Mitsubishi Eclipse 1990 1991 1992 1993 1994 Service Repair Manual

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🏷️ Basic Information Identification Make: Mitsubishi Model: Eclipse Generation: First Generation Years Covered: 1990, 1991, 1992, 1993, 1994 Codes Chassis Codes: D21A, D22A, D27A, D31A, D32A, D38A, D39A Platform: Chrysler...

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斯库: 420779

标签: 1990 1991 1992 1993 1994 Car Cars Eclipse Misc Mitsubishi

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Description

🏷️ Basic Information

Identification

Make:

Mitsubishi

Model:

Eclipse

Generation:

First Generation

Years Covered:

1990, 1991, 1992, 1993, 1994

Codes

Chassis Codes:

D21A, D22A, D27A, D31A, D32A, D38A, D39A

Platform:

Chrysler JA/JSA Platform (shared with Plymouth Laser, Eagle Talon)

👋 Introduction

Market Position

Segment:

Compact Sport Coupe/Convertible

Target Audience:

Enthusiasts, performance-oriented drivers, DIY mechanics

Competitive Analysis

Key Competitors:

Toyota Celica, Honda Prelude, Nissan 240SX, Mazda MX-6, Ford Probe

Key Features

Design Philosophy:

Stylish aerodynamic design, performance-oriented powertrains (especially the 4G63T), available AWD.

Notable Trims:

GSX (AWD Turbo), GST (FWD Turbo), GS (Naturally Aspirated), Base/DL (1.8L)

📋 Manual Details

Coverage Areas

Engine Coverage:

4G37 (1.8L SOHC), 4G63 (2.0L SOHC Non-Turbo), 4G63T (2.0L DOHC Turbocharged)

Transmission Coverage:

F5M21 (5-speed Manual), F4A22/F4A23 (4-speed Automatic), VCU (Viscous Coupling Unit) for AWD models

Drivetrain Coverage:

Front-Wheel Drive (FWD), All-Wheel Drive (AWD)

Body Style Coverage:

Coupe (GSX, GST, GS, Base/DL), Convertible (GS)

Page Count

Total Pages:

Manual Type

Type:

Workshop Service Manual / Repair Manual

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine assembly, cylinder head, block, crankshaft, pistons, connecting rods, camshafts, timing belt/chain, lubrication system, cooling system, fuel delivery (EFI), emissions control.

Engine Performance:

Engine control system (ECU diagnostics), ignition system, turbocharger system (for 4G63T models), boost control.

Transmission And Drivetrain:

Manual transmission overhaul, automatic transmission operation and diagnosis, clutch system, driveshafts, CV joints, differential, transfer case (for AWD).

Suspension And Steering:

Front and rear suspension components, springs, shock absorbers, control arms, stabilizer bars, steering gear, power steering system, wheel alignment specifications.

Brakes:

Brake system components (master cylinder, calipers, rotors, drums, pads), ABS system (where applicable), brake fluid specifications, bleeding procedures, parking brake.

Electrical System:

Battery, charging system (alternator), starting system, lighting system, ignition system, instrument cluster, wiring diagrams, fuses, relays, body control modules.

HVAC System:

Heating, Ventilation, and Air Conditioning system components, refrigerant types, service procedures, troubleshooting.

Body And Chassis:

Body panels, doors, windows, interior trim, convertible top mechanism, structural components, corrosion protection.

Fuel System:

Fuel tank, fuel pump, fuel injectors, fuel pressure regulator, fuel lines, evaporative emissions control (EVAP).

Exhaust System:

Exhaust manifold, catalytic converter, mufflers, pipes, oxygen sensors.

Procedures Included

Maintenance Procedures:

Oil changes, filter replacements, spark plug replacement, air filter replacement, coolant flushes, brake inspections, tire rotations.

Diagnostic Procedures:

Troubleshooting charts, symptom-based diagnostics, engine performance analysis, electrical system diagnosis, ABS fault finding.

Repair Procedures:

Component removal and installation, engine rebuilds, transmission overhauls, brake caliper replacement, suspension component replacement, electrical component repair.

Adjustment Procedures:

Idle speed adjustment, throttle cable adjustment, clutch pedal adjustment, ignition timing (if applicable).

Special Tools:

Identification and usage of special tools required for specific repair procedures.

Technical Depth

Depth Of Information:

Comprehensive, covering basic maintenance to complete engine and transmission rebuilds. Includes detailed diagrams, specifications, and troubleshooting guides.

Diagnostic Capabilities:

Advanced diagnostic procedures for engine control units (ECUs), fuel injection systems, and electronic components.

Wiring Diagrams:

Detailed, system-specific wiring diagrams for all electrical components and circuits.

📊 Manual Specifications

File Format

File Type:

Searchability:

Searchable text content

Print Quality

Print Readability:

High-resolution scans suitable for printing

Binding Type

Binding:

N/A (Digital PDF)

Paper Type

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Primary Engine

Engine 1.8L:

4G37, 1.8L SOHC I4, 98 hp @ 5500 rpm, 105 lb-ft @ 3500 rpm

Engine 2.0L Na:

4G63, 2.0L SOHC I4, 135 hp @ 6000 rpm, 125 lb-ft @ 4000 rpm (approx.)

