🏷️ Basic Information Identification Make: Mitsubishi Model: Sigma Years Covered: 1991, 1992, 1993, 1994, 1995 👋 Introduction Market Position Segment: Mid-size Sedan Competitive Analysis Competitors: Toyota Camry, Honda Accord, Ford Taurus, Chevrolet Lumina, Nissan Maxima Key Features Styling: Sleek, aerodynamic design for its era, often with a sporty appeal Powertrain Options: Known for offering potent V6 engines, providing strong performance for the segment Interior Comfort: Spacious cabin, comfortable seating, often well-equipped with features for its class 📋 Manual Details Coverage Areas Regions: Global (specific to North American market for this generation, but adaptable to other markets with minor variations) Page Count Estimated Pages: 1000-2000 (typical for comprehensive service manuals of this era) Manual Type Type: Service and Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine disassembly, assembly, overhaul, timing, lubrication, cooling system Engine Management: Fuel injection system (MPI), ignition system, emissions control (OBD-I compliance, catalytic converter, EGR), engine control unit (ECU) diagnostics Transmission Manual: Manual transmission (W5MG1, KM222) disassembly, assembly, repair, clutch operation Transmission Automatic: Automatic transmission (V4A51) disassembly, assembly, repair, torque converter operation, hydraulic control Drivetrain: Front-wheel drive (FWD) systems, drive shafts, CV joints, differential Suspension: Front independent suspension (MacPherson struts), rear multi-link suspension, shock absorbers, springs, control arms, bushings Steering: Power steering system, steering rack, steering column, alignment specifications Brakes: Front ventilated discs, rear discs, anti-lock braking system (ABS) operation and diagnosis, brake system bleeding, master cylinder, calipers Electrical System: Battery, charging system (alternator), starting system (starter motor), lighting system, fuses, relays, wiring diagrams Body And Chassis: Body panel removal and installation, door mechanisms, window regulators, glass replacement, interior trim, chassis component torque specifications HVAC: Air conditioning system, heater core, blower motor, climate control module, refrigerant charging procedures Safety Systems: Airbag system (if equipped), seat belt mechanisms Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug replacement, fluid checks and changes Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs) for engine and ABS, common fault finding Repair: Step-by-step repair procedures for all major mechanical and electrical components Disassembly Assembly: Detailed instructions for dismantling and reassembling various vehicle sub-assemblies Wiring Diagrams: Comprehensive electrical wiring diagrams for all vehicle systems Specifications: Torque values, clearances, fluid capacities, and other critical technical data Technical Depth Depth: Comprehensive from basic maintenance to major component overhaul and diagnostics 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Printable: Printable sections and pages Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: 6G72 (Common V6) Engine Type: 3.0L SOHC V6 (12-valve), 3.0L DOHC V6 (24-valve) Performance Horsepower Sohc: Approx. 143-155 hp (varies by year and market) Horsepower DOHc: Approx. 170-180 hp (varies by year and market) Torque: Approx. 170-185 lb-ft (varies by engine and year) Fuel System Fuel Delivery: Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline Other Displacement: 2972 cc Engine Layout: V-engine Ignition System: Distributorless Ignition System (DIS) or Distributor type 🔧 Transmission Standard Transmission Type Standard: 5-Speed Manual (e.g., W5MG1) Optional Transmission Type Optional: 4-Speed Automatic (e.g., V4A51) Features Drive Type: Front-Wheel Drive (FWD) 📐 Dimensions Exterior Length: Approx. 189.0 - 191.0 inches (varies by body style/trim) Width: Approx. 70.5 - 71.0 inches Height: Approx. 55.0 - 56.0 inches Wheelbase: Approx. 107.1 inches Weights Curb Weight: Approx. 3200 - 3500 lbs (varies by trim and transmission) 🛡️ Safety Features Ratings NHTSA Frontal Impact: Not extensively tested or rated by modern NHTSA standards for this era, but generally considered safe for its time. Active Features ABS: Optional Anti-lock Braking System (ABS) on many models Passive Features Airbags: Driver-side airbag standard on later models; passenger airbag optional or not available on early models Seatbelts: Three-point seatbelts in front and rear 💡 Technology Features Infotainment Audio System: AM/FM stereo with cassette player, optional CD player, speaker configurations vary by trim Driver Assistance Cruise Control: Standard on most trims Connectivity Connectivity Features: Limited by era; primarily focused on car stereo and basic electrical functions Other Features Climate Control: Manual or automatic climate control systems available 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles or 6 months (depending on oil type and driving conditions) Engine Coolant Change: Every 30,000 miles or 2 years Transmission Fluid Change Auto: Every 30,000-60,000 miles (depending on driving conditions) Transmission Fluid Change Manual: Every 50,000-100,000 miles Spark Plug Replacement: Every 30,000-60,000 miles (depending on plug type - platinum plugs may last longer) Fluid Specifications Engine Oil Type: API SG or higher, SAE 10W-30 or 10W-40 (check owner's manual for specific viscosity based on temperature) Engine Oil Capacity: Approx. 4.5 - 5.0 US quarts (with filter) Automatic Transmission Fluid Type: Dexron II or equivalent Manual Transmission Fluid Type: API GL-4, SAE 75W-90 or 80W-90 Power Steering Fluid: ATF Dexron II or equivalent Coolant Type: Ethylene...