🏷️ Basic Information

Make:

Mitsubishi

Model:

3000GT

Year:

1991

Chassis Code:

Z16A (for VR-4)

Engine Code:

6G72

👋 Introduction

Market Segment:

Sports Car / Grand Tourer

Key Competitors 1991:

Nissan 300ZX (Z32), Toyota Supra (Mk3/Mk4 prelude), Mazda RX-7 (FC3S/FD3S), Chevrolet Corvette (C4), Dodge Stealth (rebadged Mitsubishi GTO).

Unique Selling Points:

Advanced AWD system, four-wheel steering (4WS), electronically controlled suspension (ECS), twin-turbocharged engine option, aggressive styling.

Initial Release Year:

1990 (as GTO in Japan), 1991 (as 3000GT in North America)

📋 Manual Details

Systems Covered:

Engine mechanical, engine fuel & emission control, engine electrical, exhaust system, cooling system, lubrication system, transmission, driveline, steering, suspension, brakes, body electrical, chassis electrical, interior, exterior body, HVAC.

Estimated Page Count:

1500+

Manual Type:

Factory Service Manual (FSM)

Language:

English

Format:

Electronic Download (PDF)

📖 Manual Coverage

Engine Mechanical:

Detailed procedures for disassembly, inspection, assembly, and adjustment of all engine components, including cylinder head, pistons, crankshaft, connecting rods, camshafts, valves, and timing system.

Engine Fuel Emission Control:

In-depth coverage of the multi-point fuel injection (MPI) system, ignition system, idle air control (IAC), oxygen sensors, catalytic converter, and diagnostic trouble codes (DTCs).

Engine Electrical:

Wiring diagrams, component testing, starter, alternator, battery, ECU (Engine Control Unit) diagnostics, and sensor data.

Transmission:

Service and repair procedures for both the 5-speed manual transmission and the 4-speed automatic transmission, including fluid changes, component overhaul, and shift control.

Driveline:

Detailed information on the All-Wheel Drive (AWD) system, including the viscous coupling center differential, rear differential, axles, and CV joints.

Steering Suspension:

Front and rear suspension component diagnosis, alignment procedures, steering gear service, and Active Aerodynamics system (if applicable to the specific trim).

Brakes:

ABS (Anti-lock Braking System) diagnosis and repair, brake caliper, rotor, and pad replacement, hydraulic system bleeding, and parking brake adjustments.

Body Electrical:

Lighting systems, power windows, power locks, mirrors, remote keyless entry (if equipped), and interior/exterior lighting schematics.

HVAC:

Air conditioning system service, heater core replacement, climate control system diagnosis, and refrigerant handling.

Maintenance:

Scheduled maintenance intervals, fluid checks and changes (oil, coolant, brake fluid, transmission fluid, differential fluid), filter replacements, belt inspections and replacement, spark plug replacement, and general tune-up procedures.

Troubleshooting:

Systematic diagnostic procedures for common and uncommon problems, including symptom-based troubleshooting guides, wiring diagrams for diagnosis, and specific tests for various components.

Repair:

Step-by-step instructions for component removal, repair, and reinstallation, covering everything from minor adjustments to major overhauls.

Technical Specifications:

Torque specifications for all fasteners, diagnostic values (e.g., resistance, voltage), engine timing specifications, alignment data, and electrical component specifications.

Depth Of Coverage:

Comprehensive, covering from basic maintenance to in-depth engine, transmission, and chassis component overhaul and repair. Includes diagnostic procedures, wiring diagrams, and specifications for professional technicians.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution scans of original factory manual pages, ensuring clarity of text and diagrams.

Binding Type:

Not Applicable (Digital Download)

Paper Type:

Not Applicable (Digital Download)

Text Searchability:

Searchable text enabled for quick information retrieval.

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated V6

Engine Code:

6G72

Displacement:

3.0 Liters (2972 cc)

Configuration:

60-degree V6, SOHC 24-valve (non-turbo), DOHC 24-valve (twin-turbo)

Horsepower Na:

222 hp @ 6000 rpm

Torque Na:

200 lb-ft @ 4500 rpm

Horsepower Twin Turbo:

300 hp @ 6000 rpm

Torque Twin Turbo:

300 lb-ft @ 4500 rpm

Fuel Delivery:

Multi-Point Fuel Injection (MPI)

Fuel Type:

Unleaded Gasoline (91 Octane Recommended)

Cooling Type:

Liquid Cooled

Oil Capacity:

Approximately 4.7 US quarts (4.5 liters) with filter change.

