2003 Mitsubishi Eclipse Service and Repair Manual

2003 Mitsubishi Eclipse service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

• Step-by-step repair procedures and service information
• Specifications and reference data (where provided)
• Electrical diagnostics with wiring diagrams
• Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

• GT Hatchback 2-Door
• GT Convertible 2-Door
• GS Hatchback 2-Door
• RS Hatchback 2-Door
• GTS Hatchback 2-Door
• Spyder GTS Convertible 2-Door
• GT Coupe 2-Door
• Spyder GS Convertible 2-Door
• Spyder GT Convertible 2-Door

Engines covered

• 3.0L 2972CC 181Cu. In. V6 GAS SOHC Naturally Aspirated
• 2.4L 2351CC l4 GAS SOHC Naturally Aspirated

Index / Table of contents

• Body
• Brakes
• Chassis Electrical
• Driveline
• Engine Cooling
• Engine Electrical
• Engine Mechanical
• Engine Performance & Emission Controls
• Fuel System
• General Information & Identification
• Heating, Ventilation, & Air Conditioning
• Hybrid & Electric Vehicle Systems
• Steering
• Suspension
• Transmission, Clutch, & Transfer Case
• Wiring Diagrams