🏷️ Basic Information

Make:

Mitsubishi

Model:

3000GT / GTO

Year:

1992

Chassis Code:

Z15A (FWD), Z16A (AWD)

👋 Introduction

Historical Market Segment:

Japanese sports car, grand tourer, competitor to Nissan 300ZX, Toyota Supra, Mazda RX-7, and Chevrolet Corvette.

Key Differentiators:

Advanced technology for its era (e.g., active aerodynamics, ECS, AWD), powerful V6 engine, luxurious interior, distinctive styling.

Manual Features:

Detailed sub-steps, notes/cautions/warnings, numbered instructions, bold figure numbers, detailed illustrations/drawings/photos, enlarged insets, numbered table of contents, combined troubleshooting and wiring diagrams.

📋 Manual Details

Primary Coverage:

North American & Japanese Domestic Market (GTO)

Estimated Page Count:

1000+

Type:

Full Service Repair Manual

Language:

English

Digital Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Engine overhaul, timing belt replacement, cylinder head, pistons, crankshaft, lubrication system, cooling system, fuel injection, exhaust system.

Engine Management:

ECU diagnostics, sensor testing (MAF, O2, crank, cam), ignition system, emissions control systems (EVAP, EGR).

Transmission Manual:

Clutch, gearbox overhaul, gear selection mechanism, torque specifications for fasteners.

Transmission Automatic:

ATF specifications, fluid level checks, valve body diagnosis, electronic control unit (ECU) interface.

Drivetrain:

All-wheel drive (AWD) system, viscous coupling unit (VCU) or active center differential (ACD), front and rear differentials, CV joints, driveshafts.

Suspension:

MacPherson strut front suspension, multi-link rear suspension, adaptive suspension system (ECS), springs, shock absorbers, control arms, steering knuckles.

Steering:

Power steering system, steering rack, tie rods, steering column, wheel alignment specifications.

Brakes:

Front and rear brake systems (disc brakes), ABS (Anti-lock Braking System) operation and diagnosis, brake fluid specifications, caliper service, rotor replacement.

Body And Chassis:

Body panel repair, structural integrity, door mechanisms, convertible top operation (if applicable), underbody protection.

Electrical System:

Wiring diagrams, component testing, fuse and relay locations, lighting systems, starter, alternator, battery, body control modules.

Climate Control:

HVAC system operation, refrigerant types, compressor, evaporator, heater core, climate control module.

Interior:

Dashboard removal, seat adjustments, trim panels, instrument cluster, SRS airbag system (service precautions).

Wheels And Tires:

Tire pressure recommendations, wheel torque specifications, wheel types and sizes.

Maintenance Tasks:

Oil change, filter replacement, coolant flush, spark plug replacement, brake pad/rotor replacement, timing belt replacement, accessory belt replacement, differential fluid changes, transmission fluid changes.

Diagnostic Procedures:

Troubleshooting guides for common symptoms, DTC (Diagnostic Trouble Code) retrieval and interpretation, component resistance and voltage testing, live data interpretation.

Repair Procedures:

Step-by-step instructions for engine rebuilds, transmission overhauls, suspension component replacement, brake system repairs, electrical component diagnosis and replacement, body panel repairs.

Rebuilding Procedures:

Detailed instructions for rebuilding engines, transmissions, differentials, and major mechanical components.

Restoration Procedures:

Guidance on refurbishing and restoring various vehicle systems and components.

Wiring Diagrams:

Comprehensive electrical wiring schematics for all vehicle systems.

Depth Of Information:

Extremely detailed, covering everything from basic maintenance to complete engine and transmission rebuilds, including advanced diagnostics and troubleshooting.

📊 Manual Specifications

Format:

PDF

Printable:

Fully printable

Binding:

Digital Download (no physical binding)

Paper Type:

N/A (Digital)

Software Requirements:

Adobe PDF Reader, WinRAR (for potential archives)

Operating Systems:

All versions of Windows and Mac

⚙️ Engine Specifications

Engine Type:

6G72 DOHC Twin-Turbocharged V6

Displacement:

3.0 Liters (2972 cc)

Horsepower (Approx.):

300-320 hp @ 6000 rpm (depending on market/spec)

Torque (Approx.):

307-315 lb-ft @ 2500-3000 rpm (depending on market/spec)

Fuel Delivery:

Multi-point Fuel Injection (MPI) with Twin Turbochargers

Bore X Stroke:

85.0 mm x 88.0 mm

Compression Ratio:

8.0:1

Engine Code Variations:

6G72 (Naturally Aspirated), 6G74 DOHC V6 (later models/variations)

🔧 Transmission

Transmission Type:

5-speed Manual

Transmission Type:

4-speed Automatic with Sportronic

Drivetrain Options:

Front-Wheel Drive (FWD), All-Wheel Drive (AWD) with Active Center Differential (ACD) and Rear Viscous Coupling Unit (VCU) or Active Rear Differential (optional on some AWD models).

