Vehicle Segment:
Full-size/Large Sedan
Target Audience For Manual:
DIY mechanics, independent repair shops, Mitsubishi enthusiasts
Competitors At Launch:
Toyota Avalon, Nissan Maxima, Ford Taurus, Buick LeSabre
Design Philosophy:
Focus on European-inspired styling and luxury appointments for the North American market.
Powertrain And Drivetrain:
Engine mechanical, fuel system, ignition system, emissions control, cooling system, lubrication system, exhaust system, transmission (automatic), transfer case (if applicable for AWD variants), drive axles, differentials.
Chassis And Suspension:
Front suspension, rear suspension, steering system, brake system (hydraulic, ABS), wheels and tires.
Electrical And Body:
Engine control module (ECM) and related sensors, instrument panel, lighting systems, power windows and locks, climate control system (HVAC), audio system, wiring diagrams, body exterior, body interior, safety systems (airbags if equipped).
Body And Interior:
Body panel removal and installation, door and window mechanisms, interior trim, seating, headliner, carpet replacement, panel repair, rust prevention.
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement, tire rotation.
Major Repairs:
Engine overhaul, transmission service and overhaul, brake caliper and rotor replacement, suspension component replacement (shocks, struts, control arms), steering rack service.
Diagnostics And Troubleshooting:
Symptom-based troubleshooting guides, diagnostic trouble codes (DTCs) and their meanings, pinpoint tests for electrical issues.
Wiring Diagrams:
Detailed, system-specific wiring diagrams for all electrical components and circuits.
Diagnostic Codes:
Comprehensive listing of OBD-I diagnostic trouble codes (DTCs) and their associated troubleshooting steps.
Diagnostic Capabilities:
Advanced diagnostic procedures, including component testing, sensor data interpretation, and wiring harness checks.
Repair Procedures:
Step-by-step repair instructions with torque specifications, special tool requirements, and detailed component removal/installation sequences.
Specification Data:
Includes detailed technical specifications for all major components and systems.
Digital Access Type:
Web-based subscription with one year of access
Print Readability:
High-resolution digital content, optimized for screen viewing and digital printing of specific sections.
Access Method:
Online portal with browser access
Digital Content Medium:
Digital text, diagrams, and illustrations
Diagram Quality:
Clear, detailed technical illustrations and diagrams
Searchability:
Likely searchable text content for quick information retrieval.
Engine Configuration:
3.0L SOHC V6 (24-valve)
Horsepower Estimate:
141 hp @ 4800 rpm (approximate)
Torque Estimate:
174 lb-ft @ 3300 rpm (approximate)
Fuel Delivery:
Electronic Fuel Injection (EFI)
Recommended Fuel Octane:
87 Octane (Regular Unleaded)
Coolant Type:
Proprietary Mitsubishi coolant or equivalent ethylene glycol-based coolant
Engine Oil Capacity:
4.5 US quarts (with filter) - consult manual for exact specification
Recommended Engine Oil Viscosity:
10W-30 or 5W-30 (depending on climate) - consult manual for exact specification
Transmission Type Standard:
4-speed Automatic Transaxle
Transmission Type Optional:
No manual transmission option available for 1992 model in North America
Transmission Fluid Type:
Mitsubishi Genuine ATF SP-II or equivalent DEXRON-III compatible fluid
Transmission Fluid Capacity:
Approximately 7.4 US quarts (for torque converter and cooler) - consult manual for exact specification
NHTSA Crash Test Ratings:
Not widely available or applicable in modern standardized formats for this era.
Braking System Type:
Front: Ventilated Disc, Rear: Solid Disc
Anti Lock Braking System:
Optional ABS system available
Airbags:
Driver-side airbag standard, passenger airbag optional in some markets/trims
Seat Belts:
Front 3-point seat belts with pretensioners, rear 3-point seat belts
Oil Change Interval:
Every 3,750 miles or 3 months, whichever comes first (under normal driving conditions) - consult manual for severe conditions.
Timing Belt Replacement Interval:
60,000 miles or 4 years, whichever comes first (critical for V6 engine).
Brake Fluid Type:
DOT 3 Brake Fluid
Power Steering Fluid Type:
ATF Dexron-II or equivalent
Common Wear Items:
Sway bar links, ball joints, CV axles (especially with AWD), catalytic converter, fuel injectors.
Potential Electrical Gremlins:
Faulty window regulators, door lock actuators, and intermittent dashboard warning lights can occur with age.
Maintenance Schedule Summary
Typical Tasks:
Includes inspection of exhaust system, suspension components, steering linkage, drive belts, and fluid levels at regular intervals.
Mitsubishi Motors History:
Established automotive manufacturer with a long history in Japanese and international markets.
Diamante Introduction Year:
1990 (Japan), 1991 (North America)
Diamante Design Influence:
Developed in conjunction with Mitsubishi's joint venture with Chrysler (Diamond-Star Motors) and influenced by European luxury sedan design trends.
Manufacturing Plant:
Okazaki Plant, Japan
