Market Position:
The Mitsubishi Stealth (also known as the Dodge Stealth in North America) was a highly regarded sports car designed in collaboration with Chrysler and built by Mitsubishi. It occupied a unique segment of the automotive market, offering high performance and advanced technology, often competing with European exotics.
Competitive Analysis:
Competed with vehicles such as the Chevrolet Corvette, Nissan 300ZX (Z32), Toyota Supra (Mk IV), Mazda RX-7 (FD), and Porsche 968. Its AWD and powerful twin-turbo V6 engine options positioned it as a formidable competitor in the affordable exotic sports car class.
Key Features:
Sleek aerodynamic styling, available twin-turbocharged V6 engine, advanced AWD system with active aerodynamics (on some models), available four-wheel steering (4WS), comfortable and well-appointed interior.
Engine Coverage:
6G72 (3.0L SOHC MPI), 6G72 (3.0L DOHC Twin-Turbo MPI)
Transmission Coverage:
F4A51 (4-speed Automatic, FWD), W4A51 (4-speed Automatic, AWD), Getrag 5-speed Manual (AWD Twin-Turbo)
Chassis Coverage:
Front Wheel Drive (FWD), All Wheel Drive (AWD)
Body And Trim Coverage:
Base, ES, R/T, R/T Twin-Turbo
Page Count:
Approximately 1000+ pages (typical for a comprehensive service manual of this era)
Manual Type:
Service and Repair Manual
Engine Mechanical:
Engine assembly, cylinder head, valve train, crankshaft, pistons, connecting rods, timing belt replacement, lubrication system, cooling system, fuel injection system, ignition system, emissions control systems.
Transmission Manual:
Clutch system, transmission overhaul, gear selection mechanism, shift linkage adjustments.
Transmission Automatic:
Torque converter, planetary gear sets, valve body, hydraulic control systems, transmission fluid cooler, electronic transmission control unit (TCU) diagnostics.
Drivetrain AWD:
Transfer case operation and overhaul, viscous coupling unit, differential service (front and rear), CV joint and axle shaft replacement, AWD system control.
Suspension And Steering:
Front and rear suspension component replacement (struts, shocks, control arms, bushings), steering rack and pinion overhaul, power steering system, four-wheel steering (4WS) system (if equipped) diagnostics and repair.
Brakes:
Front and rear brake system service, hydraulic lines, master cylinder, brake booster, ABS system (Anti-lock Braking System) diagnostics and component replacement, parking brake.
Electrical And Electronics:
Wiring diagrams, fuse box locations and functions, relay identification, battery and charging system, starting system, lighting systems, power accessories (windows, locks, mirrors), instrument cluster diagnostics, ECU (Engine Control Unit) and TCU diagnostics, sensor testing.
Climate Control:
Air conditioning system (refrigerant handling, compressor, condenser, evaporator), heater core, blower motor, HVAC control panel diagnostics.
Body And Interior:
Body panel repair and replacement, door mechanisms, glass replacement, interior trim removal and installation, seat adjustments, safety belt systems.
Safety Systems:
Airbag system (SRS) diagnosis and component replacement, pre-tensioner systems.
Maintenance Procedures:
Oil changes, filter replacements, spark plug replacement, coolant flushes, brake fluid flushes, belt inspections and replacement, tire rotation.
Repair Procedures:
Detailed step-by-step instructions for component removal, overhaul, and reinstallation across all major vehicle systems.
Troubleshooting Guides:
Diagnostic flowcharts and symptom-based troubleshooting for common issues.
Diagnostic Procedures:
Component testing using multimeters, oscilloscopes, and diagnostic scan tools (OBD-I related).
Specification Data:
Torque specifications for fasteners, fluid capacities, alignment specifications, diagnostic trouble codes (DTCs) and their meanings.
Technical Depth:
Comprehensive, covering everything from basic scheduled maintenance to complete engine and transmission rebuilds, and advanced electrical system diagnostics.
