🏷️ Basic Information

Make:

Mitsubishi

Model:

Diamante

Year:

2002

Generation Codes:

Second Generation (JS)

Chassis Codes:

JS22A

👋 Introduction

Vehicle Segment:

Large Sedan / Luxury Sedan

Target Audience:

Premium sedan buyers seeking comfort, performance, and advanced features.

Competitors:

Competed against vehicles like the Toyota Avalon, Buick Park Avenue, Ford Taurus, and import luxury sedans.

Distinguishing Features:

Available V6 engines, comfortable ride, spacious interior, sophisticated styling for its era.

Manual Purpose:

To provide comprehensive repair and maintenance guidance for dealership and independent repair facilities, as well as knowledgeable DIY enthusiasts.

📋 Manual Details

Systems Covered Overview:

Comprehensive coverage for all mechanical and electrical systems.

Estimated Page Count:

1500+

Manual Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Detailed disassembly, inspection, repair, and reassembly of engine components (pistons, rings, crankshaft, camshafts, valves, cylinder heads, timing system, etc.).

Engine Performance:

Engine tuning, performance diagnostics, fuel injection system operation and repair, ignition system analysis.

Transmission Automatic:

Complete overhaul procedures for the automatic transmission, including valve body, torque converter, clutch packs, and hydraulic control systems.

Transmission Manual:

If applicable, detailed repair for manual transmission components.

Drivetrain:

Front-wheel drive (FWD) axle and driveshaft repair, differential service.

Suspension:

Front and rear suspension component diagnosis, replacement, alignment procedures, shock absorber and strut service.

Brakes:

Brake system diagnosis, caliper service, rotor replacement, brake fluid bleeding, ABS system troubleshooting and repair, parking brake.

Steering:

Power steering system diagnosis, pump and rack replacement, steering column service.

Electrical System:

Detailed wiring diagrams, component location, circuit testing, starter, alternator, battery service, lighting system repair.

Body And Chassis:

Body panel removal and installation, interior trim, door mechanisms, glass replacement, chassis and frame diagnostics.

Heating Ventilation Air Conditioning:

A/C system diagnosis, refrigerant handling, compressor, evaporator, condenser service, heater core replacement, climate control systems.

Safety Systems:

Airbag system diagnosis, SRS (Supplemental Restraint System) component replacement, seat belt mechanisms.

Diagnostics:

OBD-II diagnostic trouble codes (DTCs), specific diagnostic procedures for various systems, sensor testing.

Maintenance Procedures:

Oil changes, filter replacements, spark plug replacement, coolant flushes, brake fluid replacement, power steering fluid replacement, transmission fluid and filter service.

Repair Procedures:

Engine rebuilds, transmission overhauls, suspension component replacement, brake caliper and rotor replacement, alternator and starter replacement, fuel pump replacement.

Troubleshooting Guides:

Step-by-step troubleshooting for common and uncommon issues, symptom-based diagnostics.

Wiring Schematics:

Detailed electrical wiring diagrams for all vehicle systems, including component pinouts and connector views.

Diagnostic Procedures:

Specific diagnostic routines for powertrain control modules (PCM), anti-lock brake systems (ABS), and climate control modules.

Depth Of Coverage:

Factory-level detail, suitable for professional technicians and advanced DIY mechanics.

Diagnostic Code Coverage:

Includes specific diagnostic trouble codes (DTCs) and troubleshooting trees for those codes.

Specification Data:

Provides torque specifications, clearances, fluid capacities, and other critical technical data.

Illustration Quality:

Detailed illustrations, diagrams, and exploded views to aid in understanding procedures.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text content with bookmarks for easy navigation.

Print Readability:

High-resolution scans ensuring clear text and diagrams for printing.

