🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2001 Codes Chassis Code: GD/GG Engine Codes Covered: EJ201, EJ202, EJ251, EJ252, EJ253, EJ205 (WRX) 👋 Introduction Market Position Vehicle Segment: Compact car, known for its all-wheel-drive capability and rally heritage. Competitive Analysis Competitors: Honda Civic, Toyota Corolla, Mazda 3, Mitsubishi Lancer, Ford Focus. Key Features All Wheel Drive: Subaru's signature Symmetrical All-Wheel Drive system was a major selling point, offering superior traction and handling. Rally Heritage: The Impreza's strong ties to World Rally Championship (WRC) success influenced its performance-oriented image. 📋 Manual Details Coverage Areas Coverage Summary: Comprehensive service, repair, and diagnostic information for all systems. Page Count Estimated Page Count: 1500+ Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (Likely PDF, though physical copies exist) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, inspection, repair, timing belt, cylinder heads, pistons, crankshaft. Engine Performance: Fuel injection system, ignition system, emissions control, turbocharger systems (for WRX models). Transmission Drivetrain: Manual transmission (5-speed), automatic transmission (4-speed), clutch, driveshafts, differentials, AWD system. Suspension Steering: Front and rear suspension components, struts, springs, control arms, power steering system, wheel alignment. Brakes: Front and rear brake systems (disc/disc or disc/drum depending on trim), ABS system, parking brake. Electrical Electronics: Wiring diagrams, starter system, charging system, lighting, power windows, central locking, SRS (airbag) system. HVAC: Heating, ventilation, and air conditioning system components and service. Body Chassis: Body panels, doors, interior trim, glass, underbody protection, frame components. Procedures Included Maintenance Procedures: Oil changes, fluid checks and replacements, filter replacements, spark plug replacement, belt inspection/replacement. Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, OBD-II diagnostic trouble codes (DTCs) and their meanings. Repair Procedures: Detailed step-by-step instructions for component replacement, overhaul, and adjustment. Rebuild Procedures: Complete engine and transmission rebuild procedures, including torque specifications and clearances. Calibration Adjustment: Idle speed control, throttle body cleaning/adjustment, clutch engagement point adjustment. Technical Depth Depth Level: Factory-level diagnostics and repair, suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format Digital Format Details: Typically provided as a searchable PDF, allowing for easy navigation and keyword searching. High resolution for clear diagrams. Print Quality Print Quality Description: If printed, expected to be high-quality with clear text and diagrams. Digital versions offer scalable graphics. Binding Type Binding Type Description: For physical copies: Coil-bound or perfect-bound for lay-flat usability in a workshop environment. Paper Type Paper Type Description: For physical copies: Durable, coated paper to withstand grease and workshop conditions. ⚙️ Engine Specifications Primary Engine Engine Options: 2.5L Naturally Aspirated (EJ251/EJ252/EJ253), 2.0L Turbocharged (EJ205 for WRX) Performance Naturally Aspirated Horsepower: Approximately 165-175 hp (depending on specific engine variant and market) Naturally Aspirated Torque: Approximately 170-177 lb-ft (depending on specific engine variant and market) Turbocharged Horsepower Wrx: Approximately 227 hp Turbocharged Torque Wrx: Approximately 217 lb-ft Fuel System Fuel Injection Type: Multi-point fuel injection (MPI) Fuel Type: Unleaded gasoline (87 octane minimum for NA, 91 octane recommended for WRX) Engine Internals Valvetrain: DOHC, 16 valves (per cylinder head) Timing Belt Replacement Interval: Every 105,000 miles or 105 months, whichever comes first (critical maintenance item). 🔧 Transmission Standard Standard Transmission Type: 5-speed manual transmission Optional Optional Transmission Type: 4-speed automatic transmission Features AWD System: Viscous coupling center differential (manual) or electronically controlled clutch pack (automatic) distributing power to all wheels. Fluid Specifications Manual Transmission Fluid: API GL-5, SAE 75W-90 gear oil (Subaru Extra-S or equivalent recommended) Automatic Transmission Fluid: Subaru ATF-HP (Type H6) or equivalent 📐 Dimensions Exterior Length: Approx. 173.8 inches (4415 mm) Width: Approx. 66.7 inches (1695 mm) Height: Approx. 56.1 inches (1425 mm) Wheelbase: Approx. 99.9 inches (2535 mm) Weights Curb Weight: Approx. 2,850 - 3,150 lbs (depending on trim and drivetrain) Gross Vehicle Weight Rating: Varies by model and configuration, typically around 4,000 lbs. 🛡️ Safety Features Ratings NHTSA Front Impact Rating: Likely 4-star driver, 5-star passenger (based on typical ratings for this era). IIHS Frontal Offset Rating: Good (for models tested, generally performed well for its class). Active Features Anti Lock Brakes: Standard on most trims, often combined with Electronic Brakeforce Distribution (EBD). All Wheel Drive: Provides enhanced traction and stability in various driving conditions. Passive Features Airbags: Frontal airbags for driver and passenger, optional side airbags on some trims. Seatbelts: 3-point seatbelts with pretensioners and load limiters for front occupants. 💡 Technology Features Infotainment Audio System: Standard AM/FM/CD player, with optional premium audio systems and cassette players on some trims. Display: Basic digital clock and radio display. Driver Assistance Cruise Control: Available on most trims. Keyless Entry: Available on higher trim levels. Connectivity Connectivity Features: Limited by era; primarily focused on radio and CD playback. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-7,500 miles or 6-12 months, depending on driving conditions and oil type used (check manual for specifics). Air Filter...