🏷️ Basic Information Identification Make: Subaru Model: GL-10 Codes Chassis Codes: A3 (includes variations like A3F, A3H depending on specific market and powertrain) Generation Generation Designation: Third Generation (subsequent generations of the Leone platform) 👋 Introduction Market Position Market Segment: Compact AWD/4WD passenger car and wagon. Competitive Analysis Key Competitors: Toyota Corolla/Cavalier, Honda Civic/Accord, Nissan Sentra/Stanza, Mazda 323/626, Mitsubishi Lancer/Galant. Key Features Unique Selling Proposition: Subaru's signature Symmetrical All-Wheel Drive (AWD) system, robust engineering, and Boxer engine layout provided superior traction and handling in various conditions. Target Audience Intended User: DIY mechanics, independent repair shops, Subaru enthusiasts looking for detailed repair and maintenance information. 📋 Manual Details Coverage Areas Manual Coverage Years: 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994 Page Count Estimated Page Count: 1500+ Manual Type Manual Type: Workshop Service Repair Manual (Factory Service Manual) Language Language: English Format Digital Format: Downloadable Digital File (likely PDF) 📖 Manual Coverage Systems Covered Powertrain Systems: Engine mechanical (EA71, EA81, EA82 series), Engine control systems (ECU/EFI diagnostics, ignition), Fuel system (carburetor & EFI), Exhaust system, Clutch, Manual transmission, Automatic transmission (4EAT, 5EAT), Drivetrain (front, rear, center differentials, AWD systems). Chassis Systems: Suspension (front struts, rear independent suspension/multi-link), Steering system (power steering diagnostics), Brakes (front disc, rear drum/disc, ABS diagnostics for later models), Wheels and tires. Electrical Systems: Wiring diagrams, lighting, instrumentation, charging system (alternator, battery), starting system, power accessories, climate control system. Body Systems: Body construction, exterior panels, doors, windows, interior trim, HVAC system, body electrical components. Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes (oil, coolant, transmission fluid), filter replacements, lubrication, belt inspection/replacement. Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs) for applicable models, electrical system fault finding. Repair Procedures: Step-by-step instructions for major component removal and installation, engine overhaul, transmission rebuild, brake service, suspension component replacement, body panel repair. Technical Adjustments: Engine timing adjustments, carburetor adjustments, clutch adjustment, alignment specifications, brake bleeding procedures. Technical Depth Depth Of Coverage: Comprehensive: Covers basic maintenance to complete engine and transmission overhauls, detailed electrical diagnostics, and bodywork. 📊 Manual Specifications File Format Digital File Type: PDF (Portable Document Format) Searchability: Likely searchable text-based PDF, allowing for keyword searching of specific components or procedures. Print Quality Digital Print Quality: High resolution, suitable for printing individual pages or sections. Binding Type Original Binding: N/A (Digital Download) Paper Type Original Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Family: Subaru EA series Boxer (horizontally opposed) Common Engine Variants: EA71 (1.6L), EA81 (1.8L), EA82 (1.8L SOHC/DOHC, Turbocharged) Performance Horsepower Range: Approx. 70 hp (EA71) to 135 hp (EA82 Turbocharged) Torque Range: Approx. 80 lb-ft (EA71) to 134 lb-ft (EA82 Turbocharged) Fuel System Fuel Delivery Options: Carbureted (Keihin, Hitachi) or Electronic Fuel Injection (EFI) depending on model year and trim. Fuel Type: Unleaded Gasoline Engine Design Engine Layout: Horizontally Opposed (Boxer) Cylinder Count: 4 🔧 Transmission Standard Standard Transmission Type: 4-speed Manual Transmission Optional Optional Transmission Type: 5-speed Manual Transmission, 3-speed Automatic Transmission, 4-speed Automatic Transmission (4EAT, introduced in later years for certain models). Features Drivetrain Configuration: Full-Time All-Wheel Drive (AWD) or Part-Time 4-Wheel Drive (4WD) depending on model/trim. 📐 Dimensions Exterior Body Styles: 4-door Sedan, 5-door Wagon, 3-door Hatchback, 5-door Hatchback/Wagon (depending on specific model generation designation within GL-10 range). Weights Curb Weight Range: Approx. 2200-2700 lbs (1000-1225 kg) Gross Vehicle Weight Rating Range: Approx. 3300-3800 lbs (1500-1725 kg) 🛡️ Safety Features Ratings Safety Ratings Era: Pre-NHTSA prominent ratings for this era; focus on passive safety features. Active Features Active Safety Features: Subaru's Symmetrical AWD for enhanced traction and stability, front disc brakes, rear drum brakes (later models may feature rear discs on higher trims). ABS availability on later models. Passive Features Passive Safety Features: Collapsible steering column, reinforced safety cage, three-point seatbelts (lap belts in rear sometimes), padded interior surfaces. 💡 Technology Features Infotainment Infotainment System Era: Basic for the era: AM/FM radio, cassette player, optional graphic equalizer or premium sound system. Driver Assistance Driver Assistance Features: Limited to the AWD/4WD system for traction. ABS became available on higher trims and later models within this range. Connectivity Connectivity Features: N/A (No modern connectivity features like Bluetooth or USB). 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,000-5,000 miles (5,000-8,000 km) or 3-6 months, depending on driving conditions and specific engine oil used. Engine Coolant Change Interval: Every 24,000-30,000 miles (40,000-50,000 km) or 2-3 years, using Subaru-specific coolant or a compatible type. Timing Belt Replacement Interval: For EA82 engines, typically 60,000 miles (96,000 km). Crucial for preventing catastrophic engine damage. Fluid Specifications Engine Oil Specification: API SG or higher, SAE 10W-30 or 10W-40 typically recommended (refer to manual for specific viscosity based on temperature). Transmission Fluid Specification Manual: API GL-5, SAE 75W-90 or 75W-140 for manual gearboxes and differentials. Transmission Fluid Specification Automatic: ATF Dexron-II or equivalent for...