🏷️ Basic Information Identification Make: Subaru Model: Impreza Codes Chassis Codes: GDA (WRX), GDB (WRX STi), GD2, GD3, GD9, GG2, GG3, GG9 Engine Codes Covered: EJ205 (2.0L Turbocharged H4), EJ207 (2.0L Turbocharged H4), EJ251 (2.5L Naturally Aspirated H4), EJ253 (2.5L Naturally Aspirated H4), EJ255 (2.5L Turbocharged H4), EJ257 (2.5L Turbocharged H4) 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, Subaru owners seeking in-depth knowledge Competitive Analysis Manual Advantage: Comprehensive coverage spanning multiple years and performance variants (WRX/STi), offering factory-level diagnostic and repair data not readily available in generic manuals. Key Features Completeness: Covers all aspects of vehicle maintenance, repair, and troubleshooting for the specified model years. Accessibility: Instant digital download across a wide range of operating systems and devices. Accuracy: Derived from official Subaru factory service information. 📋 Manual Details Coverage Areas Model Years: 2002, 2003, 2004, 2005, 2006 Trim Levels: All trims including WRX and WRX STi Page Count Estimated Page Count: Thousands (Comprehensive Factory Data) Manual Type Type: Service Repair Manual / Workshop Manual / Factory Manual Language Language: English Format File Format: PDF / WinRAR Archive Compatibility Operating Systems: Windows (95, 98, ME, XP, Vista, 7, 8), Linux, MAC OS Device Compatibility: All devices running iOS and Android Delivery Delivery Method: Instant Download via Email 📖 Manual Coverage Systems Covered Engine Mechanical: Engine teardown and assembly, piston and ring replacement, cylinder head service, valve timing, crankshaft and bearing service, oil pump, timing belt/chain service Engine Management: Fuel injection system diagnosis and repair, ignition system (coils, plugs, timing), intake induction, cooling system, exhaust system, lubrication system Powertrain: Manual transmission repair and overhaul, automatic transmission diagnosis and repair, clutch system service, drive shaft and differential maintenance Suspension Steering: Front suspension (struts, control arms, ball joints), rear suspension (multi-link, shocks, springs), wheel alignment specifications, power steering system Brakes ABS: Brake system diagnosis, component replacement (pads, rotors, calipers), ABS system operation and troubleshooting, brake fluid specifications and bleeding procedures Electrical Electronics: Wiring diagrams for all systems, starting and charging systems, lighting, instrument cluster, comfort and convenience systems, audio system Body Chassis: Body panel repair and replacement, interior trim removal and installation, chassis lubrication, rust prevention, underbody components Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspections, tire rotations Diagnostic Troubleshooting: Step-by-step diagnostic procedures for common and uncommon faults, fault code interpretation, electrical system troubleshooting guides Component Repair Rebuild: Detailed instructions for repairing or rebuilding major components like engines, transmissions, and suspension parts Specifications Tolerances: Precise torque specifications, clearances, and measurements for all serviceable parts Wiring Diagrams: Comprehensive electrical system wiring schematics for all circuits Technical Depth Depth Of Coverage: Factory-level detail, covering everything from basic maintenance to complete engine and transmission overhauls, including specialized WRX/STi systems 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content within the PDF Printability: Printable pages Archiving: Provided in a WinRAR archive for efficient download and extraction Print Quality Image Resolution: High resolution for clear diagrams and illustrations Binding Type Binding: Not Applicable (Digital Format) Paper Type Paper Quality: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Horizontally-Opposed (Boxer) 4-Cylinder Displacement Naturally Aspirated: 2.5 Liters (approx. 2457cc) Displacement Turbocharged: 2.0 Liters (approx. 1994cc for EJ205/EJ207), 2.5 Liters (approx. 2457cc for EJ255/EJ257) Performance Horsepower Range: 165-170 hp (NA), 227-237 hp (WRX), 261-300 hp (WRX STi, depending on year and specific model) Torque Range: 166-169 lb-ft (NA), 217-236 lb-ft (WRX), 247-300 lb-ft (WRX STi) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Recommended Fuel: 87 Octane (NA), 91+ Octane (WRX/WRX STi) Engine Management Engine Control Unit: ECU (Engine Control Unit) with detailed diagnostic parameters 🔧 Transmission Standard Manual Transmission: 5-speed Manual (Standard on most NA models), 6-speed Manual (Standard on WRX STi, optional on some WRX) Optional Automatic Transmission: 4-speed Automatic (Optional on NA models) Features All Wheel Drive: Symmetrical All-Wheel Drive (AWD) system with viscous center differential (or DCCD on STi) Fluid Specifications Manual Transmission Fluid: GL-5 75W-90 (Subaru Genuine Gear Oil recommended) Automatic Transmission Fluid: Subaru ATF HP (or Dexron III/Mercon compatible) 📐 Dimensions Exterior Wheelbase: Approx. 100.2 inches (2545 mm) Length: Approx. 173.8 inches (4415 mm) Width: Approx. 68.1 inches (1730 mm) Height: Approx. 56.1 inches (1425 mm) Weights Curb Weight Range: Approx. 2800 - 3300 lbs (1270 - 1497 kg) depending on model and trim Gross Vehicle Weight Rating: Varies by model, typically around 4000-4300 lbs Wheels Tires Wheelbase Bolt Pattern: 5x100 Tire Sizes: Common sizes: 205/50R16, 215/45R17, 225/45R17 (WRX/STi specific sizes may vary) 🛡️ Safety Features Ratings NHTSA Ratings: Generally good for its era, though specific ratings vary by year and test methodology. Check NHTSA records for precise data. Active Features ABS: Standard Anti-lock Braking System Traction Control: Available (Check specific trim levels and years) Limited Slip Differential: Center Differential (Viscous or DCCD on WRX/STi), Rear...