Binding:

N/A (Digital PDF)

Paper Quality:

N/A (Digital PDF)

⚙️ Engine Specifications

Engine Code:

6G72 (3.0L V6 SOHC)

Engine Description:

3.0-liter V6, SOHC, 24-valve

Bore X Stroke:

86.0 mm x 86.0 mm

Compression Ratio:

9.0:1

Horsepower:

200 hp @ 5750 rpm

Torque:

205 lb-ft @ 4500 rpm

Engine Code Optional:

6G75 (3.5L V6 SOHC)

Engine Description Optional:

3.5-liter V6, SOHC, 24-valve

Horsepower Optional:

210 hp @ 5500 rpm

Torque Optional:

231 lb-ft @ 3500 rpm

Engine Code Optional 2:

6G75 (3.5L V6 DOHC - ES, LS trims)

Engine Description Optional 2:

3.5-liter V6, DOHC, 24-valve

Horsepower Optional 2:

205 hp @ 5500 rpm

Torque Optional 2:

231 lb-ft @ 3500 rpm

Fuel System Type:

Electronic Multi-Point Fuel Injection (MPI)

Recommended Fuel:

87 Octane Unleaded Gasoline

🔧 Transmission

Transmission Type Standard:

4-speed Automatic (INVECS-II)

Transmission Type Optional:

5-speed Manual (rare on US models)

Transmission Features:

F4A51 INVECS-II Sport Mode automatic transmission with adaptive shift logic.

Transmission Fluid Type:

Diamond ATF SP-II M or equivalent DEXRON-III.

📐 Dimensions

Length:

194.1 inches (4930 mm)

Width:

70.9 inches (1801 mm)

Height:

55.7 inches (1415 mm)

Wheelbase:

113.1 inches (2873 mm)

Curb Weight Approx:

3600-3800 lbs (1633-1724 kg)

🛡️ Safety Features

NHTSA Frontal Crash Rating:

4-star driver, 4-star passenger (for 2002 model year)

Active Safety Features:

Anti-lock Braking System (ABS), Traction Control System (TCS - optional on some trims).

Passive Safety Features:

Driver and front passenger airbags, side-impact airbags (optional), front seatbelt pretensioners.

💡 Technology Features

Infotainment Features:

Available premium audio systems, CD player, cassette player, optional navigation system (late in model run).

Driver Assistance Features:

Cruise control, Anti-lock Braking System (ABS).

Connectivity Options:

Limited by era; primarily focused on audio system integration.

🔧 Maintenance

Oil Change Interval:

Every 5,000 to 7,500 miles (8,000 to 12,000 km) or 6 months, depending on driving conditions.

Transmission Fluid Change Interval:

Every 30,000 to 60,000 miles (48,000 to 96,000 km) or as specified in the manual.

Timing Belt Replacement Interval:

Every 60,000 to 90,000 miles (96,000 to 145,000 km) for the 6G72 and 6G75 SOHC engines. Crucial to follow manual's recommendation due to interference engine design.

Engine Oil Type:

API Service SJ or ILSAC GF-2, SAE 5W-30 or 10W-30. Consult manual for specific viscosity based on ambient temperature.

Coolant Type:

Mitsubishi Super Long Life Coolant (SLLC) or equivalent, which is a pink ethylene glycol-based coolant. Dilution 50/50 with distilled water.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Common Issues List:

Premature wear of front suspension components (ball joints, tie rod ends), potential for head gasket leaks on some V6 engines (though less common than earlier generations), A/C system leaks, transmission solenoid issues, occasional electrical gremlins. The manual would detail diagnostic procedures for these.

📚 Vehicle History

Manufacturer Heritage:

Mitsubishi Motors, a Japanese automotive manufacturer with a history of diverse vehicle production.

Generation Details:

The 2002 model year represents the second generation of the Diamante, which was produced from 1996 to 2004. This generation saw styling updates and mechanical refinements.

Production Plant:

Mizushima Plant, Kurashiki, Okayama, Japan.

🏆 Awards & Recognition

Historical Awards:

While not a segment leader in awards, the Diamante was recognized for its value and comfort in comparison to some domestic luxury sedans of its time.