Manual Transmission Fluid:

GL-4 or GL-5 Gear Oil (e.g., API GL-4/GL-5 SAE 75W-90)

Automatic Transmission Fluid:

Dexron III or equivalent (e.g., ATF SP-II M)

📐 Dimensions

Length:

4,615 mm (181.7 in)

Width:

1,840 mm (72.4 in)

Height:

1,250 mm (49.2 in)

Wheelbase:

2,500 mm (98.4 in)

Curb Weight (Approx.):

1,600-1,750 kg (3,527-3,858 lbs) depending on drivetrain and options

Standard Tire Size:

225/55 VR 16

Optional Tire Size:

245/40 ZR18 (on later models or specific trims)

Wheel Bolt Pattern:

5x114.3

Wheel Offset:

ET 45 (common)

🛡️ Safety Features

Crash Test Results:

Limited official NHTSA/IIHS data for this specific model year, but generally considered a robust structure for its era.

Active Safety Systems:

Anti-lock Braking System (ABS), All-Wheel Drive (AWD) on specific models for enhanced traction and stability.

Passive Safety Systems:

Driver and passenger front airbags, crumple zones, reinforced safety cell, three-point seatbelts with pretensioners.

💡 Technology Features

Audio System:

Factory premium audio system, often with cassette player and radio. Some models featured a CD player option.

Advanced Features:

Four-wheel steering (AWS on Japanese models, optional on US), Active Aerodynamics (variable front splitter and rear spoiler), Electronic Control Suspension (ECS).

OBD Ii Compliance:

Not OBD-II compliant. Uses proprietary Mitsubishi diagnostic connectors. Manual will cover specific diagnostic port protocols.

🔧 Maintenance

Timing Belt Replacement:

Recommended every 60,000 miles (96,000 km) or 5 years, whichever comes first, due to interference engine design.

Engine Oil Change:

Every 3,000-5,000 miles (4,800-8,000 km) or 3-6 months, depending on driving conditions.

Transmission Fluid Change:

Manual: Every 30,000-60,000 miles (48,000-96,000 km). Automatic: Every 25,000-50,000 miles (40,000-80,000 km).

Coolant Replacement:

Every 30,000 miles (48,000 km) or 2 years.

Engine Oil Capacity:

Approximately 5.2 quarts (4.9 liters) with filter (check manual for exact amount).

Engine Oil Type:

10W-30 or 10W-40, API SG/SH certified (consult manual for specific viscosity based on climate).

Coolant Type:

Ethylene Glycol based antifreeze, 50/50 mix with distilled water.

Timing Belt Failure:

Due to interference engine design, timing belt failure is catastrophic. Regular replacement is critical.

Ecs Failure:

Electronic Control Suspension (ECS) components (shocks, control modules) can fail over time, leading to a harsh ride or leaks. Often converted to conventional suspension.

Turbocharger Issues:

Early turbocharger failures can occur due to heat soak and lack of proper maintenance or abuse. Intercoolers and piping can also develop leaks.

Active Aerodynamics:

The active front spoiler and rear wing mechanisms can become inoperative due to worn motors or linkage issues.

Head Gasket Failure:

While not as prevalent as on some other V6 engines, head gasket failures can occur, especially on high-mileage or modified vehicles.

📚 Vehicle History

Mitsubishi Performance Legacy:

Mitsubishi has a history of performance vehicles, including rally cars (Lancer Evolution) and sports cars, positioning the 3000GT as a flagship GT offering.

First Generation 1990-1993:

The 1992 model is part of the first generation of the 3000GT/GTO, characterized by its advanced technology, including four-wheel steering (AWS - standard on Japanese GTO, optional on US 3000GT), active aerodynamics (active front spoiler, active rear wing), and electronically controlled suspension (ECS).

Production Plants:

Mizushima Plant, Kurashiki, Okayama, Japan

Production Years:

1990-1999 (all generations)

🏆 Awards & Recognition

Car And Driver Year:

Car and Driver's Ten Best list for 1992.