🏷️ Basic Information

Make:

Mitsubishi

Model:

Diamante

Model Years Covered:

1996, 1997

Generation:

Second Generation (JDM: 1995-2001, North American: 1997-2004)

Chassis Code:

F30A, F40A (North American model likely F30A based on typical configurations)

👋 Introduction

Market Position:

The Mitsubishi Diamante was Mitsubishi's flagship sedan during this era, positioned as a premium, comfortable, and stylish vehicle often competing with other mid-size to full-size luxury sedans. It aimed to offer a blend of performance, refinement, and advanced features.

Competitive Analysis:

Competed with vehicles like the Toyota Avalon, Lexus ES, Acura Legend, Nissan Maxima, and other domestic and import luxury sedans. Its strengths often included a powerful V6 engine and unique styling.

Key Features:

Available V6 engines, optional all-wheel drive, luxurious interior appointments, advanced technology for its time, and a distinctive exterior design.

Value Proposition:

Provides factory-trained technician knowledge, enabling owners to perform maintenance and repairs effectively, saving significant labor costs.

📋 Manual Details

Coverage Areas:

All Styles Covered (Implies various trim levels and configurations within the 1996-1997 model years)

Page Count:

Hundreds of pages (specific count not provided, but described as comprehensive)

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Systems Covered:

General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection/Fuel System, Emission System, Heater/Air Conditioning, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle

Wheel Alignment Specifications:

Included in suspension section, providing caster, camber, and toe specifications for front and rear axles.

Tire And Wheel Specifications:

Details recommended tire sizes, pressures, and wheel specifications (bolt pattern, offset, size).

Procedures Included:

Maintenance, Repair, Rebuild, Refurbish, Restore, Diagnostics, Troubleshooting, Tuning, Step-by-step repair procedures, Detailed substeps, Notes, Cautions, Warnings, Illustrations, Diagrams, Photos, Advanced troubleshooting guide

Body And Chassis Repairs:

Covers chassis and body repairs, including interior components and restraint systems, detailing procedures for panels, trim, seats, and safety equipment.

Engine Diagnostics:

Covers diagnostic procedures for engine performance issues, including fuel system, ignition system, and emissions controls.

Transmission Diagnostics:

Detailed diagnostic and repair procedures for the automatic transmission, including solenoids, clutches, and control systems.

Brake System Repairs:

Covers brake pad replacement, rotor service, caliper overhaul, brake line inspection, ABS system diagnosis and repair.

Electrical System Troubleshooting:

Comprehensive procedures for diagnosing and repairing electrical faults, utilizing wiring diagrams and component testing.

Suspension And Steering Repairs:

Details replacement of shocks, struts, control arms, tie rods, power steering pump, and steering gear. Includes alignment specifications.

HVAC System Service:

Covers diagnosis and repair of heating, ventilation, and air conditioning systems, including refrigerant handling, component replacement, and control systems.

Technical Depth:

Complete, detailed, factory-level information for professional technicians and owners. Covers fundamentals to advanced repair and diagnostics.

Diagnostics Coverage:

Includes an advanced troubleshooting guide to help diagnose and correct problems across all covered systems.

Wiring Diagrams Coverage:

Detailed wiring diagrams are included, specifically integrated with electrical system troubleshooting for ease of use.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High Resolution, Printable (entire manual or selected pages)

Binding Type:

N/A (Digital download, printable)

Paper Type:

N/A (Digital download, user printable on preferred paper)

Searchable:

Yes, PDF format allows for text searching of content.

Delivery Method:

Digital Download Link provided on checkout page after payment completion.

Software Requirements:

Adobe PDF Reader

⚙️ Engine Specifications

Primary Engine 1996 1997:

3.5L V6 (6G74 SOHC MPI)

Engine Options:

In North America, the 1997 model primarily featured the 3.5L V6. Earlier or different market versions might have had other V6 options, but this manual focuses on the 1996-1997, implying the prevalent engine(s) for those years.

Horsepower 3.5L V6:

Approximately 210-220 hp (specific figures may vary slightly by year and market)

Torque 3.5L V6:

Approximately 228-230 lb-ft (specific figures may vary slightly by year and market)

Fuel System:

Multi-Point Fuel Injection (MPI)

Ignition System:

Electronic Ignition (Distributorless Ignition System - DIS, or Coil-on-Plug depending on specific sub-models and market)

Engine Code:

6G74 (for 3.5L V6)

Bore X Stroke 3.5L V6:

Refer to manual, typically around 93.0 mm x 85.8 mm for the 6G74.

Compression Ratio 3.5L V6:

Refer to manual, typically around 9.0:1 for the 6G74.

🔧 Transmission

Standard Transmission:

4-speed Automatic Transmission (INVECS-II system likely)

Optional Transmission:

None commonly offered in North American market for these years. AWD was an option, integrated with the automatic.

