🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Year: 1999-2000 Codes Chassis Code: GC8 (for WRX variants) 👋 Introduction Market Position Segment: Performance Compact / Rally Homologation Special Target Audience: Enthusiasts, DIY mechanics, Subaru WRX owners and technicians Competitive Analysis Competitors: Mitsubishi Lancer Evolution, Ford Escort RS Cosworth, Toyota Celica GT-Four Key Features Performance Focus: Designed for a performance-oriented vehicle known for its turbocharged engine and symmetrical all-wheel-drive system. Dealership Level Info: Provides the same in-depth technical information typically reserved for authorized Subaru service centers. 📋 Manual Details Coverage Areas General Coverage: Engine, Drivetrain, Suspension, Brakes, Electrical System, Body, HVAC, Maintenance, Diagnostics, Troubleshooting, Repair Procedures Page Count Estimated Page Count: 1000+ Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block assembly, pistons, crankshaft, camshafts, timing belt, lubrication system, cooling system Engine Electrical: ECU, sensors (MAP, TPS, O2, knock), ignition system, fuel injection system, starting system, charging system, wiring diagrams Drivetrain: All-Wheel Drive (AWD) system, center differential, front and rear differentials, driveshafts, axles Transmission: 5-speed manual transmission (TY75), clutch system, gear oil specifications Suspension: Front struts, rear struts, control arms, bushings, sway bars, alignment specifications Brakes: Front and rear disc brakes, ABS system, brake fluid specifications, bleeding procedures, parking brake Steering: Power steering system, steering rack, tie rods, power steering fluid Body And Interior: Body panels, doors, windows, locks, interior trim, seats, SRS airbag system HVAC: Air conditioning system, heater core, blower motor, refrigerant, cabin air filter Procedures Included Maintenance: Oil changes, filter replacements, spark plug replacement, coolant flushes, brake fluid changes, transmission fluid changes Troubleshooting: Diagnostic trouble codes (DTCs), symptom-based troubleshooting, common electrical faults, engine performance issues Repair: Engine rebuilds, transmission overhauls, suspension component replacement, brake caliper replacement, electrical component repair Diagnostics: Use of Subaru Select Monitor (SSM), oscilloscope procedures, fuel pressure testing, compression testing Special Tools: Identification and usage of Subaru-specific tools for various repair procedures Technical Depth Depth: Comprehensive, covering everything from routine maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic flowcharts. 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable PDF for quick information retrieval Print Quality: High-resolution scans suitable for printing individual pages or sections Binding Type Binding Type For Physical: N/A (Digital PDF format) Paper Type Paper Type For Physical: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ20G (typically) Engine Type: 2.0L Flat-4 (Boxer), Turbocharged, Intercooled Performance Horsepower Ps: 215-276 PS (varies by market and specific tune, typically around 240 PS for JDM models) Torque Nm: 260-300 Nm (varies by market and specific tune, typically around 290 Nm for JDM models) Fuel System Fuel Delivery: Multi-point fuel injection (MPI), Electronic Fuel Injection (EFI) Fuel Type: Unleaded Premium Gasoline (95 RON or higher recommended) Engine Design Bore X Stroke: 92.0 mm x 75.0 mm Compression Ratio: 8.5:1 Valvetrain: DOHC, 16 valves 🔧 Transmission Standard Transmission Type: 5-speed Manual Transmission Transmission Code: TY75 Series Features Drivetrain System: Symmetrical All-Wheel Drive (AWD) with viscous coupling center differential Fluid Specifications Manual Transmission Fluid: API GL-5, SAE 75W-90 (Subaru Genuine Gear Oil recommended) 📐 Dimensions Exterior Length: Approx. 4350 mm (varies slightly by body style) Width: Approx. 1705 mm Height: Approx. 1435 mm Wheelbase: Approx. 2515 mm Wheel Bolt Pattern: 5x100 mm Weights Curb Weight: Approx. 1300-1350 kg 🛡️ Safety Features Ratings Crash Test Results: Generally good for its era, but specific ratings may vary by region and testing agency. Lacking modern electronic stability control. Active Features AWD System: Symmetrical All-Wheel Drive enhances traction and stability. ABS: Anti-lock Braking System (ABS) standard on WRX models. Passive Features Airbags: Driver and front passenger airbags, potential for side airbags on later models or as an option. Seatbelts: 3-point front and rear seatbelts. 💡 Technology Features Infotainment Head Unit: Basic factory radio/cassette or CD player, often with aftermarket upgrades. Gauges: Performance-oriented gauge cluster including boost gauge, tachometer, and speedometer. Driver Assistance Traction Control: No electronic stability or traction control systems; relies on mechanical AWD and driver skill. 🔧 Maintenance Service Intervals Engine Oil Change: Every 3,000-5,000 miles (5,000-8,000 km) or 3-6 months, depending on driving conditions (severe use may require more frequent changes). Air Filter Replacement: Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection. Spark Plug Replacement: Every 30,000-60,000 miles (48,000-96,000 km), depending on plug type (iridium recommended). Timing Belt Replacement: Crucial: Every 60,000-100,000 miles (96,000-160,000 km) or 5-7 years. Failure is catastrophic. Coolant Flush: Every 30,000 miles (48,000 km) or 2 years. Fluid Specifications Engine Oil: API SG or higher, SAE 10W-30 or 10W-40 (check manual for specific climate recommendations). Synthetic oil highly recommended. Coolant: Subaru Super Coolant (blue) or equivalent ethylene glycol-based antifreeze with corrosion inhibitors. 50/50 mix with distilled water. Brake Fluid: DOT 3 or DOT 4. Power...