🏷️ Basic Information

Make:

Mitsubishi

Model:

Eclipse

Year:

2004

Generation Code:

3rd Generation (2000-2005)

Chassis Code:

D53A

👋 Introduction

Segment:

Compact Sports Coupe / Convertible

Target Audience:

Enthusiasts, DIY mechanics, professional repair shops

Key Competitors:

Honda Civic Si, Acura RSX, Toyota Celica, Ford Focus SVT, Chevrolet Cavalier Z24

Manual Benefit:

Provides official, detailed technical information for accurate diagnosis and repair, reducing reliance on guesswork and potentially saving money.

Vehicle Appeal:

Known for its sporty styling, available All-Wheel Drive (AWD) on certain trims, and performance-oriented V6 engine option.

📋 Manual Details

Primary Coverage:

2004 Mitsubishi Eclipse

Engine Coverage:

All 2004 Eclipse Engine Variants

Transmission Coverage:

All 2004 Eclipse Transmission Variants

Estimated Page Count:

1500+ (Software Estimated)

Type:

Official Service & Repair Manual Software

Language:

English

Format:

Software (Digital Download)

📖 Manual Coverage

Powertrain:

Engine, Fuel System, Exhaust System, Transmission (Manual & Automatic), Drivetrain (FWD/AWD)

Chassis:

Suspension (Front & Rear), Steering System, Brake System (Front & Rear, ABS)

Electrical:

Wiring Diagrams, Lighting System, Ignition System, Charging System, Starting System, Power Accessories, Body Control Modules, ECU/ECM Diagnostics

Body And Interior:

Body Panels, Doors, Interior Trim, Seats, HVAC System, SRS Airbag System

Maintenance:

Scheduled Maintenance, Fluid Changes, Filter Replacements, Spark Plug Replacement, Belt Inspection/Replacement

Diagnostics:

Troubleshooting Guides, Fault Code Interpretation (OBD-II), Component Testing

Repair:

Engine Rebuild Procedures, Transmission Overhaul, Brake Caliper Replacement, Suspension Component Replacement, Electrical Component Repair/Replacement

Special Procedures:

Timing Belt Replacement, Clutch Replacement, Differential Service (AWD), Air Conditioning System Servicing

Depth:

Comprehensive: From basic fluid checks to complete engine and transmission overhauls, including detailed diagnostic procedures and torque specifications.

📊 Manual Specifications

Software Type:

Proprietary Software (likely CD-ROM or downloadable installer requiring installation on a PC)

Print Capability:

Printable pages via software interface

Binding:

N/A (Software)

Paper:

N/A (Software)

⚙️ Engine Specifications

Engine 1 Displacement:

2.4L

Engine 1 Type:

Inline-4 (4G64 SOHC/DOHC)

Engine 1 Horsepower:

147 hp @ 5800 rpm (SOHC)

Engine 1 Torque:

152 lb-ft @ 4000 rpm (SOHC)

Engine 2 Displacement:

3.0L

Engine 2 Type:

V6 (6G72 SOHC MIVEC)

Engine 2 Horsepower:

197 hp @ 5500 rpm (2004 GT)

Engine 2 Horsepower Turbo:

205 hp @ 5500 rpm (2004 GT-E AWD - Less common in 2004)

Engine 2 Torque:

205 lb-ft @ 4000 rpm (2004 GT)

0 60 Mph 2 4L:

Approx. 8.5 - 9.5 seconds

0 60 Mph 3 0L FWD:

Approx. 7.0 - 7.5 seconds

0 60 Mph 3 0L AWD:

Approx. 6.5 - 7.0 seconds

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline

Fuel Recommendation 2 4L:

87 Octane

Fuel Recommendation 3 0L:

87 Octane (Premium Recommended for optimal performance)

🔧 Transmission

Transmission 2 4L:

5-Speed Manual

Transmission 3 0L:

5-Speed Manual (GT Trim)

Transmission 2 4L Optional:

4-Speed Automatic

Transmission 3 0L Optional:

4-Speed Automatic (GT Trim)

Drivetrain Options:

