Mitsubishi Sigma 1990-1995 Workshop Repair Service Manual

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🏷️ Basic Information Identification Make: Mitsubishi Model: Sigma Model Years Covered: 1990, 1991, 1992, 1993, 1994, 1995 Chassis Code: GD/GK Series (Global Platform) Codes Engine Codes Common: 6G71 (3.0L V6),...

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Type: Car

Vendor:

Sku: 70562

Tags: 1990 1991 1992 1993 1994 1995 Car Cars Mitsubishi Sigma

Product variants

Description

🏷️ Basic Information

Identification

Make:

Mitsubishi

Model:

Sigma

Model Years Covered:

1990, 1991, 1992, 1993, 1994, 1995

Chassis Code:

GD/GK Series (Global Platform)

Codes

Engine Codes Common:

6G71 (3.0L V6), 6G72 (3.0L V6 MIVEC on later models), 6G73 (2.5L V6 DOHC)

Transmission Codes Common:

F4A51 (4-speed Automatic), W5MG1 (5-speed Manual), KM150 (5-speed Manual)

👋 Introduction

Market Position

Segment:

Large Sedan/Luxury Sedan

Target Audience:

Owners seeking to perform self-maintenance and repairs, DIY enthusiasts, independent repair shops

Competitive Analysis

Competitors Era:

Toyota Camry/Avalon, Honda Accord, Nissan Maxima, Ford Taurus, Chevrolet Lumina

Key Features

Value Proposition:

Enables significant cost savings on maintenance and repairs by empowering owners with professional-grade information

Ease Of Use:

Numbered instructions, clear diagrams, and comprehensive troubleshooting facilitate efficient repairs

📋 Manual Details

Coverage Areas

Primary Coverage:

All models, engines, trims, and transmission types

Geographical Coverage:

Likely covers global specifications as Sigma was sold under various names (e.g., Diamante in North America)

Page Count

Estimated Page Count:

Hundreds of pages (as stated in product description)

Manual Type

Type:

Workshop Repair and Service Manual

Authenticity:

Original manufacturer's manual equivalent

Language

Language:

English

Format

File Format:

PDF Download

Delivery Method:

Instant Download

📖 Manual Coverage

Systems Covered

Engine Management:

Engine service, repair, fuel injection, fuel system, emission system, engine control system

Drivetrain:

Transmission service/repair, differential, drive axle

Chassis:

Brake system, suspension, steering, chassis, body

Electrical:

Electrical system, wiring diagrams, engine control system

Comfort And Convenience:

Heater, Air Conditioning, Interior, Restraint System

Procedures Included

Maintenance:

General maintenance, periodic lubrication, fluid checks and changes

Diagnostics:

Troubleshooting, diagnostic procedures for electrical systems

Repair And Rebuild:

Detailed substeps for repair procedures, disassembly, assembly, cleaning, and reinstallation

Technical Data:

Critical specifications, torque values, clearances

Technical Depth

Depth:

Comprehensive; designed for professional technicians, covering detailed diagnostics and repairs

Visuals:

Detailed illustrations, drawings, photos, enlarged insets for specific parts

📊 Manual Specifications

File Format

Format:

Requirements:

Adobe PDF Reader, WinZip

Compatibility:

All Versions of Windows & Mac

Print Quality

Printability:

Full Printable

Zoom Functionality:

YES (Zoom IN/OUT)

Binding Type

Binding:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Type Common:

V6 SOHC/DOHC

Displacement Common:

2.5L, 3.0L

Performance

Horsepower Range:

Approx. 170-220 hp (depending on specific engine and year)

Torque Range:

Approx. 200-260 lb-ft (depending on specific engine and year)

Fuel System

Injection Type:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline

Engine Management

ECU Coverage:

Includes detailed information on Engine Control Unit (ECU) and associated sensors and actuators

🔧 Transmission

Standard

Transmission Type Standard:

4-speed Automatic

Optional

Transmission Type Optional:

5-speed Manual

Features

AWD Availability:

Available on some models/trims (often designated 'V6 AWD' or similar)

Fluid Specifications

Automatic Transmission Fluid Type:

Diamond SP-III or equivalent (check specific manual for exact spec)

Manual Transmission Fluid Type:

GL-4 or GL-5 Gear Oil (viscosity typically 75W-90)

📐 Dimensions

Exterior

Body Style:

4-door Sedan

Weights

Curb Weight Range:

Approx. 3300 - 3700 lbs (depending on engine and trim)

🛡️ Safety Features

Ratings

Airbag Availability:

Driver's side airbag standard on later models, passenger airbag optional/standard on some trims

Active Features

ABS Availability:

Anti-lock Braking System (ABS) often standard or optional on higher trims

Passive Features

Seat Belts:

Front and rear seat belts

Restraint System Coverage:

Includes detailed information on the restraint system, potentially including pre-tensioners on later models

💡 Technology Features

Infotainment

Audio System:

Factory premium audio systems with cassette player and optional CD player

Driver Assistance

Cruise Control:

Standard on most models

Connectivity

Remote Keyless Entry:

Optional on certain trims

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 3,750-5,000 miles or 6 months, whichever comes first (refer to manual for exact spec)

Timing Belt Replacement:

Crucial for 6G7x engines; generally recommended every 60,000-90,000 miles (check manual for specific engine)

Spark Plug Replacement:

Recommended around 30,000-60,000 miles, depending on plug type (refer to manual)

Fluid Specifications

Engine Oil Type:

API SG or higher; SAE 10W-30 or 10W-40 typically recommended (check manual)

Coolant Type:

Ethylene Glycol based, typically a 50/50 mix with distilled water. Consult manual for specific Mitsubishi coolant specification.

Brake Fluid Type:

DOT 3 or DOT 4

Known Issues

Common Wear Items:

CV axles, engine mounts, suspension bushings, oxygen sensors, catalytic converter

Engine Specific Concerns:

Potential for oil leaks, timing belt failure if not replaced proactively, occasional head gasket issues on high-mileage V6s

📚 Vehicle History

Brand Heritage

Manufacturer History:

Mitsubishi Motors Corporation, known for its engineering and diverse product range.

Model Evolution

Platform:

Based on Mitsubishi's global platform, shared with models like the Diamante.

Market Variants:

Sold as Mitsubishi Sigma in many markets, but also as Mitsubishi Diamante in North America and other regions.

Production

Production Years:

1990-1996 (Generation 1)

🏆 Awards & Recognition

Recognitions

Initial Reception:

Generally well-received for its styling, ride comfort, and V6 power, competing effectively in the mid-size luxury sedan segment.