🏷️ Basic Information Identification Make: Mitsubishi Model: Sigma Model Code: F1_Series (for applicable years and global markets) Platform: Mitsubishi Galant (shared platform for this generation) Generation Generation Designation: 8th Generation Mitsubishi Galant platform (Sigma being the badge-engineered version in some markets) Codes Engine Codes Likely Covered: 6A1x series V6 (e.g., 6A12, 6A13), 4G6x series inline-4 (e.g., 4G63, 4G64) - dependent on market and specific model variants 👋 Introduction Market Position Segment: Mid-size sedan (often positioned as a more premium or distinct offering compared to the base Galant in certain markets) Competitive Analysis Competitors: Ford Taurus, Chevrolet Lumina, Toyota Camry, Honda Accord, Nissan Maxima, Mazda 626, Hyundai Sonata (depending on market) Key Features Distinctive Attributes: Often featured Mitsubishi's advanced V6 engines (like the 6A12/6A13), stylish design, comfortable interiors, and sophisticated features for its era. The Sigma badge was used to differentiate it in markets where the Galant was also sold under its own name. 📋 Manual Details Coverage Areas Applicable Years: 1991, 1992, 1993, 1994, 1995, 1996 Page Count Total Pages: 1441 Manual Type Type: Workshop Service Repair Manual Language Primary Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine (mechanical, electrical, lubrication, cooling, fuel, emissions), Transmission (manual and automatic, internal components, hydraulics, electronic controls) Chassis: Suspension (front and rear, components, adjustments), Steering (system operation, components, power steering), Brakes (system hydraulics, components, ABS if equipped) Electrical: Wiring diagrams, lighting systems, starting and charging systems, ignition system, instrument cluster, accessories, power windows/locks, climate control electronics Body: Body panels, doors, windows, interior trim, seats, bumpers, exterior trim, paint and finish repair guidance Engine Mechanical: Cylinder head, block, pistons, crankshaft, camshafts, valves, timing system (belts/chains), oil pump, oil pan. Engine Fuel System: Fuel pump, fuel filter, fuel injectors, fuel rail, pressure regulator, evaporative emission control (EVAP) system. Engine Cooling System: Radiator, water pump, thermostat, coolant hoses, expansion tank, cooling fan(s). Engine Lubrication System: Oil filter, oil pump, oil pan, oil passages, oil pressure switch. Ignition System: Spark plugs, ignition coils, distributor (if applicable), ignition control module, sensors (crankshaft, camshaft). Exhaust System: Exhaust manifolds, catalytic converter, muffler, exhaust pipes, oxygen sensors. Transmission Manual: Clutch assembly, gearbox internal components, shift linkage, transmission fluid. Transmission Automatic: Torque converter, planetary gear sets, valve body, transmission control module (TCM), hydraulic circuits, transmission fluid. Suspension Front: MacPherson struts, control arms, ball joints, sway bar, springs, shock absorbers. Suspension Rear: Multi-link or independent rear suspension components, subframe, springs, shock absorbers. Steering System: Steering rack, power steering pump, steering column, tie rods, power steering fluid. Brake System: Brake pedal, master cylinder, brake booster, brake lines, calipers, brake pads, brake rotors, parking brake. ABS System: ABS control module, wheel speed sensors, hydraulic modulator (if equipped). Lighting Exterior: Headlights, taillights, turn signals, brake lights, fog lights, reverse lights. Lighting Interior: Dome light, map lights, vanity mirror lights, trunk light. Climate Control: HVAC unit, blower motor, evaporator, condenser, refrigerant lines, heater core, controls. Procedures Included Maintenance: Routine inspections, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, spark plug service, belt replacement, tire rotation Diagnostics: Troubleshooting guides for common symptoms, diagnostic trouble codes (DTCs) for applicable systems, component testing procedures Repair: Detailed step-by-step instructions for component removal, disassembly, repair, reassembly, and installation for all major systems Overhaul: Engine overhaul procedures, transmission rebuild steps, major component refurbishment Tune Ups: Detailed procedures for spark plug replacement, air filter inspection/replacement, fuel filter replacement, and ignition timing adjustment (if applicable). Removal Install: Comprehensive instructions for removing and reinstalling major components like engines, transmissions, radiators, suspension parts, and body panels. Assemblies Disassemblies: Step-by-step breakdown of component disassembly for inspection, repair, or replacement, including detailed diagrams. Technical Depth Depth: Comprehensive, covering from basic maintenance to in-depth engine and transmission disassembly/reassembly, and detailed electrical system diagnosis. Special Tools: Identifies and illustrates specific Mitsubishi special tools required for certain adjustments or repairs, with part numbers where available. Torque Specifications: Provides critical torque values for all fasteners to ensure correct assembly and prevent component damage or failure. Diagnostic Symbols: Explains the meaning and application of WARNING, CAUTION, and NOTE symbols used throughout the manual to highlight critical information. Manual Completeness Scope: A complete service manual covering all necessary instructions for any repair the vehicle may require, intended to equip technicians and owners with professional-level knowledge. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Printable: Yes Binding Type Digital Binding: N/A (Electronic delivery) Paper Type Digital Paper Type: N/A (Electronic delivery) ⚙️ Engine Specifications Primary Engine Engine Options: Likely included Mitsubishi's 6A1x V6 engines (e.g., 2.0L 6A12, 2.5L 6A13) and inline-4 engines (e.g., 2.0L 4G63, 2.4L 4G64) depending on the specific market and trim level. The V6 variants were often a hallmark of the Sigma nameplate. Performance Typical V6 Output: Outputs varied by displacement and market, but typically ranged from 150 hp to over 200...