Engine 2.0L Turbo:

4G63T, 2.0L DOHC I4 Turbocharged, 195 hp @ 6000 rpm, 203 lb-ft @ 3000 rpm (approx. for AWD GSX)

Engine 2.0L Turbo FWD:

4G63T, 2.0L DOHC I4 Turbocharged, 190 hp @ 6000 rpm, 195 lb-ft @ 3000 rpm (approx. for FWD GST)

Performance

Compression Ratio 4G63T:

8.5:1

Redline 4G63T:

Approximately 6500-7000 RPM

Fuel System

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type Required:

Unleaded gasoline (Octane rating varies by engine, premium for turbo models)

🔧 Transmission

Standard

Base Transmission:

5-speed Manual Transmission (F5M21)

Optional

Automatic Transmission:

4-speed Automatic Transmission (F4A22/F4A23)

Features

AWD System:

Full-time 4-wheel drive with viscous coupling center differential (Active Four Wheel Drive on GSX models)

Manual Gear Ratios F5M21:

Detailed ratios available in manual for each model variant and year.

Automatic Gear Ratios F4A22:

Detailed ratios available in manual for each model variant and year.

📐 Dimensions

Exterior

Wheelbase:

Approx. 98.8 inches (2510 mm)

Length:

Approx. 178.5 inches (4534 mm)

Width:

Approx. 68.9 inches (1750 mm)

Height:

Approx. 50.8 inches (1290 mm)

Weights

Curb Weight:

Varies by model and trim (approx. 2700-3200 lbs / 1225-1450 kg)

Gross Vehicle Weight Rating Gvwr:

Detailed specifications available in manual.

🛡️ Safety Features

Ratings

NHTSA Ratings:

Early 1990s vehicle, specific ratings for this generation may vary or not be consistently available across all model years in modern databases. Manual focuses on mechanical safety systems.

Active Features

Available on higher trims (e.g., GSX), standard on some late-model GST/GSX.

Traction Control:

Not typically available on this generation.

Passive Features

Airbags:

Driver's side airbag became standard over the model run. Passenger airbag introduced later in the generation (around '92-'93).

Seatbelts:

Three-point front seatbelts, rear seatbelts.

💡 Technology Features

Infotainment

Audio System:

Factory AM/FM Cassette stereo, optional CD player on higher trims. Speaker configurations vary.

Climate Control:

Manual climate control systems, A/C and heater functionality.

Driver Assistance

Cruise Control:

Available on most trims.

Anti Lock Brakes ABS:

Optional on many models, standard on some later turbocharged variants.

Connectivity

Original Connectivity:

Limited to factory radio and external antenna.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 3,000-7,500 miles or 3-6 months, depending on driving conditions and oil type. Consult manual for exact recommendations.

Timing Belt Replacement:

Crucial for 4G63/4G63T engines. Recommended every 60,000-100,000 miles or 5-7 years. Belt failure can cause severe engine damage (interference engine).

Spark Plug Replacement:

Typically every 30,000-60,000 miles depending on plug type.

Coolant Flush Interval:

Every 30,000-60,000 miles or 2-4 years.

Fluid Specifications

Engine Oil Type:

API SG or SH rated, viscosity varies by temperature (e.g., 5W-30, 10W-30, 10W-40). Refer to manual for precise recommendations.

Transmission Fluid Manual:

API GL-3 or GL-4 gear oil (e.g., SAE 75W-90 or 80W-90). Specific fluid type crucial.

Transmission Fluid Automatic:

Dexron II (or equivalent) automatic transmission fluid.

Coolant Type:

Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. Consult manual for specific type and capacity.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Known Issues

Turbo Lag 4G63T:

Characteristic of older turbo systems; can be mitigated with proper maintenance and tuning.

Oil Consumption:

Can occur on higher mileage engines due to worn piston rings or valve stem seals.

Clutch Wear:

Normal wear item, replacement frequency depends on driving style.

Power Window Motors:

Can be a failure point in the electrical system.

Rust And Corrosion:

Common on vehicles of this era, particularly in areas exposed to road salt. Check wheel wells, rocker panels, and chassis.

Transfer Case Oil Leaks AWD:

Potential for leaks from seals in the transfer case.

📚 Vehicle History

Brand Heritage

Mitsubishi Performance Focus:

Mitsubishi has a history of performance vehicles, including rally racing heritage (Lancer Evolution). The Eclipse was a key part of their sporty image in the 1990s.

Model Evolution

First Generation Launch:

Introduced in late 1989 for the 1990 model year. Designed in collaboration with Chrysler Corporation.

Major Updates Generation 1:

Minor styling tweaks and feature updates throughout the generation. Introduction of convertible model. Increased availability of AWD and turbo engines.

Production

Manufacturing Location:

Normal, Illinois, USA (Diamond-Star Motors Corporation - a joint venture between Mitsubishi and Chrysler)

🏆 Awards & Recognition

Recognitions

Car And Driver 10Best:

The Mitsubishi Eclipse GSX (AWD Turbo) was named to Car and Driver's 10Best list for 1991.

Motor Trend Car Of The Year:

While not winning the top award, it was a significant contender in the performance coupe segment.