🏷️ Basic Information Identification Make: Mitsubishi Model: 3000GT Year: 1991 Codes Chassis Code: Z16A (for VR-4) Engine Code: 6G72 👋 Introduction Market Position Market Segment: Sports Car / Grand Tourer Competitive Analysis Key Competitors 1991: Nissan 300ZX (Z32), Toyota Supra (Mk3/Mk4 prelude), Mazda RX-7 (FC3S/FD3S), Chevrolet Corvette (C4), Dodge Stealth (rebadged Mitsubishi GTO). Key Features Unique Selling Points: Advanced AWD system, four-wheel steering (4WS), electronically controlled suspension (ECS), twin-turbocharged engine option, aggressive styling. Model Introduction Initial Release Year: 1990 (as GTO in Japan), 1991 (as 3000GT in North America) 📋 Manual Details Coverage Areas Systems Covered: Engine mechanical, engine fuel & emission control, engine electrical, exhaust system, cooling system, lubrication system, transmission, driveline, steering, suspension, brakes, body electrical, chassis electrical, interior, exterior body, HVAC. Page Count Estimated Page Count: 1500+ Manual Type Manual Type: Factory Service Manual (FSM) Language Language: English Format Format: Electronic Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed procedures for disassembly, inspection, assembly, and adjustment of all engine components, including cylinder head, pistons, crankshaft, connecting rods, camshafts, valves, and timing system. Engine Fuel Emission Control: In-depth coverage of the multi-point fuel injection (MPI) system, ignition system, idle air control (IAC), oxygen sensors, catalytic converter, and diagnostic trouble codes (DTCs). Engine Electrical: Wiring diagrams, component testing, starter, alternator, battery, ECU (Engine Control Unit) diagnostics, and sensor data. Transmission: Service and repair procedures for both the 5-speed manual transmission and the 4-speed automatic transmission, including fluid changes, component overhaul, and shift control. Driveline: Detailed information on the All-Wheel Drive (AWD) system, including the viscous coupling center differential, rear differential, axles, and CV joints. Steering Suspension: Front and rear suspension component diagnosis, alignment procedures, steering gear service, and Active Aerodynamics system (if applicable to the specific trim). Brakes: ABS (Anti-lock Braking System) diagnosis and repair, brake caliper, rotor, and pad replacement, hydraulic system bleeding, and parking brake adjustments. Body Electrical: Lighting systems, power windows, power locks, mirrors, remote keyless entry (if equipped), and interior/exterior lighting schematics. HVAC: Air conditioning system service, heater core replacement, climate control system diagnosis, and refrigerant handling. Procedures Included Maintenance: Scheduled maintenance intervals, fluid checks and changes (oil, coolant, brake fluid, transmission fluid, differential fluid), filter replacements, belt inspections and replacement, spark plug replacement, and general tune-up procedures. Troubleshooting: Systematic diagnostic procedures for common and uncommon problems, including symptom-based troubleshooting guides, wiring diagrams for diagnosis, and specific tests for various components. Repair: Step-by-step instructions for component removal, repair, and reinstallation, covering everything from minor adjustments to major overhauls. Technical Specifications: Torque specifications for all fasteners, diagnostic values (e.g., resistance, voltage), engine timing specifications, alignment data, and electrical component specifications. Technical Depth Depth Of Coverage: Comprehensive, covering from basic maintenance to in-depth engine, transmission, and chassis component overhaul and repair. Includes diagnostic procedures, wiring diagrams, and specifications for professional technicians. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution scans of original factory manual pages, ensuring clarity of text and diagrams. Binding Type Binding Type: Not Applicable (Digital Download) Paper Type Paper Type: Not Applicable (Digital Download) Searchability Text Searchability: Searchable text enabled for quick information retrieval. ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V6 Engine Code: 6G72 Displacement: 3.0 Liters (2972 cc) Configuration: 60-degree V6, SOHC 24-valve (non-turbo), DOHC 24-valve (twin-turbo) Performance Horsepower Na: 222 hp @ 6000 rpm Torque Na: 200 lb-ft @ 4500 rpm Horsepower Twin Turbo: 300 hp @ 6000 rpm Torque Twin Turbo: 300 lb-ft @ 4500 rpm Fuel System Fuel Delivery: Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (91 Octane Recommended) Cooling System Cooling Type: Liquid Cooled Lubrication System Oil Capacity: Approximately 4.7 US quarts (4.5 liters) with filter change. Timing System Timing Belt Replacement Interval: Recommended every 60,000 miles or 5 years. Critical for DOHC engines. 🔧 Transmission Standard Transmission Type Na: 5-speed Manual Optional Transmission Type Tt: 4-speed Automatic with Sportronic (paddle shifters on later models, not 1991) Features AWD System: Full-time All-Wheel Drive (on VR-4 and base models depending on market). Four Wheel Steering: ECS (Electronic Controlled Suspension) with 4WS (Four-Wheel Steering) available on some trims. Fluid Specifications Manual Transmission Fluid: API GL-4, SAE 75W-90 or SAE 75W-85 (refer to manual for exact spec). Automatic Transmission Fluid: Dexron III or equivalent. Transfer Case Fluid: API GL-5, SAE 75W-90 (for AWD models). Rear Differential Fluid: API GL-5, SAE 75W-90 (for AWD models). 📐 Dimensions Exterior Length: Approx. 178.2 inches (4526 mm) Width: Approx. 70.9 inches (1801 mm) Height: Approx. 49.2 inches (1250 mm) Wheelbase: Approx. 97.2 inches (2469 mm) Weights Curb Weight Na: Approx. 3461 lbs (1570 kg) Curb Weight Tt: Approx. 3700 lbs (1678 kg) Gross Vehicle Weight Rating: Varies by model and trim. 🛡️ Safety Features Ratings NHTSA Crash Test Ratings: Specific ratings for 1991 models are not readily available for all categories, but the era's vehicles...