🏷️ Basic Information Identification Make: Subaru Model: Impreza Model Generation: Second Generation (GD/GG) Model Years Covered: 2006, 2007 Codes Chassis Codes: GD (Sedan), GG (Wagon) 👋 Introduction Market Position Positioning: The 2006-2007 Subaru Impreza represented the enthusiast-focused second generation, known for its all-wheel-drive system and strong performance variants like the WRX and STI. Competitive Analysis Competitors: Competed against models like the Mitsubishi Lancer Evolution, Honda Civic Si, Volkswagen GTI, and Mazda 3. Key Features AWD System: Subaru's Symmetrical All-Wheel Drive as standard, enhancing traction and handling. Performance Variants: Iconic WRX and WRX STI models offering turbocharged engines and performance tuning. Body Styles: Available in both sedan (GD) and wagon (GG) configurations, offering versatility. 📋 Manual Details Coverage Areas General Information: True Engine Sti: True Engine Naturally Aspirated: True Engine Turbocharged: True Transmission Systems: True Chassis Suspension: True Body Panels And Structure: True Electrical System Wiring: True Mechanism And Function Systems: True Page Count Estimated Page Count: Detailed but not specified. Likely extensive, covering all sections. Manual Type Type: Factory Service Repair Manual Language Language: English Format File Format: PDF Compatibility: Windows & Mac Requirements: Adobe PDF Reader, WinZip 📖 Manual Coverage Systems Covered Engine Management: Diagnosis and repair of engine control modules (ECU), sensors, actuators, ignition system, fuel system. Powertrain: Detailed coverage of EJ25 naturally aspirated and turbocharged engines, including timing belt/chain service, component replacement, and internal engine repair. Sti Engine Specifics: Dedicated sections for the EJ257 engine, including turbocharger system, intercooler, and performance-related diagnostics. Naturally Aspirated Engine Specifics: Coverage for the EJ253 engine, focusing on maintenance and repair unique to the non-turbo variant. Transmission Drivetrain: Manual and automatic transmission service, differential maintenance, driveshaft and axle shaft repair, clutch service, and AWD system. Suspension Steering: Front and rear suspension component replacement (struts, control arms, bushings), steering system diagnosis and repair, wheel alignment specifications. Braking System: Brake pad and rotor replacement, caliper service, brake fluid bleeding procedures, ABS system diagnosis. Body And Interior: Door panel removal, seat adjustment, exterior trim replacement, HVAC system service, and body repair guidelines. Electrical And Electronics: Comprehensive wiring diagrams, fuse box locations, lighting system service, power accessory diagnosis, and component testing. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug service, fluid checks and top-offs, tire rotation. Diagnostic Troubleshooting: Step-by-step troubleshooting guides for common and complex issues, fault code interpretation, diagnostic connector usage. Component Replacement: Detailed instructions for replacing major components like engines, transmissions, alternators, starters, radiators, and more. Engine Rebuilding: Torque specifications, assembly procedures, piston ring installation, bearing clearances for engine overhauls. Timing Belt Service: Critical procedures for timing belt replacement, including alignment marks and tensioner adjustment. Brake System Service: Detailed steps for pad, rotor, caliper, and brake line replacement, including bleeding. Electrical Component Testing: Procedures for testing sensors, actuators, relays, and other electrical components using a multimeter. Climate Control Service: Refrigerant handling, component replacement (compressor, evaporator), leak detection. Technical Depth Depth: Comprehensive, covering everything from basic maintenance to advanced diagnostics and complete overhauls. Detail Level: Step-by-step instructions with diagrams and illustrations for repair and maintenance procedures. Special Tools: Identifies specific Subaru specialty tools required for certain repairs. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable due to PDF format, facilitating quick information retrieval. Print Quality Quality: High resolution, allowing for zoom to view fine details and diagrams clearly. Binding Type Binding: N/A (Digital Download - PDF) Paper Type Paper: N/A (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Base Engine Naturally Aspirated: EJ253 - 2.5L Flat-4 (SOHC) Performance Engine Wrx: EJ255 - 2.5L Flat-4 Turbocharged (DOHC) Performance Engine Sti: EJ257 - 2.5L Flat-4 Turbocharged (DOHC) Performance Horsepower Base Naturally Aspirated: Approximately 165-175 hp @ 5600-6000 rpm Torque Base Naturally Aspirated: Approximately 166-170 lb-ft @ 3600-4000 rpm Horsepower Wrx: Approximately 230 hp @ 5600 rpm Torque Wrx: Approximately 235 lb-ft @ 3000 rpm Horsepower Sti: Approximately 300 hp @ 6000 rpm Torque Sti: Approximately 350 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Multi-point fuel injection Recommended Fuel: 87 octane (non-turbo), 91 octane or higher (WRX/STI) 🔧 Transmission Standard Transmission Type Base: 5-speed Manual Transmission Type Wrx: 5-speed Manual Transmission Type Sti: 6-speed Manual Optional Transmission Type Optional: 4-speed Automatic (available on some non-turbo models) Features AWD Coupling: Variable center differential (manual) or electronically controlled multi-plate transfer clutch (automatic) for AWD power distribution. 📐 Dimensions Exterior Wheelbase: 103.1 inches Length Sedan: 173.8 inches Length Wagon: 175.0 inches Width: 68.1 inches Height Sedan: 55.7 inches Height Wagon: 56.1 inches Weights Curb Weight Base: Approx. 2900-3050 lbs Curb Weight Wrx: Approx. 3150-3250 lbs Curb Weight Sti: Approx. 3200-3350 lbs 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (2006 Models) IIHS Front Offset: Good (2006 Models) Active Features ABS: Standard Anti-lock Braking System AWD: Symmetrical All-Wheel Drive for enhanced stability and traction. Passive Features Airbags: Front, side-curtain, and front-seat side airbags (availability varies...