🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2002 Engine Type: Gasoline Engine Displacement Liters: 2.5 Codes Chassis Code: GD/GG Engine Codes: EJ251, EJ253 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, Subaru owners Value Proposition: Empowers users with factory-level knowledge for accurate and efficient maintenance and repair Competitive Analysis Alternatives: Aftermarket manuals (Haynes, Chilton) may lack factory-specific details and accuracy Key Features Factory Authenticity: Directly from Subaru, ensuring accuracy and completeness Diagrams And Illustrations: Superior clarity in visual aids compared to generic guides Diagnostics: In-depth troubleshooting guides for complex issues 📋 Manual Details Coverage Areas Coverage Scope: Complete factory service and repair Supported Models: All Subaru Impreza 2.5L (gasoline) models for 2002 Page Count Page Count: Estimated 1000+ pages (typical for comprehensive factory manuals) Manual Type Manual Type: Factory Service Manual Language Language: English Format Format: Digital (likely PDF) - optimized for easy-to-read text and diagrams 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, cylinder head, pistons, crankshaft, timing belt, lubrication system, cooling system Engine Management: Fuel injection, ignition system, emissions control, ECU diagnostics, sensor data Transmission: Manual and automatic transmission overhaul, clutch system, driveline components (axles, differentials) Brakes: Brake system components, ABS, hydraulic systems, parking brake Suspension Steering: Front and rear suspension components, steering rack, power steering system Electrical System: Wiring diagrams, charging system, starting system, lighting, instrument cluster, body control modules HVAC: Heating, ventilation, and air conditioning system diagnosis and repair Body Chassis: Body panel removal and installation, interior trim, chassis components Safety Systems: Airbag system diagnosis and service precautions Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks Troubleshooting: Diagnostic flowcharts, common fault diagnosis for all systems Repair: Step-by-step repair procedures for all major and minor components Diagnostics: OBD-II diagnostics, fault code interpretation, sensor testing Rebuilding: Complete engine and transmission rebuilding procedures with specifications Technical Depth Depth: Comprehensive, from basic DIY maintenance to advanced professional diagnostics and rebuilds Diagrams: High-quality, detailed diagrams and illustrations for clarity Specifications: Includes torque values, clearances, fluid capacities, and electrical specifications 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content for quick information retrieval Printable: Printable pages for physical reference Print Quality Diagram Quality: High resolution for clarity and detail Text Clarity: Sharp and readable text Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ251 (likely for base models), EJ253 (likely for higher trims) Configuration: Horizontally-opposed (Boxer) 4-cylinder Bore X Stroke: 92.0 mm x 91.0 mm (approx.) Compression Ratio: 9.7:1 (approx.) Performance Horsepower Hp: 165 hp @ 5600 rpm (approx. for EJ251) Torque Lb-Ft: 166 lb-ft @ 4000 rpm (approx. for EJ251) Fuel System Induction: Naturally aspirated, Multi-point Fuel Injection (MPI) Fuel Type: Unleaded gasoline, Octane rating 87 minimum (91 recommended by Subaru) Maintenance Items Timing Belt Replacement Interval: 60,000 miles or 5 years (critical maintenance item) Spark Plug Type: Iridium (e.g., NGK PFR6B) 🔧 Transmission Standard Type: 5-speed manual transmission Optional Type: 4-speed automatic transmission (with electronic control) Features AWD System: Symmetrical All-Wheel Drive (standard on all Impreza models) Maintenance Manual Transmission Fluid Spec: Subaru Extra-S Gear Oil (or equivalent API GL-5 75W-90) Automatic Transmission Fluid Spec: Subaru ATF-HP (or equivalent Dexron III compatible) 📐 Dimensions Exterior Length: Approx. 174.5 inches Width: Approx. 66.7 inches Height: Approx. 56.1 inches (sedan), 57.7 inches (wagon) Wheelbase: Approx. 101.4 inches Weights Curb Weight: Approx. 2900 - 3100 lbs (depending on body style and transmission) Gross Vehicle Weight Rating: Approx. 4200 lbs (typical) Wheels Tires Wheel Bolt Pattern: 5 x 100 mm Standard Tire Size: 205/55R16 Optional Tire Size: 215/40R17 (on certain trims) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-star (driver and passenger) NHTSA Side Impact: 4-star (front and rear passenger) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Optional Traction Control System (TCS) Passive Features Airbags: Dual front airbags, optional side airbags Seatbelts: Front seat pretensioners with force limiters, 3-point rear seatbelts Child Safety Latch Anchors: Lower Anchors and Tethers for CHildren (LATCH) system 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with CD player, optional cassette, 4 or 6 speaker system Display: Basic LCD display for radio and clock Driver Assistance Cruise Control: Standard on most trims Keyless Entry: Optional keyless entry and remote start Connectivity Auxiliary Input: No standard auxiliary audio input; aftermarket solutions available 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 3.75 months (severe driving), 7,500 miles or 7.5 months (normal driving) - consult manual for specific conditions Engine Air Filter: Inspect every 15,000 miles, replace as needed (typically every 30,000 miles) Cabin Air Filter: Replace every 15,000 miles or 1 year Coolant Flush: Initial drain and fill at 30,000 miles or 3 years, then every 30,000 miles or 3 years thereafter Fluid Specifications Engine Oil Type: SAE 5W-30,...