🏷️ Basic Information Identification Make: Mitsubishi Model: Sigma Diamante Generation: Second Generation (Japan: Mitsubishi Diamante, North America: Mitsubishi Sigma) Codes Platform Code: The Sigma/Diamante was based on Mitsubishi's front-wheel-drive Type G platform, shared with models like the Galant and Eclipse. 👋 Introduction Market Position Market Position: The Mitsubishi Sigma Diamante was positioned as a premium mid-size sedan, offering a blend of comfort, performance, and advanced features for its era. It competed with vehicles like the Toyota Camry, Honda Accord, and Ford Taurus. Competitive Analysis Competitive Analysis: Distinguished itself with optional V6 engines, available all-wheel steering (on some models), and a focus on a quiet, refined ride. The V6 engines provided strong acceleration, and the interior often featured higher trim levels with more amenities than base models of competitors. Key Features Key Features: Available V6 engines, sophisticated suspension (including optional advanced chassis control systems), comfortable and spacious interior, and a robust list of available options and features for its time. Manual Purpose Manual Purpose: Provides detailed instructions and specifications for the maintenance, repair, and troubleshooting of the Mitsubishi Sigma Diamante from 1991-1995. Aimed at both DIY enthusiasts and professional mechanics. 📋 Manual Details Coverage Areas Covered Models: Mitsubishi Sigma Diamante Covered Years: 1991, 1992, 1993, 1994, 1995 Page Count Estimated Page Count: Extensive (typical for a full workshop manual covering multiple systems, estimated 1000+ pages if printed) Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Lubrication, Fuel Supply, Cooling, Intake, Exhaust, Engine Electrical, Emission Control, Multipoint Fuel Injection (MPI), Throttle Body, Fuel Injector, Intake Air, Engine Control Module, Air Cleaner, Intake Manifold, Exhaust Manifold, Engine Mounting Transmission Systems: Clutch, Manual Transmission (F5M33), Automatic Transmission (F4A33) Drivetrain Systems: Front Axle, Rear Axle, Wheel and Tyre, Power Plant Mount Suspension Steering Brakes: 4-Wheel Steering System, AEC Suspension System, Front Suspension, Rear Suspension, Power Steering, Power Brake System, Service Brakes, Anti-Lock Brake System Electrical Body Comfort: Chassis Electrical, Charging System, Ignition System, Starting System, Lighting System, Body System, Exterior System, Interior System, Supplemental Restraint System (SRS), Heater and Ventilation, Air Conditioning, Cruise Control System, Exhaust Gas Recirculation (EGR), Traction Control System, Audio System Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, inspections Repair Procedures: Detailed step-by-step repair instructions for all major vehicle systems Troubleshooting: Diagnostic charts and procedures for identifying and resolving common and complex issues Special Tools: Identification and usage of special service tools required for specific repairs Technical Depth Technical Depth: Comprehensive; covers everything from basic maintenance and fluid checks to complete engine and transmission rebuilds, electrical system diagnostics, and bodywork repairs. Includes detailed diagrams and specifications. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High resolution, suitable for printing individual pages or the entire manual. Features detailed illustrations and diagrams. Binding Type Binding Type: Digital (PDF). User can print and bind as desired. Paper Type Paper Type: N/A (Digital format). If printed, standard A4 or Letter paper recommended. Software Requirements Software Requirements: Adobe Acrobat Reader (free download available), WinZip or WinRAR (for extraction) File Size File Size: 53 MB ⚙️ Engine Specifications Primary Engine Engine Code 1: 6G72 Engine Configuration 1: 3.0L (2972cc) V6, SOHC Engine Configuration 2: 3.0L (2972cc) V6, DOHC Performance Bore X Stroke 1: 86.1 mm x 86.0 mm (typical for 6G72 SOHC) Compression Ratio 1: 8.5:1 (typical for 6G72 SOHC) Horsepower 1: Approximately 160-170 hp @ 5500 rpm (SOHC variant, US spec) Torque 1: Approximately 185-190 lb-ft @ 3000-3500 rpm (SOHC variant, US spec) Horsepower 2: Approximately 200-210 hp @ 6000 rpm (DOHC variant, some markets/trims) Torque 2: Approximately 200-210 lb-ft @ 4000 rpm (DOHC variant, some markets/trims) Fuel System Fuel System: Multipoint Fuel Injection (MPI) Cooling System Cooling Type: Water-cooled, pressurized system Engine Management ECU Type: Engine Control Module (ECM) managing fuel injection and ignition timing. 🔧 Transmission Standard Standard Transmission: 5-Speed Manual F5M33 Optional Optional Transmission: 4-Speed Automatic F4A33 Features Transmission Features: F5M33: Front-mounted, transaxle design. F4A33: Electronically controlled, offering sport or economy modes on some variants. Fluid Requirements Manual Transmission Fluid: API GL-4 SAE 75W-90 gear oil (typical, consult manual for exact specification). Automatic Transmission Fluid: Mitsubishi Diaqueen ATF-SP II M or equivalent (typical, consult manual for exact specification). 📐 Dimensions Exterior Length: Approximately 192.1 inches (4880 mm) Width: Approximately 70.5 inches (1790 mm) Height: Approximately 55.1 inches (1400 mm) Weights Curb Weight: Approximately 3400-3600 lbs (1540-1630 kg), depending on engine and transmission. 🛡️ Safety Features Ratings Safety Ratings: Specific NHTSA/IIHS ratings for this period are less readily available than modern vehicles, but generally considered safe for its class. Focus on structural integrity for its era. Passive Features Passive Safety Features: Driver and passenger airbags (standard on later models), seat belts, reinforced passenger compartment. Active Features Active Safety Features: Optional Anti-Lock Brake System (ABS), optional...