
Precise measurements, tolerances, and specifications for all parts.
Wiring Diagram Detail:
High-resolution, comprehensive wiring diagrams with clear component identification.
📊 Manual Specifications
File Format
File Type:
PDF (Portable Document Format)
Searchability:
Searchable text for quick information retrieval.
Print Quality
Print Readability:
High-resolution scans for clear printing of text and diagrams.
Printable:
Designed for full printing, allowing for a physical reference copy.
Binding Type
Suggested Binding:
Comb binding or spiral binding for lay-flat usability in a workshop environment.
Paper Type
Recommended Paper:
Durable, matte finish paper to minimize glare and withstand workshop conditions.
⚙️ Engine Specifications
Primary Engine
Engine Code Na:
EJ18 (1.8L SOHC)
Engine Code Performance:
EJ20 (2.0L DOHC, turbocharged for WRX/STI variants)
Configuration:
Horizontally-Opposed (Boxer) 4-cylinder
Performance
Horsepower 1.8L:
Approx. 110-115 hp @ 5600-6000 rpm
Torque 1.8L:
Approx. 120-125 lb-ft @ 4000-4400 rpm
Horsepower 2.0L Turbo:
Approx. 208-227 hp (depending on WRX variant and year)
Torque 2.0L Turbo:
Approx. 200-240 lb-ft (depending on WRX variant and year)
Fuel System
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Fuel Type:
Unleaded Gasoline
Emission Controls:
Catalytic Converter, EGR (Exhaust Gas Recirculation), Secondary Air Injection (on some models).
🔧 Transmission
Standard
Manual Transmission:
5-speed manual
Optional
Automatic Transmission:
4-speed automatic
Features
AWD Coupling:
Symmetrical All-Wheel Drive system with viscous coupling center differential (manual) or electronically controlled multi-plate transfer clutch (automatic).
Clutch Type:
Hydraulically operated, single dry plate clutch.
📐 Dimensions
Exterior
Length Sedan:
Approx. 4345 mm (171.1 in)
Width:
Approx. 1690 mm (66.5 in)
Height Sedan:
Approx. 1370 mm (53.9 in)
Wheelbase:
Approx. 2520 mm (99.2 in)
Cargo
Trunk Volume:
Varies by sedan/wagon configuration, typically around 11-13 cubic feet for sedan.
Weights
Curb Weight Approx:
1250 - 1450 kg (2755 - 3197 lbs), depending on configuration.
🛡️ Safety Features
Ratings
NHTSA Front Crash Rating:
Not directly comparable to modern standards; early models typically performed adequately for their era.
Active Features
AWD Stability:
Symmetrical All-Wheel Drive enhances traction and stability, particularly in adverse conditions.
ABS:
Anti-lock Braking System available on select trims, preventing wheel lock-up during hard braking.
Passive Features
Airbags:
Driver and front passenger airbags standard from 1994 onwards (check specific model year/trim).
Seatbelts:
Three-point front and rear seatbelts.
Body Structure:
Reinforced safety cell and crumple zones.
💡 Technology Features
Infotainment
Audio System:
Factory AM/FM/Cassette or CD player, with optional premium sound systems.
Driver Assistance
Cruise Control:
Available on higher trim levels.
Connectivity
Power Features:
Power windows, power door locks, power mirrors available on most models.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,000-5,000 miles or 3-6 months, depending on oil type and driving conditions.
Spark Plug Replacement:
Approximately 30,000 - 60,000 miles (depending on plug type).
Timing Belt Replacement:
Critical maintenance item: typically every 60,000 - 105,000 miles or 7-10 years for EJ engines. Manual will specify exact interval.
Fluid Specifications
Engine Oil Type Na:
API SG/SH or higher, SAE 5W-30 or 10W-30 (check manual for specific ambient temperature recommendations).
Engine Oil Type Turbo:
API SG/SH or higher, SAE 10W-30 or 10W-40 (often requiring synthetic for turbocharged engines).
Coolant Type:
Subaru Super Coolant (or equivalent ethylene glycol-based coolant, typically blue).
Transmission Fluid Manual:
API GL-4 or GL-5 gear oil, SAE 75W-90 (check manual for specific type).