The Mitsubishi Eclipse, produced in 1998, represents a significant entry in the compact sports car segment. Available as both a coupe and a convertible, this vehicle offered a dynamic driving experience, particularly with its performance-oriented variants. Notable engine options included the robust 2.0L 4G63, offered in both naturally aspirated and turbocharged all-wheel-drive configurations, and the 2.4L 420A engine. The Eclipse was recognized for its distinctive styling, driver-focused interior, and competitive performance, often lauded by enthusiasts and competing with established models in its class. This comprehensive service manual provides detailed information for the maintenance, repair, and diagnostics of the 1998 Mitsubishi Eclipse. It covers all major systems, including the powertrain, drivetrain, chassis, electrical components, and body. Within its extensive pages, owners and technicians will find procedures for routine maintenance, in-depth repair and rebuild instructions, troubleshooting guides for common issues, and essential technical specifications. The manual is designed to assist in keeping the vehicle in optimal condition and ensuring its longevity. 🏷️ Basic Information Identification Make: Mitsubishi Model: Eclipse Year: 1998 Codes Chassis Codes: D3_A (coupe), D3_P (convertible) Engine Codes Primary: 4G63 (2.0L SOHC & DOHC Turbo) Engine Codes Secondary: 420A (2.4L SOHC) 👋 Introduction Market Position Segment: Compact sports car/coupe Target Audience: Enthusiasts, performance-oriented drivers, DIY mechanics Competitive Analysis Key Competitors: Nissan 240SX, Toyota Celica, Honda Prelude, Ford Probe, Mazda MX-6 Key Features Performance Variants: Available in naturally aspirated and turbocharged AWD configurations, offering strong performance for its class. Design: Distinctive styling, available as coupe or convertible, with a driver-focused interior. 📋 Manual Details Coverage Areas Covered Regions: North America (primarily US/Canada market) Trim Levels: GSX, GS, GST, RS, Spyder GS, Spyder GST Page Count Estimated Page Count: ~1500-2000+ pages (typical for comprehensive factory service manual) Manual Type Type: Full Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical (4G63, 420A), engine management, fuel system, ignition system, exhaust system, lubrication system, cooling system, turbocharger system (for turbo models) Drivetrain: Manual transmission (F5M33, KM212), automatic transmission (F4A33), transfer case (AWD models), differentials (front/rear), driveshafts, axles, CV joints Chassis: Suspension (front MacPherson strut, rear multi-link), steering system (power assisted), brakes (front vented discs, rear discs/drums), ABS system Electrical: Wiring diagrams, fuse box locations, lighting system, ignition system, starting system, charging system, power windows, power locks, audio system, HVAC controls, instrument cluster, diagnostic trouble codes (DTCs) Body And Interior: Exterior body panels, doors, hood, trunk, bumpers, glass, seals, interior trim, seats, dashboard, climate control system (HVAC) Procedures Included Maintenance: Oil changes, filter replacements, spark plug replacement, fluid checks and changes, timing belt replacement, belt tension adjustments Repair And Rebuild: Engine overhaul, transmission overhaul, clutch replacement, brake caliper rebuilding, suspension component replacement, electrical component repair Diagnostics And Troubleshooting: Engine performance issues, transmission shifting problems, electrical system faults, brake system diagnostics, ABS troubleshooting Installation: Accessory installation, component replacement procedures Technical Depth Depth: Comprehensive: Covers routine maintenance, minor repairs, major overhauls, and advanced diagnostics. Includes detailed step-by-step instructions, torque specifications, and schematics. 📊 Manual Specifications File Format File Type: PDF Searchable Text: Typically yes, for PDF downloads Print Quality Quality: High resolution, suitable for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine 1 Name: 4G63 (DOHC Turbocharged Inline-4) Engine 1 Displacement: 2.0 Liters (1997 cc) Engine 1 Bore X Stroke: 85.0 mm x 88.0 mm Engine 1 Horsepower: 210 hp @ 6000 rpm (GSX/GST) Engine 1 Torque: 205 lb-ft @ 3000 rpm (GSX/GST) Engine 1 Compression Ratio: 8.5:1 Engine 1 Valve Train: DOHC, 16 valves Engine 1 Induction: Turbocharged, Intercooled Secondary Engine Engine 2 Name: 420A (SOHC Inline-4) Engine 2 Displacement: 2.4 Liters (2351 cc) Engine 2 Horsepower: 140 hp @ 5500 rpm (GS/RS) Engine 2 Torque: 145 lb-ft @ 4000 rpm (GS/RS) Engine 2 Compression Ratio: 9.0:1 Engine 2 Valve Train: SOHC, 16 valves Engine 2 Induction: Naturally Aspirated Performance Fuel Type Required: Unleaded Premium (91+ octane recommended for 4G63 Turbo), Unleaded Regular (87+ octane for 420A) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Turbocharger Details: TD05H-14G (stock turbo for 4G63) 🔧 Transmission Standard Transmission Type Standard: 5-speed Manual Transmission (F5M33 - FWD, KM212 - AWD) Optional Transmission Type Optional: 4-speed Automatic Transmission (F4A33 - FWD/AWD) Features AWD System: Viscous coupling center differential with clutch pack for rear power transfer (AWD models) Clutch Type: Hydraulic diaphragm clutch 📐 Dimensions Exterior Length: ~178.7 inches (4539 mm) Width: ~69.4 inches (1763 mm) Height: ~50.2 inches (1275 mm) (coupe) / ~51.1 inches (1298 mm) (convertible) Wheelbase: ~100.4 inches (2550 mm) Front Track: ~59.8 inches (1520 mm) Rear Track: ~59.1 inches (1500 mm) Weights Curb Weight Min: ~3000 lbs (1360 kg) (RS FWD) Curb Weight Max: ~3400 lbs (1542 kg) (GSX AWD) Gross Vehicle Weight Rating Gvw R: Approx. 4000 lbs (1814 kg) 🛡️ Safety Features Ratings NHTSA Frontal...