Positioning:
The Mitsubishi 3000GT/GTO (and its rebadged sibling, the Dodge Stealth) was a flagship sports car, known for its advanced technology and performance, targeting the premium GT segment.
Competitors:
Nissan 300ZX (Z32), Toyota Supra (Mk IV), Mazda RX-7 (FD), Chevrolet Corvette (C4/C5)
Technological Innovations:
All-wheel drive (AWD), four-wheel steering (AWS - on some models), active aerodynamics (active rear spoiler, front air dam), electronically controlled suspension (ECS - on some models).
Value:
This comprehensive workshop manual is an invaluable resource for owners and technicians, offering detailed, step-by-step instructions and diagrams to maintain, diagnose, and repair all major systems of the Mitsubishi 3000GT/GTO and Dodge Stealth across its production run.
Primary Coverage:
North America, Japan, Europe
Type:
Workshop Service Repair Manual
Content Focus:
Repair and service focused, suitable for professional mechanics and experienced DIY enthusiasts.
Powertrain:
Engine (SOHC/DOHC, Turbocharged), Fuel System, Lubrication, Cooling, Intake & Exhaust, Emissions Control
Drivetrain:
Clutch, Manual Transmission (5-Speed), Automatic Transmission (4-Speed), Propeller Shaft
Suspension Steering Brakes:
Front Suspension, Rear Suspension, Rear Axle, Brakes, Power Steering, Wheels & Tires
Electrical Body Comfort:
Electrical System (General), SRS (Airbag) System, Body, Heating & Air Conditioning
Chassis And Body:
Frame, body panels, doors, windows, seats, interior trim, active aerodynamics.
Maintenance:
Routine checks, fluid changes, filter replacements, lubrication
Repair:
Component removal and installation, detailed disassembly and reassembly instructions
Diagnostics:
Troubleshooting guides, diagnostic procedures, common fault identification
Troubleshooting:
Detailed guides for diagnosing electrical faults, mechanical issues, and system malfunctions.
Depth:
Comprehensive mechanical and electrical repair, from basic maintenance to full engine and transmission rebuilds. Includes detailed diagrams and specifications.
Configuration:
3.0L (2972cc) SOHC V6, DOHC V6, DOHC V6 Twin-Turbo
Naturally Aspirated Power Hp:
~222-227 hp (SOHC/DOHC Non-Turbo)
Turbocharged Power Hp:
~300-320 hp (DOHC Twin-Turbo)
Injection Type:
Multi-point Fuel Injection (MPI)
ECU:
ECI Multi (Electronic Controlled Injection)
Drivetrain:
Front-wheel drive (FWD) or All-wheel drive (AWD)
Manual Transmission Fluid:
Refer to manual for specific API GL-4 or GL-5 gear oil recommendations (e.g., Mitsubishi DiaQueen GL-4 or equivalent)
Automatic Transmission Fluid:
Refer to manual for specific ATF specifications (e.g., Mitsubishi DiaQueen ATF-SP II M or equivalent)
Length:
Approx. 4615-4625 mm (181.7-182.1 in)
Width:
Approx. 1840-1845 mm (72.4-72.6 in)
Height:
Approx. 1220-1240 mm (48.0-48.8 in)
Curb Weight:
Approx. 1570-1740 kg (3461-3836 lbs), depending on configuration
NHTSA Ratings:
Information not readily available for specific model year ratings; manual covers SRS system diagnostics.
Advanced Driver Assistance:
AWS (All-Wheel Steering) on some models, ECS (Electronically Controlled Suspension) on some models, ABS (Anti-lock Braking System).
Restraint System:
Driver and Passenger Airbags (SRS), Seatbelts.
Audio System:
Factory AM/FM stereo with cassette and CD player (optional), speaker systems vary by trim level.
Advanced Features:
As mentioned, AWS and ECS were key technological differentiators when new.
Early Tech:
Limited by era; focus was on mechanical and aerodynamic technology rather than digital connectivity.
Oil Change:
Typically every 5,000 miles (8,000 km) or 6 months, or as per manual recommendation based on driving conditions.
Timing Belt:
Crucial replacement interval for interference engines, typically around 60,000 miles (96,000 km) or 4 years. This manual will detail the procedure.
Engine Oil:
Refer to manual for specific viscosity (e.g., 10W-30, 10W-40) and API classification (e.g., API SG or higher). Capacity ~4.5-5.0 liters.
Coolant:
Ethylene Glycol-based coolant (e.g., Mitsubishi Super Long Life Coolant or equivalent). Capacity ~8.0-9.0 liters.
Brake Fluid:
DOT 3 or DOT 4 brake fluid as specified by Mitsubishi.
Common Wear Items:
ECS components (if equipped), active aero systems, fuel pump, clutch wear, transmission synchros (on manual transmissions).
Engine Specifics:
Turbocharger health on twin-turbo models requires careful maintenance. Timing belt replacement is critical to prevent catastrophic engine damage.
Heritage Context:
Mitsubishi positioned the 3000GT/GTO as their halo sports car, showcasing technological prowess in an era of high-performance Japanese grand tourers.
Generations:
First Generation (1990-1993): Introduced advanced features like AWS and Active Aero. Second Generation (1994-1998): Significant styling updates (pop-up headlights removed), interior refinements, and powertrain enhancements. The Dodge Stealth was a rebadged version for the North American market, sharing most components with the Mitsubishi counterpart.
Manufacturing Location:
Japan
