The Mitsubishi Lancer Evolution IX, produced from 2005 to 2007, is a performance-oriented sedan renowned for its rally-bred heritage and sophisticated all-wheel-drive system. Featuring the potent 4G63T MIVEC turbocharged engine and advanced drivetrain technologies like Active Center Differential (ACD) and Active Yaw Control (AYC), this model offers exceptional handling and exhilarating performance. Its engineering quality is evident in its robust construction and driver-focused design, making it a highly sought-after vehicle for both spirited driving and track use. This comprehensive Workshop Service Manual (WSM) provides extensive coverage for the Mitsubishi Lancer Evolution IX (CT9A) across the 2005-2007 model years. It details full service and repair procedures, including engine, transmission, chassis, and electrical systems, with specific guidance on the 4G63T MIVEC engine, manual and SST transmissions, AYC, and ACD. The manual also covers routine maintenance, diagnostics, wiring diagrams, and troubleshooting, empowering owners and technicians to effectively maintain, repair, and understand this performance vehicle. 🏷️ Basic Information Identification Make: Mitsubishi Model: Lancer Evolution IX Model Code: CT9A Model Years Covered: 2005, 2006, 2007 👋 Introduction Market Position Segment: Performance Sedan / Rally Homologation Special Competitive Analysis Key Competitors: Subaru Impreza WRX STI, Mitsubishi Lancer Evo VII/VIII Key Features Performance Focus: All-wheel drive (S-AWC), powerful turbocharged engine, advanced differential systems Target Audience Enthusiast Appeal: Enthusiasts and owners seeking in-depth knowledge for maintenance and performance tuning Value Proposition Cost Savings: Enables DIY repairs and reduces reliance on expensive dealership services 📋 Manual Details Coverage Areas Primary Coverage: Full Service and Repair Secondary Coverage: Routine Maintenance, Diagnostics, Wiring Diagrams Page Count Estimated Pages: 1500+ Manual Type Type: Workshop Service Manual (WSM) Language Language: English Format File Format: PDF (Downloadable) Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe Acrobat Reader or compatible PDF viewer Compatibility Operating Systems: Windows and macOS 📖 Manual Coverage Systems Covered Powertrain: Engine (4G63 MIVEC Turbo), Transmission (Manual & optional SST), Drivetrain (AYC, ACD, Super AYC) Chassis: Suspension (Front & Rear), Steering, Brakes (ABS, Brembo) Electrical: Full Electrical Schematics, ECU, Lighting, Body Electronics, Audio Body: Exterior Body Panels, Interior Trim, Doors, Glass, HVAC Procedures Included Engine Repair: Engine assembly/disassembly, cylinder head, pistons, crankshaft, timing belt, turbocharger overhaul Transmission Service: Gearbox repair, clutch replacement, differential service, transfer case maintenance Diagnostics: Troubleshooting guides, fault code interpretation, sensor testing, diagnostic tool procedures Maintenance: Oil change intervals, fluid specifications, filter replacement, spark plug servicing Electrical Troubleshooting: Wiring diagram interpretation, circuit testing, component diagnosis Suspension Steering: Alignment procedures, shock absorber replacement, power steering system service Technical Depth Depth: Comprehensive: From basic maintenance to complete engine and transmission rebuilds 📊 Manual Specifications File Format Print Quality: Full Printable (high resolution) Print Quality Scalability: Printable at original size for diagrams and schematics Binding Type Digital Binding: N/A (Digital PDF) Paper Type Digital Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: 4G63T MIVEC Engine Type: Inline 4-cylinder, DOHC, 16-valve, Turbocharged and Intercooled Performance Displacement: 2.0 Liters (1997 cc) Horsepower Hp: 286 hp @ 6500 rpm (JDM/Euro), 276 hp @ 6500 rpm (USDM) Torque Lb Ft: 289 lb-ft @ 3500 rpm (JDM/Euro), 286 lb-ft @ 3500 rpm (USDM) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with Sequential Port Injection Fuel Type: Premium Unleaded Gasoline (91 Octane or higher) Cooling System Cooling Type: Water-cooled, pressurized with electric cooling fan Ignition System Ignition Type: Electronic Ignition (Coil-on-plug) 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission (Getrag MD723) Optional Transmission Type: 6-Speed Sequential Sportshift Automatic Transmission (SST) - availability varied by market and trim Features Drivetrain Technology: Super Active Center Differential (S-AYC), Active Center Differential (ACD), Active Yaw Control (AYC) Fluid Specifications Manual Transmission Fluid: API GL-4/GL-5, SAE 75W-90 (Refer to manual for specific Mitsubishi specs, e.g., DiaQueen) Transfer Case Fluid: API GL-4, SAE 75W-90 (Refer to manual for specific Mitsubishi specs, e.g., DiaQueen LSD) 📐 Dimensions Exterior Length: 4490 mm (176.8 in) Width: 1770 mm (69.7 in) Height: 1415 mm (55.7 in) Wheelbase: 2625 mm (103.3 in) Weights Curb Weight Kg: 1450-1500 kg (approx., depending on trim/options) Gross Vehicle Weight Rating: Refer to vehicle VIN plate 🛡️ Safety Features Ratings NHTSA Front Crash Test: 4-star driver, 4-star passenger (2006 Model, refer to specific testing) Active Features Braking System: Front: Ventilated 320mm discs with Brembo 4-piston calipers; Rear: Ventilated 300mm discs with Brembo 2-piston calipers ABS: Anti-lock Braking System (ABS) with Electronic Brakeforce Distribution (EBD) Passive Features Airbags: Front airbags, optional side-impact airbags Seatbelts: 3-point height-adjustable front seatbelts with pretensioners and load limiters 💡 Technology Features Infotainment Audio System: Factory premium audio system with CD player, AM/FM radio, optional subwoofer Driver Assistance Acd System: Active Center Differential (ACD) for torque distribution control based on steering angle, throttle, and wheel speed Ayc System: Active Yaw Control (AYC) for enhanced cornering stability by vectoring torque to rear wheels Connectivity Original Connectivity: Limited by era; primarily analog systems, optional satellite radio integration...