🏷️ Basic Information Identification Make: Mitsubishi Model: Sigma / Diamante Model Variant: Sedan Generation: Second Generation (Mitsubishi Sigma/Diamante Series JP:F11A/F12A, F13A/F14A, F15A/F16A; Mitsubishi Diamante Series US:J21A, J23A, J25A, J27A) Codes Chassis Codes Jp: F11A, F12A, F13A, F14A, F15A, F16A Chassis Codes Us: J21A, J23A, J25A, J27A Engine Code: 6G72 Transmission Codes: F5M33 (Manual), F4A33 (Automatic) 👋 Introduction Market Position Segment: Mid-size to Full-size Luxury Sedan Target Audience: Consumers seeking a comfortable, reliable, and well-equipped sedan, often with a focus on advanced features for its time. Competitive Analysis Key Competitors: Toyota Avalon, Lexus ES, Nissan Maxima, Honda Accord (higher trims), Ford Taurus (higher trims) Key Features Distinguishing Features: Available All-Wheel Drive (AWD) on some models, luxurious interior appointments, advanced (for its era) optional features like active suspension and climate control. Manual Value Proposition: Provides factory-level diagnostic and repair information, enabling cost-effective maintenance and troubleshooting for owners and independent workshops. 📋 Manual Details Coverage Areas Applicable Years: 1991, 1992, 1993, 1994, 1995 Covered Regions: Global (specifications may vary slightly by market, but core procedures are universal) Page Count Estimated Pages: Likely over 1000 pages (typical for comprehensive workshop manuals of this era) Manual Type Type: Workshop Repair Manual Language Language: English Format Format: PDF (Digital Download) 📖 Manual Coverage Systems Covered Engine: 6G72 V6 (3.0L) - Overhaul, diagnostics, timing, fuel injection, ignition, cooling, lubrication, intake, exhaust, emission control Transmission: F5M33 5-Speed Manual Transmission (Clutch, gearbox overhaul, shift mechanisms, linkages, drive shafts), F4A33 4-Speed Automatic Transmission (Hydraulic control, valve body, torque converter, overhaul, diagnostics, fluid cooler) Drivetrain: Front Axle (CV joints, differential), Rear Axle (differential, drive components) Suspension: Front Suspension (MacPherson struts, control arms, ball joints, bushings, sway bar), Rear Suspension (Multi-link independent suspension, shock absorbers, springs, control arms, bushings) Brakes: Power Brake System (Master cylinder, booster, proportioning valve), Service Brakes (Front/Rear Disc Brakes, calipers, rotors, pads, hydraulic lines, parking brake) Steering: Power Steering System (Pump, rack and pinion, steering column, linkages) Body And Chassis: Body (frame, panels, doors, hinges, latches, glass), Exterior (trim, lighting, bumpers), Interior (seats, upholstery, trim panels, headliner), Body Mounts Electrical: Chassis Electrical (Wiring diagrams, lighting, instruments, power windows, locks, mirrors, horn, wipers), Engine Electrical (Starter, alternator, ignition system, sensors, ECU connectors), Supplemental Restraint System (SRS - Airbag system components, sensors, control module, pre-tensioners) HVAC: Heater, Air Conditioner, and Ventilation (Compressor, condenser, evaporator, blower motor, ducting, controls, refrigerant system) Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication, tune-ups Diagnostics: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (where applicable), sensor testing Repair And Overhaul: Complete engine rebuild, transmission overhaul, brake system repair, suspension component replacement, steering system repair, electrical component repair, body panel repair Special Tools: Identification and usage of specialized tools required for specific repairs Technical Depth Depth: Comprehensive (from basic maintenance to complete component overhauls and diagnostics) Detail Level: Detailed step-by-step instructions with exploded views, diagrams, and illustrations 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable if digitally created, image-based PDFs may have limited searchability Print Quality Printability: Fully printable (selected pages or entire manual) Binding Type Binding: Not applicable (Digital Download) Paper Type Paper Quality: Not applicable (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: 6G72 Engine Type: SOHC V6 (Some models may have had DOHC variants, but the manual specifies the common 6G72 which is typically SOHC for this platform's core years) Displacement: 3.0 Liters (2972 cc) Performance Horsepower Est: 140-150 HP (Varies slightly by market and specific engine tune) Torque Est: 160-170 lb-ft (Varies slightly by market and specific engine tune) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline (87 Octane minimum) Ignition System Ignition Type: Distributorless Ignition System (DIS) or Distributor-based system depending on specific market/year 🔧 Transmission Standard Transmission Type: 5-Speed Manual (F5M33) Optional Transmission Type: 4-Speed Automatic (F4A33) Features AWD Availability: Available on select models with either transmission Fluid Specs Manual Transmission Fluid: API GL-4, SAE 75W-90 gear oil (Consult manual for exact specification) Automatic Transmission Fluid: DIA QUEEN ATF SP-II (or equivalent like Dexron II/III compatible fluid - consult manual for exact specification) 📐 Dimensions Exterior Wheelbase Est: Approx. 107.1 inches (2720 mm) Length Est: Approx. 191.7 inches (4870 mm) Width Est: Approx. 70.3 inches (1785 mm) Height Est: Approx. 55.1 inches (1400 mm) Weights Curb Weight Est: Approx. 3300-3600 lbs (1497-1633 kg), varies with drivetrain and options Wheels And Tires Wheel Bolt Pattern: 5x114.3 mm (5x4.5 inches) Standard Tire Size: P205/60R15, P215/60R15, or P215/55R16 (depending on trim and year) 🛡️ Safety Features Ratings Crash Test Performance: No specific standardized ratings like NHTSA/IIHS from the period are easily available for all markets, but generally considered a safe vehicle for its era. Consult specific regional automotive safety archives if available. Active Features ABS: Anti-lock Braking System (ABS) - Standard on most models or widely available Traction Control: Traction Control System (TCS) -...