🏷️ Basic Information Identification Make: Mitsubishi Model: Diamante Generation: First Generation (JDM: Sigma, North America: Diamante) Model Years Covered: 1991, 1992, 1993, 1994, 1995, 1996 Chassis Codes Jdm: JS1A, JS2A (Sigma/Diamante Sedan) Model Designation North America: Diamante Model Designation Japan: Sigma (also associated with Debonair platform). Codes Chassis Codes: JS2 (sedan), JS3 (wagon - not covered by this manual, as it is primarily focused on sedan models based on typical workshop manual coverage for this era). 👋 Introduction Market Position Segment: Mid-size luxury sedan, competing with vehicles like the Toyota Camry, Honda Accord, Ford Taurus, and Chevrolet Lumina in its segment. Positioned as a more upscale offering from Mitsubishi. Target Audience: Aimed at buyers seeking a comfortable, stylish, and well-equipped sedan with a focus on smooth V6 performance and a refined driving experience. Competitive Analysis Strengths: Known for its distinctive styling (especially the early models), smooth V6 engines, and comfortable ride. Often offered a good value proposition compared to some established luxury marques. Key Features Features: Standard V6 engines, available all-wheel drive (AWD), premium interior materials (on higher trims), advanced (for its time) suspension systems, distinctive design cues. 📋 Manual Details Coverage Areas Manual Scope: Comprehensive workshop repair and service for the specified Mitsubishi Diamante model years. Specific Areas Covered: Engine Mechanical, Engine Electrical, Fuel System, Ignition System, Cooling System, Lubrication System, Intake & Exhaust, Clutch (if applicable), Automatic Transmission, Drivetrain, Suspension, Steering, Brakes, ABS System, Body Panels, Doors, Windows, Interior, HVAC, Electrical Distribution, Fuses & Relays, Wiring Diagrams. Page Count Estimated Page Count: 1000+ (typical for comprehensive workshop manuals of this era, though exact count not provided). Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Delivery Method: Electronic delivery via email. 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnostics, tune-ups, fuel system, ignition system, lubrication system, cooling system, emission control systems. Transmission: Repair and overhaul of automatic transmissions (likely INVECS-II or similar for V6 models), clutch system for manual transmissions (if applicable to specific markets/trims), drivetrain components (drive shafts, CV joints, differential). Brakes: Hydraulic system, ABS diagnostics and repair (if equipped), disc/drum brake component service, parking brake. Suspension Steering: Front and rear suspension components (struts, shocks, control arms, bushings), power steering system, steering gear/rack and pinion. Electrical: Complete wiring diagrams, charging system (alternator, battery), starting system, lighting, instrumentation, power accessories, fuse/relay identification and testing, basic diagnostic procedures. Body: Exterior body panels, doors, windows, locks, interior trim, HVAC system, body sealing, structural components. Fuel System: Fuel pump, fuel injectors, fuel pressure regulator, fuel filter replacement procedures, fuel tank service. Exhaust: Exhaust manifold, catalytic converter replacement, muffler and pipe service, emissions control components. Cooling System: Radiator, water pump, thermostat, hoses, fan clutch/electric fans, heater core diagnostics and replacement. Procedures Included Maintenance: Routine scheduled maintenance, fluid changes, filter replacements, lubrication, belt checks and replacement. Diagnostics: Troubleshooting guides, symptom-based diagnostics, electrical system testing, engine performance analysis. Repair: Component removal, installation, adjustment, and overhaul for all major vehicle systems. Special Tools: Identification and usage of specific Mitsubishi special tools required for certain procedures. Troubleshooting Charts: Comprehensive troubleshooting flowcharts and symptom guides for diagnosing common and complex issues. Torque Specifications: Detailed torque specifications for all critical fasteners, essential for proper assembly and safety. Technical Depth Depth: Advanced diagnostics and complete engine/transmission disassembly and reassembly, suitable for professional technicians and experienced DIYers. Diagrams Illustrations: Detailed exploded views, wiring diagrams, and step-by-step illustrations for major repair procedures. 📊 Manual Specifications File Format Format: PDF Print Quality Quality: Printable (high-resolution for clear text and diagrams). Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code Variants: 6G72 (3.0L SOHC V6), 6G73 (2.5L DOHC V6 - less common in North America, more prevalent in JDM Sigma variants). Performance 3.0L V6 Horsepower Torque: Approximately 170-180 hp and 195-200 lb-ft of torque, depending on year and specific tune. (Exact figures vary by market and year.) 2.5L V6 Horsepower Torque: Approximately 160-170 hp and 170-180 lb-ft of torque. (Less common for North American market). Fuel System Induction Type: Multi-port fuel injection (MPI) for all V6 engines. Engine Layout Layout: V6, 60-degree bank angle Bore X Stroke 3.0L: 81.0 mm x 95.0 mm (approximate). Cooling System Coolant Type Capacity: Typically uses a 50/50 mix of ethylene glycol coolant and distilled water. Capacity around 8-9 liters. Consult manual for precise specifications. Ignition System Ignition Type: Distributorless ignition system (DIS) with coil packs common on later models. Older models might have a distributor. 🔧 Transmission Standard Transmission Type: 4-speed automatic (e.g., INVECS-II). Optional Transmission Type Optional: 5-speed manual (less common, particularly in North American markets for the Diamante, more prevalent in JDM Sigma variants). Features Transmission Features: Electronically controlled, adaptive shift logic (INVECS-II) to optimize shift points based on driving style and conditions. Available All-Wheel Drive (AWD) system with viscous...