🏷️ Basic Information Identification Make: Subaru Model: Forester Year: 2004 Codes Chassis Code: SG5 / SG9 👋 Introduction Market Position Segment: Compact Crossover SUV Target Audience: Individuals seeking to maintain, repair, or understand their 2004 Subaru Forester. Competitive Analysis Competitors: Honda CR-V, Toyota RAV4, Ford Escape, Mazda Tribute. Key Features Unique Selling Points: Subaru's signature Symmetrical All-Wheel Drive, Boxer engine, and a reputation for durability and capability in various conditions. 📋 Manual Details Coverage Areas Scope: Comprehensive service and repair for the entire vehicle. Page Count Estimated Pages: Over 2000 (typical for a complete service manual of this era) Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Powertrain: Engine (EJ253, EJ255, EJ257), Transmission (Manual & Automatic), Drivetrain (AWD, Differentials, Driveshafts). Chassis: Suspension (Front & Rear), Steering, Brakes (including ABS), Wheels & Tires. Body And Interior: Body Panels, Doors, Windows, Seats, Trim, HVAC (including Automatic Climate Control). Electrical: Wiring Diagrams, Lighting, Ignition System, SRS (Supplemental Restraint System), ECU, Sensors, Audio System. Emissions Control: Information on the emissions control system, including EVAP and EGR components. Procedures Included Maintenance: Routine maintenance, fluid changes, filter replacements, tune-ups. Repair Rebuild: Engine removal/installation, cylinder head overhaul, transmission repair, brake system overhaul, steering component replacement. Diagnostics: Troubleshooting common issues, diagnostic procedures for various systems. Special Tools: Identification and use of specialized tools required for specific repairs. Tightening Torques: Precise torque specifications for critical fasteners throughout the vehicle. Timing Marks: Detailed information on setting and verifying valve timing. Engine Repair Details: In-depth guides on piston ring replacement, bearing replacement, valve seat work, etc. Electrical System Diagnostics: Troubleshooting steps for various electrical circuits, including wiring harness repair and component testing. HVAC Repair: Refrigerant handling (with safety precautions), component replacement (compressor, evaporator, condenser), and system diagnostics. ABS Diagnostics: Troubleshooting ABS warning lights, sensor testing, and hydraulic unit diagnostics. Technical Depth Depth: Detailed instructions for DIY enthusiasts and professional mechanics, including component-level repair and specifications. Diagnostic Codes: Coverage of OBD-II diagnostic trouble codes (DTCs) and their interpretation. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: High-quality, printable pages. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) Compatibility Operating Systems: All versions of Windows & Mac. Requirements Software: Adobe PDF Reader. ⚙️ Engine Specifications Primary Engine Engine Code Na: EJ253 (2.5L Naturally Aspirated) Engine Code Turbo: EJ255 (2.5L Turbocharged) / EJ257 (2.5L Turbocharged STi variant, less common in standard Forester) Performance Na Horsepower Na: Approx. 165 hp @ 5600 rpm Torque Na: Approx. 166 lb-ft @ 3600 rpm Performance Turbo Horsepower Turbo: Approx. 210-225 hp @ 5600 rpm Torque Turbo: Approx. 235-250 lb-ft @ 3000-3500 rpm Fuel System Injection: Multi-Point Fuel Injection (MPI) Engine Layout Configuration: Horizontally-Opposed (Boxer) Timing Drive Type: Timing Belt (EJ253) / Timing Chain (EJ255/EJ257) 🔧 Transmission Standard Type: 5-Speed Manual Transmission Optional Type: 4-Speed Automatic Transmission with Sportshift Features AWD System: Symmetrical All-Wheel Drive (AWD) standard on all models. Fluid Spec Atf Automatic Transmission Fluid: Subaru ATF-HP or equivalent meeting Subaru specification. Fluid Spec Mtf Manual Transmission Fluid: Subaru Extra-S Gear Oil or equivalent meeting Subaru specification. 📐 Dimensions Exterior Length: Approx. 177.0 inches Width: Approx. 69.7 inches Height: Approx. 63.0 inches Wheelbase: Approx. 101.4 inches Weights Curb Weight: Approx. 3,100 - 3,400 lbs (depending on trim and drivetrain) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star Driver and Passenger (2004 Model Year) IIHS Frontal Offset: Good (2004 Model Year) Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Available Traction Control System (TCS) Passive Features Airbags: Frontal Airbags, Side Curtain Airbags (optional on some trims). Srs: Supplemental Restraint System (SRS) detailed in manual. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player, with optional premium audio and CD changer on higher trims. Driver Assistance Cruise Control: Standard cruise control. Connectivity Aux Input: Not typically standard; aftermarket solutions often available. 🔧 Maintenance Service Intervals Oil Engine Oil Change: Every 3,750 miles or 3.75 months (severe conditions) / 7,500 miles or 7.5 months (normal conditions). Service Intervals Belt Timing Belt Replacement: Every 105,000 miles or 7 years (for EJ253 models). Fluid Specifications Engine Oil: SAE 5W-30 (API SG or higher). Coolant: Subaru Super Coolant (Blue) or equivalent P-OAT type. Brake Fluid: DOT 3 or DOT 4. Known Issues Head Gaskets: While less prone than older Subaru models, head gasket leaks can still occur, especially on turbocharged engines. Catalytic Converter: Can fail due to age or internal engine issues, affecting emissions and performance. O2 Sensors: Can degrade over time, leading to check engine lights and poor fuel economy. 📚 Vehicle History Brand Heritage Manufacturer Focus: Specialty vehicle manufacturer with a focus on AWD, rally-derived technology, and durable Boxer engines. Model Evolution Generation: Second Generation (SG) Forester (2003-2008). Key Updates For 2004: Minor styling updates, potential for turbocharged models (XT)....