Transmission Features:

Electronic control, potentially with a 'Sport' or 'Economy' mode selector, and integration with optional All-Wheel Drive (AWD) systems.

📐 Dimensions

Wheelbase:

Approximately 110.2 inches (2799 mm)

Length:

Approximately 191.3 inches (4860 mm)

Width:

Approximately 70.7 inches (1796 mm)

Height:

Approximately 56.1 inches (1425 mm)

Curb Weight:

Approximately 3500-3800 lbs (1588-1724 kg), depending on configuration (FWD vs AWD)

Gross Vehicle Weight Rating Gvwr:

Refer to vehicle placard or manual. Typically around 4700-5000 lbs (2132-2268 kg).

🛡️ Safety Features

Safety Ratings:

NHTSA/IIHS ratings for this specific model year range are not readily available in summary form, but generally mid-90s vehicles had evolving safety standards. The manual would detail occupant protection systems.

Active Features:

Anti-lock Braking System (ABS) standard on most models, Traction Control System (TCS) may be available on higher trims or AWD models.

All Wheel Drive AWD System:

If equipped, the manual will detail the operation, maintenance, and troubleshooting of the AWD system, including differential and transfer case components.

Passive Features:

Driver and front passenger airbags, front and rear crumple zones, side-impact door beams, pretensioners for front seatbelts.

💡 Technology Features

Infotainment Features:

Premium audio systems were common, often with cassette decks, CD players, and multiple speakers. Automatic climate control was often available. The manual would detail operation and basic troubleshooting for these systems.

Driver Assistance Features:

ABS and Traction Control (mentioned under safety). Cruise control was standard or optional on most trims. The manual would cover the operation and service for these systems.

Connectivity Features:

Limited by 1996-1997 standards. Primarily focused on audio connectivity (cassette, CD). No modern Bluetooth or USB connectivity expected.

🔧 Maintenance

Oil Change Interval:

Refer to manual for specific mileage/time intervals, typically 5,000 - 7,500 miles (8,000 - 12,000 km) with synthetic oil, or 3,000-5,000 miles (5,000-8,000 km) with conventional.

Timing Belt Replacement Interval:

Typically every 60,000 - 90,000 miles (96,000 - 144,000 km) for the 6G74 engine. Crucial to verify with the manual as it's an interference engine.

Spark Plug Replacement Interval:

Refer to manual. Often around 60,000 - 100,000 miles for platinum or iridium plugs.

Engine Oil Type:

Refer to manual. Typically API SG or higher, viscosity SAE 5W-30 or 10W-30 for most climates.

Coolant Type:

Refer to manual. Typically a 50/50 mix of ethylene glycol coolant and distilled water. Specific Mitsubishi-approved coolant is recommended.

Transmission Fluid Type:

Refer to manual. Likely SPIII ATF (Automatic Transmission Fluid) or equivalent Dexron III/Mercon equivalent.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Power Steering Fluid Type:

Refer to manual. Likely ATF Dexron II/III or a specific power steering fluid.

Common Issues 1996 1997 Diamante:

Potential for distributor failure (if applicable to specific sub-models), aging suspension components (bushings, ball joints), HVAC system issues (blower motor, blend door actuators), and occasional transmission control module problems. The 6G74 engine is generally robust but requires adherence to maintenance schedules, especially timing belt replacement.

Engine Oil Capacity With Filter:

Refer to manual, typically around 4.5-5.0 quarts (4.3-4.7 liters) for the 3.5L V6.

Coolant Capacity:

Refer to manual, typically around 8.0-8.5 quarts (7.6-8.0 liters).

Transmission Fluid Capacity:

Refer to manual, typically around 3.5-4.0 quarts (3.3-3.8 liters) for a fluid change.

Brake Fluid Capacity:

Refer to manual, typically around 1.0-1.5 quarts (0.9-1.4 liters) for a flush and fill.

Oil Filter Part Number Example:

Refer to manual for exact OE part numbers. Aftermarket examples: Wix 51515, Fram PH8316.

Air Filter Part Number Example:

Refer to manual for exact OE part numbers. Aftermarket examples: Wix 49160, Fram CA3510.

📚 Vehicle History

Brand Heritage:

Mitsubishi has a long history in automotive manufacturing, known for its engineering prowess, particularly in areas like four-wheel drive and performance engines, even in its luxury offerings.

Model Evolution:

The second generation Diamante, introduced in 1995 for Japan and 1997 for North America, represented a significant styling and engineering update over the first generation, moving to a more rounded and aerodynamic design. It was based on the Mitsubishi Diamante platform.

Production Location:

Japan

Production Years:

Second Generation: 1995-2001 (JDM), 1997-2004 (North America)

🏆 Awards & Recognition

Recognitions:

The Diamante received various positive reviews for its comfortable ride and refined interior for its class. Specific awards for these model years might be less prominent than later models or competitor vehicles, but it was generally well-regarded as a competent luxury sedan.