🏷️ Basic Information Identification Make: Mitsubishi Model: Sigma Year: 1996-1997 Generation Generation Designation: Second Generation (ES/EC) Codes Chassis Code: ES/EC 👋 Introduction Market Position Segment: Large Sedan (often marketed as a premium or luxury sedan) Competitive Analysis Competitors 1996 1997: Toyota Avalon, Buick LeSabre, Ford Taurus, Chevrolet Lumina, Nissan Maxima Key Features Powertrain Options: V6 engines (e.g., 3.0L 6G72 SOHC/DOHC), likely front-wheel drive, optional all-wheel drive (AWD) on some trims/markets. Design Philosophy: Emphasis on comfort, quiet ride, and smooth performance, often featuring advanced technology for its era. 📋 Manual Details Coverage Areas Primary Markets: North America, Australia, Japan (as Mitsubishi Diamante) Body Styles: All Styles Covered (Sedan, potentially Wagon if applicable to these years in specific markets) Page Count Estimated Pages: Hundreds of pages Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine Service/Repair, Transmission Service/Repair, Fuel Injection, Fuel System, Engine Control System, Cooling System, Emission System, Differential/Drive, Axle Chassis: Brake System, Suspension, Steering, Chassis/Body Electrical And Comfort: Wiring Diagram, Electrical System, Heater/Air Conditional, Restraint System, Interior Procedures Included Maintenance And Routine: General Maintenance, Periodic Lubrication Diagnostics And Repair: Troubleshooting, Step-by-step repair procedures, Electrical system diagnosis and repair Technical Depth Depth: Complete disassembly and reassembly guidance, detailed substeps, notes, cautions, and warnings Illustrations: Hundreds of photos and illustrations, enlarged inset views for detailed part examination 📊 Manual Specifications File Format Format: PDF Compatibility: Windows PC, Mac Print Quality Printability: Printable without restriction (entire manual or selected pages) Binding Type Binding: Digital Download (printable for physical binding) Paper Type Paper Recommendation: Standard printing paper (user dependent) ⚙️ Engine Specifications Primary Engine Engine Code And Type: 6G72 (3.0L V6, SOHC or DOHC) Performance Horsepower Range: Approximately 150-200 hp (depending on SOHC/DOHC and market) Torque Range: Approximately 180-200 lb-ft (depending on SOHC/DOHC and market) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Transmission Type Standard: 4-speed Automatic Transmission Optional Transmission Type Optional: Potentially a 5-speed manual in some markets or specific trims (less common for Sigma). Features AWD Option: Availability of an All-Wheel Drive (AWD) system (often designated as 'Viscous Coupling AWD' or similar). 📐 Dimensions Exterior Wheelbase: Approximately 107.1 inches (2720 mm) Length: Approximately 192.7 inches (4895 mm) Weights Curb Weight Range: Approximately 3400-3700 lbs (1542-1678 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: Likely 4-star rating (based on typical performance of vehicles from this era, specific data may vary) Active Features Braking System: Front Ventilated Discs, Rear Solid Discs (ABS typically standard or optional) Traction Control: Optional Traction Control System (TCS) available on some models. Passive Features Airbags: Driver and passenger airbags standard. Seatbelts: Front pretensioner seatbelts. 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with cassette player and CD player (optional on some trims). Climate Control: Automatic climate control with digital display available on higher trims. Driver Assistance Cruise Control: Standard cruise control. Keyless Entry: Optional keyless entry system. Connectivity Auxiliary Input: Not typically equipped with factory auxiliary inputs; aftermarket solutions available. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 - 5,000 miles (6,000 - 8,000 km) or 6 months, whichever comes first. Timing Belt Replacement: Every 60,000 - 90,000 miles (96,000 - 145,000 km) or 5-7 years, critically important due to interference engine design. Fluid Specifications Engine Oil Type: API SG/SH or higher, SAE 5W-30 or 10W-30 (refer to manual for exact viscosity based on temperature). Coolant Type: Mitsubishi Super Long Life Coolant (MS-97641) or equivalent ethylene glycol-based coolant with corrosion inhibitors. Transmission Fluid Type: Dexron III/Mercon Automatic Transmission Fluid (ATF) or equivalent. Known Issues Engine Mounts: Premature wear and failure of engine mounts, leading to vibrations. Suspension Components: Wear in ball joints, tie rod ends, and control arm bushings, particularly with higher mileage. Oxygen Sensors: Failure of oxygen sensors, leading to poor fuel economy and check engine light illumination. Exhaust System: Corrosion and leaks in the exhaust system, particularly in rust-prone climates. 📚 Vehicle History Brand Heritage Parent Company: Mitsubishi Motors Corporation Model Evolution Previous Generation: First Generation Sigma (1990-1996), often based on the Mitsubishi Debonair or Diamante. Platform Sharing: Shared platform with Mitsubishi Diamante (Japan) and potentially other Mitsubishi models depending on market. Production Manufacturing Location: Primarily Japan (for Mitsubishi Diamante, which Sigma was based on) Production Years Global: 1990-2005 (as Diamante/Sigma lineage) 🏆 Awards & Recognition Recognitions Safety Awards Typical: May have received good crash test ratings for its era, but specific industry awards for this model are not widely documented. Ratings Consumer Reports Typical: Generally considered a reliable vehicle for its time, though some noted areas for improvement in certain components. Specific year ratings would require access to historical consumer reports.