Troubleshooting, Step-by-step repair procedures, Electrical system diagnosis and repair
Technical Depth
Depth:
Complete disassembly and reassembly guidance, detailed substeps, notes, cautions, and warnings
Illustrations:
Hundreds of photos and illustrations, enlarged inset views for detailed part examination
📊 Manual Specifications
File Format
Format:
PDF
Compatibility:
Windows PC, Mac
Print Quality
Printability:
Printable without restriction (entire manual or selected pages)
Binding Type
Binding:
Digital Download (printable for physical binding)
Paper Type
Paper Recommendation:
Standard printing paper (user dependent)
⚙️ Engine Specifications
Primary Engine
Engine Code And Type:
6G72 (3.0L V6, SOHC or DOHC)
Performance
Horsepower Range:
Approximately 150-200 hp (depending on SOHC/DOHC and market)
Torque Range:
Approximately 180-200 lb-ft (depending on SOHC/DOHC and market)
Fuel System
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded Gasoline
🔧 Transmission
Standard
Transmission Type Standard:
4-speed Automatic Transmission
Optional
Transmission Type Optional:
Potentially a 5-speed manual in some markets or specific trims (less common for Sigma).
Features
AWD Option:
Availability of an All-Wheel Drive (AWD) system (often designated as 'Viscous Coupling AWD' or similar).
📐 Dimensions
Exterior
Wheelbase:
Approximately 107.1 inches (2720 mm)
Length:
Approximately 192.7 inches (4895 mm)
Weights
Curb Weight Range:
Approximately 3400-3700 lbs (1542-1678 kg)
🛡️ Safety Features
Ratings
NHTSA Front Impact:
Likely 4-star rating (based on typical performance of vehicles from this era, specific data may vary)
Active Features
Braking System:
Front Ventilated Discs, Rear Solid Discs (ABS typically standard or optional)
Traction Control:
Optional Traction Control System (TCS) available on some models.
Passive Features
Airbags:
Driver and passenger airbags standard.
Seatbelts:
Front pretensioner seatbelts.
💡 Technology Features
Infotainment
Audio System:
Factory AM/FM stereo with cassette player and CD player (optional on some trims).
Climate Control:
Automatic climate control with digital display available on higher trims.
Driver Assistance
Cruise Control:
Standard cruise control.
Keyless Entry:
Optional keyless entry system.
Connectivity
Auxiliary Input:
Not typically equipped with factory auxiliary inputs; aftermarket solutions available.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,750 - 5,000 miles (6,000 - 8,000 km) or 6 months, whichever comes first.
Timing Belt Replacement:
Every 60,000 - 90,000 miles (96,000 - 145,000 km) or 5-7 years, critically important due to interference engine design.
Fluid Specifications
Engine Oil Type:
API SG/SH or higher, SAE 5W-30 or 10W-30 (refer to manual for exact viscosity based on temperature).
Coolant Type:
Mitsubishi Super Long Life Coolant (MS-97641) or equivalent ethylene glycol-based coolant with corrosion inhibitors.
Transmission Fluid Type:
Dexron III/Mercon Automatic Transmission Fluid (ATF) or equivalent.
Known Issues
Engine Mounts:
Premature wear and failure of engine mounts, leading to vibrations.
Suspension Components:
Wear in ball joints, tie rod ends, and control arm bushings, particularly with higher mileage.
Oxygen Sensors:
Failure of oxygen sensors, leading to poor fuel economy and check engine light illumination.
Exhaust System:
Corrosion and leaks in the exhaust system, particularly in rust-prone climates.
📚 Vehicle History
Brand Heritage
Parent Company:
Mitsubishi Motors Corporation
Model Evolution
Previous Generation:
First Generation Sigma (1990-1996), often based on the Mitsubishi Debonair or Diamante.
Platform Sharing:
Shared platform with Mitsubishi Diamante (Japan) and potentially other Mitsubishi models depending on market.
Production
Manufacturing Location:
Primarily Japan (for Mitsubishi Diamante, which Sigma was based on)
Production Years Global:
1990-2005 (as Diamante/Sigma lineage)
🏆 Awards & Recognition
Recognitions
Safety Awards Typical:
May have received good crash test ratings for its era, but specific industry awards for this model are not widely documented.
Ratings
Consumer Reports Typical:
Generally considered a reliable vehicle for its time, though some noted areas for improvement in certain components. Specific year ratings would require access to historical consumer reports.
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