🏷️ Basic Information Identification Make: Subaru Model: Impreza Model Generation: Second Generation (GD/GG) Applicable Years: 1999-2001 Codes Chassis Codes: GD (Sedan), GG (Wagon) 👋 Introduction Market Position Market Segment: Compact car, rally-inspired performance and practicality. Competitive Analysis Key Competitors: Mitsubishi Lancer, Honda Civic, Toyota Corolla, Ford Focus. Key Features All Wheel Drive: Standard Symmetrical All-Wheel Drive (AWD) system across most trims, a significant differentiator. Performance Variants: Introduction of the WRX (World Rally eXperimental) model, offering turbocharged performance and enhanced handling. Body Styles: Available in sedan and wagon (Sport Wagon) body styles, offering versatility. 📋 Manual Details Coverage Areas Primary Coverage: Complete Workshop Service and Repair Regional Coverage: Global (excluding specific regional variants not detailed) Page Count Estimated Page Count: 1500-2500+ (depending on specific publication and included supplements) Manual Type Manual Type: Factory Authorized Workshop Manual / Service Manual Language Language: English Format Format: Digital (PDF) / Printable 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel and emissions control, cooling system, lubrication system, ignition system, starting and charging system, exhaust system. Transmission Drivetrain: Manual transmission (5-speed), automatic transmission (4-speed), clutch, driveshafts, differentials, all-wheel drive system. Suspension Steering: Front suspension (MacPherson strut), rear suspension (multi-link), steering system (rack and pinion, power steering). Brakes: Front disc brakes, rear disc brakes (ventilated on some performance models), ABS system, parking brake. Electrical: Wiring diagrams, lighting system, interior and exterior electronics, instrument cluster, battery, alternator, starter, fuses, relays. Body Chassis: Body construction, exterior panels, doors, windows, interior trim, climate control system, chassis components. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt replacement. Diagnostics: Troubleshooting guides, symptom analysis, diagnostic trouble codes (DTCs), scan tool usage (OBD-II). Repair: Component removal and installation, engine rebuild procedures, transmission overhaul, brake caliper replacement, suspension component replacement. Adjustments: Valve lash adjustment (if applicable), clutch adjustment, brake bleeding, wheel alignment procedures. Wiring Schematics: Detailed electrical wiring diagrams for all systems, component locations. Technical Depth Depth: Comprehensive, covering basic maintenance to full mechanical and electrical system overhauls. Includes torque specifications, diagnostic flowcharts, and precise repair instructions. 📊 Manual Specifications File Format File Format: Searchable PDF Print Quality Print Quality: High-resolution scans suitable for printing all pages with clear diagrams and text. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ251 (Naturally Aspirated) Engine Type: 2.5L SOHC Flat-4 (Boxer) Bore X Stroke: 99.5 mm x 79.0 mm Compression Ratio: 9.7:1 Horsepower: 165 hp @ 5600 rpm Torque: 166 lb-ft @ 4000 rpm Performance Engine Code Wrx: EJ205 (Turbocharged) Engine Type Wrx: 2.0L DOHC Turbocharged Flat-4 (Boxer) Horsepower Wrx: 227 hp @ 5600 rpm Torque Wrx: 217 lb-ft @ 3000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (MPI) Recommended Fuel: 87 Octane (165hp), 91 Octane or higher for WRX 🔧 Transmission Standard Transmission Type Na: 5-Speed Manual Transmission Type AWD Na: 4-Speed Automatic with AWD Optional Transmission Type Wrx: 5-Speed Manual Features AWD System: Symmetrical All-Wheel Drive with viscous coupling center differential. Clutch Type: Hydraulically operated, single dry plate (manual transmission). 📐 Dimensions Exterior Length Sedan: 4415 mm (173.8 in) Length Wagon: 4405 mm (173.4 in) Width: 1700 mm (66.9 in) Height Sedan: 1410 mm (55.5 in) Height Wagon: 1445 mm (56.9 in) Wheelbase: 2510 mm (98.8 in) Track Width Front: 1470 mm (57.9 in) Track Width Rear: 1475 mm (58.1 in) Weights Curb Weight Manual: Approx. 1300-1400 kg (2866-3086 lbs) Curb Weight Auto: Approx. 1350-1450 kg (2976-3197 lbs) Gross Vehicle Weight Rating: Varies by model, typically around 1800 kg (3968 lbs) Cargo Cargo Volume Sedan: Approx. 11.4 cu ft Cargo Volume Wagon: Approx. 37.5 cu ft (seats up), 65.1 cu ft (seats down) 🛡️ Safety Features Ratings NHTSA Frontal Impact: Not specifically rated for these years by NHTSA in available public data. IIHS Crash Test: Not specifically rated for these years by IIHS in available public data. Active Features ABS: Available (standard on some trims, optional on others). Traction Control: Not commonly available on 1999-2001 models. Passive Features Airbags: Driver and passenger front airbags. Seatbelts: Three-point height-adjustable front seatbelts with pretensioners; three-point rear seatbelts. Child Seat Anchors: LATCH system not standard on these model years. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD or cassette player with standard speaker configuration. User Interface: Basic analog gauges and physical controls for HVAC and audio. Driver Assistance Cruise Control: Available on most trims. Connectivity Aux Input: Not available on factory head units. Bluetooth: Not available on factory head units. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 3 months (severe conditions), 7,500 miles or 6 months (normal conditions). Air Filter Replacement: Every 15,000 miles or 12 months. Spark Plug Replacement: Every 60,000 miles (NGK Platinum). Timing Belt Replacement: Every 105,000 miles or 7 years. (Crucial for EJ series engines). Fluid Specifications...