Front-Wheel Drive (FWD), All-Wheel Drive (AWD - primarily with 3.0L V6 GT models)

AWD System:

Viscous coupling center differential (AWD models)

📐 Dimensions

Length:

176.0 in (4470 mm)

Width:

69.1 in (1755 mm)

Height:

52.0 in (1321 mm)

Wheelbase:

103.0 in (2616 mm)

Front Headroom:

38.0 in (965 mm)

Front Legroom:

42.5 in (1080 mm)

Cargo Volume Coupe:

Approx. 10.1 cu ft

Curb Weight 2 4L:

Approx. 2,900 - 3,100 lbs (1315 - 1406 kg)

Curb Weight 3 0L FWD:

Approx. 3,100 - 3,300 lbs (1406 - 1497 kg)

Curb Weight 3 0L AWD:

Approx. 3,350 - 3,550 lbs (1520 - 1610 kg)

🛡️ Safety Features

NHTSA Driver Frontal Impact:

Likely 4 stars (based on similar vehicles of the era)

NHTSA Passenger Frontal Impact:

Likely 4 stars (based on similar vehicles of the era)

ABS:

Standard on GT trims, optional or standard on others depending on configuration.

Traction Control:

Available on some models, especially AWD.

Airbags:

Frontal airbags (driver and passenger) standard.

Seatbelts:

Three-point seatbelts with pretensioners.

💡 Technology Features

Audio System Options:

Factory AM/FM/CD player with available Monsoon premium audio system.

Navigation:

Not typically available from the factory for this model year; aftermarket options exist.

Cruise Control:

Standard on most trims.

Keyless Entry:

Available on higher trims.

Auxiliary Input:

Not standard; requires aftermarket adapter.

🔧 Maintenance

Oil Change Interval:

Every 3,750 miles or 3 months (whichever comes first), or 7,500 miles/6 months under severe driving conditions.

Tire Rotation Interval:

Every 7,500 miles

Timing Belt Interval:

105,000 miles or 7 years (whichever comes first) for V6; 90,000 miles or 7 years for 4-cylinder (check manual for exact spec).

Engine Oil Type:

API Service SG, SH, SJ, or SL; SAE 5W-30 (check manual for exact specification and viscosity under different temperature conditions)

Coolant Type:

Mitsubishi DiaQueen Super Long Life Coolant (or equivalent ethylene glycol-based coolant with the correct color and additive package)

Transmission Fluid Manual:

API GL-4 SAE 75W-90 (manual transmission)

Transmission Fluid Automatic:

DIAQueen ATF-SP III (or equivalent ATF SP III)

Power Steering Fluid:

Dexron II/III compatible fluid (check manual for specific recommendation)

Common Complaint 4 Cylinder:

Oil consumption, piston ring wear, timing belt failure (if not replaced on schedule), catalytic converter failure.

Common Complaint V6:

MIVEC system issues, intake manifold gaskets, timing belt replacement is critical, potential for transmission issues in high-mileage vehicles.

Common Complaint General:

Interior trim fitment issues, power window regulator failure, HVAC blower motor issues, suspension wear (bushings, struts).

📚 Vehicle History

Mitsubishi Motors Legacy:

Long history in motorsport and performance vehicles, known for models like the Lancer Evolution and original Eclipse.

Eclipse Generations:

1st Gen (1990-1994), 2nd Gen (1995-1999), 3rd Gen (2000-2005) - the manual covers the 3rd generation.

Third Gen Design:

Significant redesign from the previous generation, moving to a more rounded, distinct styling. Shared platform with Chrysler Sebring and Dodge Stratus (Chrysler's contribution to the Diamond-Star Motors partnership).

Manufacturing Location:

Normal, Illinois, USA (Diamond-Star Motors plant)

Production Years:

2000-2005 (for the 3rd Generation)

🏆 Awards & Recognition

Model Year Accolades:

While specific awards for the 2004 model are limited, the Eclipse platform generally received positive reviews for its styling and performance, especially the V6 and AWD variants.

Performance Reviews:

Often praised for value in the sports coupe segment, particularly the GT models offering a compelling blend of V6 power, optional AWD, and attractive styling.