Timing Belt Replacement Interval:

Recommended every 60,000 miles or 5 years. Critical for DOHC engines.

🔧 Transmission

Transmission Type Na:

5-speed Manual

Transmission Type Tt:

4-speed Automatic with Sportronic (paddle shifters on later models, not 1991)

AWD System:

Full-time All-Wheel Drive (on VR-4 and base models depending on market).

Four Wheel Steering:

ECS (Electronic Controlled Suspension) with 4WS (Four-Wheel Steering) available on some trims.

Manual Transmission Fluid:

API GL-4, SAE 75W-90 or SAE 75W-85 (refer to manual for exact spec).

Automatic Transmission Fluid:

Dexron III or equivalent.

Transfer Case Fluid:

API GL-5, SAE 75W-90 (for AWD models).

Rear Differential Fluid:

API GL-5, SAE 75W-90 (for AWD models).

📐 Dimensions

Length:

Approx. 178.2 inches (4526 mm)

Width:

Approx. 70.9 inches (1801 mm)

Height:

Approx. 49.2 inches (1250 mm)

Wheelbase:

Approx. 97.2 inches (2469 mm)

Curb Weight Na:

Approx. 3461 lbs (1570 kg)

Curb Weight Tt:

Approx. 3700 lbs (1678 kg)

Gross Vehicle Weight Rating:

Varies by model and trim.

🛡️ Safety Features

NHTSA Crash Test Ratings:

Specific ratings for 1991 models are not readily available for all categories, but the era's vehicles generally performed moderately.

ABS:

Standard on VR-4, optional on other trims. Anti-lock Braking System.

Four Wheel Steering:

HICAS (High Capacity Actively Controlled Steering) on select models.

Airbags:

Driver-side airbag standard on most models.

Seatbelts:

Three-point inertia-reel seatbelts with pretensioners.

Body Structure:

Reinforced chassis and crumple zones.

💡 Technology Features

Audio System:

Factory AM/FM stereo with cassette player, often with optional CD player. Premium sound system available on some trims.

Dashboard Features:

Analog gauges, digital climate control display (on some models).

Active Aero:

Active Aero system with front air dam and rear wing that adjust with speed on VR-4 models.

Ecs:

Electronic Controlled Suspension (ECS) with adjustable damping.

Connectivity Features:

Limited by 1991 standards; primarily focused on vehicle performance and comfort features. No modern infotainment or smartphone integration.

🔧 Maintenance

Oil Change Interval:

Every 3,750 miles or 6 months, whichever comes first.

Air Filter Replacement:

Every 15,000 miles or 1 year.

Cabin Air Filter Replacement:

Not applicable on 1991 models (introduced later).

Brake Fluid Change:

Every 15,000 miles or 1 year.

Coolant Change:

Every 30,000 miles or 2 years.

Engine Oil Specification:

API SG, SAE 10W-30 or 10W-40 recommended. Check manual for specific climate recommendations.

Coolant Specification:

Mitsubishi Super Long Life Coolant (SLLC) or equivalent (ethylene glycol-based, pink or orange).

Brake Fluid Specification:

DOT 3.

Common Problems:

Timing belt failure leading to catastrophic engine damage (if not replaced on schedule), leaky fuel injectors, AC system leaks, power steering leaks, premature wear of AWD coupling units on high-mileage vehicles, ECS system failures.

Diagnostics Challenge:

Older diagnostic systems can be challenging; reliance on the FSM for specific troubleshooting is crucial.

📚 Vehicle History

Parent Company:

Mitsubishi Motors Corporation

Performance Legacy:

Mitsubishi has a history in motorsports, including rallying and touring car championships, which influenced the development of performance vehicles like the 3000GT.

Generation 1:

First generation (1990-1993) introduced the distinctive styling and advanced technology. Featured NA and Twin-Turbo VR-4 variants. Known as the Mitsubishi GTO in Japan.

Design Philosophy:

Designed to compete with established European and Japanese sports cars, emphasizing technology and performance.

Production Location:

Japan

Production Years:

1990-2000 (all generations)

🏆 Awards & Recognition

Car And Driver 10Best:

Named to Car and Driver's Ten Best list for 1991.

Motor Trend Import Car Of The Year:

Competitor to vehicles that frequently won Import Car of the Year awards in the early 1990s.