Engine Type:
6G72 3.0L V6 SOHC MPI (Naturally Aspirated)
Engine Displacement Sa:
2972 cc
Horsepower Sa:
222 hp @ 6000 rpm
Torque Sa:
200 lb-ft @ 4000 rpm
Bore X Stroke Sa:
91.1 mm x 76.0 mm
Compression Ratio Sa:
8.9:1
Fuel System Sa:
Electronic Multi-Point Fuel Injection (MPI)
Ignition System Sa:
Electronic ignition with distributor
Cooling System Sa:
Pressurized liquid-cooled
Lubrication System Sa:
Wet sump
Timing Drive Sa:
Timing Belt
Engine Type Tt:
6G72 3.0L V6 DOHC Twin-Turbo MPI (Twin-Turbocharged)
Engine Displacement Tt:
2972 cc
Horsepower Tt:
300 hp @ 6000 rpm
Torque Tt:
307 lb-ft @ 2500 rpm
Bore X Stroke Tt:
91.1 mm x 76.0 mm
Compression Ratio Tt:
7.8:1
Fuel System Tt:
Electronic Multi-Point Fuel Injection (MPI) with Twin Intercooled Turbos
Ignition System Tt:
Electronic ignition with distributor (dual ignition coils)
Timing Drive Tt:
Timing Belt (Dual Overhead Camshafts - DOHC)
Transmission Type Fw:
4-Speed Automatic (F4A51)
Transmission Type Aw:
4-Speed Automatic (W4A51) with AWD
Transmission Type Manual:
5-Speed Manual (Getrag)
AWD System:
Advanced All-Wheel Drive system with active center differential and viscous coupling, optimized for performance handling.
4Ws System:
Optional Four-Wheel Steering (4WS) system for enhanced maneuverability at low speeds and stability at high speeds.
Automatic Transmission Fluid:
DIAMOND ATF SP-II or equivalent
Manual Transmission Fluid:
API GL-4 or GL-5 gear oil, SAE 75W-90 (check manual for specific viscosity recommendations)
Length:
Approx. 177.7 inches (4513 mm)
Width:
Approx. 74.2 inches (1885 mm)
Height:
Approx. 43.7 inches (1110 mm)
Wheelbase:
Approx. 97.2 inches (2469 mm)
Ground Clearance:
Approx. 5.0 inches (127 mm)
Curb Weight Base Fw:
Approx. 3362 lbs (1525 kg)
Curb Weight Rt AWD:
Approx. 3660 lbs (1660 kg)
Curb Weight Rt Tt:
Approx. 3715 lbs (1685 kg)
Cargo Capacity:
Limited due to sports car design, rear seating area with modest space. Exact figures vary by configuration but generally around 8-10 cubic feet.
Oil Change Interval:
Every 3,750 miles or 6 months, whichever comes first (check manual for severe driving conditions)
Timing Belt Replacement Interval:
Every 60,000 miles or 5 years, whichever comes first (critical for DOHC engines)
Spark Plug Replacement Interval:
Every 30,000 miles (standard ignition) or 60,000 miles (platinum/iridium plugs)
Coolant Flush Interval:
Every 24,000 miles or 2 years
Brake Fluid Flush Interval:
Every 24,000 miles or 2 years
Engine Oil Type Sa:
API SG or SH, SAE 5W-30 or 10W-30 (depending on climate)
Engine Oil Capacity Sa:
Approx. 4.5 quarts (4.3 liters) with filter
Engine Oil Type Tt:
API SG or SH, SAE 5W-30 or 10W-30 (depending on climate), consider synthetic for higher performance
Engine Oil Capacity Tt:
Approx. 4.7 quarts (4.5 liters) with filter
Coolant Type:
Ethylene glycol based antifreeze, 50/50 mix with distilled water
Power Steering Fluid:
DEXRON II or equivalent
Known Issues Engine Tt:
Turbocharger wear, intercooler leaks, blown head gaskets (especially on high-mileage DOHC engines), premature timing belt failure if not replaced at recommended intervals.
Known Issues AWD:
Transfer case fluid leaks, AWD system sensor failures, viscous coupling issues.
Known Issues 4Ws:
Actuator failures, hydraulic leaks in the 4WS system, requiring specialized diagnostics.
Known Issues Electronics:
Corrosion on electrical connectors, failure of climate control modules, power window motor failures.
Brand Heritage:
Mitsubishi has a history of producing innovative and performance-oriented vehicles, including iconic models like the Lancer Evolution and Eclipse. The Stealth represented Mitsubishi's foray into the high-performance sports car market, leveraging its engineering expertise.
Model Evolution:
The Mitsubishi Stealth was a product of the Mitsubishi-Chrysler partnership, based on the Dodge Stealth platform. It shared its underpinnings with the Dodge Stealth, but typically featured distinct interior and exterior styling cues, as well as specific Mitsubishi branding. It was produced from 1991 to 1996, with the 1992 model year representing the early iteration of this unique sports car.
Production Location:
Japan (specifically, Mitsubishi's Nagoya plant)
Production Years:
1991-1996