Front and rear suspension components, shock absorbers, struts, springs, control arms, bushings, steering rack, power steering system, wheel alignment specifications
Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement
Troubleshooting:
Diagnostic procedures for common faults, symptom-based troubleshooting guides, electrical system diagnostics
Repair:
Detailed step-by-step repair procedures for all major mechanical and electrical components, including engine rebuild, transmission overhaul, brake caliper replacement, suspension arm replacement
Diagnostic procedures for engine control, fuel system, ignition system, ABS, and transmission control. Includes DTC interpretation and pinpoint tests.
Wheel Alignment:
Specific alignment specifications (caster, camber, toe) and adjustment procedures.
Technical Depth
Depth:
Comprehensive; covers routine maintenance to major overhauls and diagnostics
Engine Rebuild:
Detailed instructions for engine disassembly, inspection, component replacement, and reassembly, including piston ring gap, bearing clearances, and valve seating.
Transmission Overhaul:
Comprehensive procedures for complete manual and automatic transmission disassembly, component replacement (clutches, seals, gears, synchros), and reassembly.
Engine Tuning:
Includes specifications for ignition timing, fuel trim adjustments, and basic performance parameter adjustments.
📊 Manual Specifications
File Format
Digital Format:
PDF
Print Quality
Print Quality:
High-resolution scans suitable for printing
Binding Type
Binding:
N/A (for digital), Spiral or perfect bound (for print)
Paper Type
Paper Type:
N/A (for digital), Heavy-duty paper stock recommended for print
⚙️ Engine Specifications
Primary Engine
Engine Code Na:
4G63 (2.0L SOHC Naturally Aspirated)
Engine Code Turbo:
4G63T (2.0L DOHC Turbocharged)
Performance
Horsepower Na:
Approx. 135 hp @ 6000 rpm
Torque Na:
Approx. 128 lb-ft @ 4000 rpm
Horsepower Turbo:
Approx. 195 hp @ 6000 rpm
Torque Turbo:
Approx. 203 lb-ft @ 3500 rpm
Fuel System
Injection Type:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline (87 octane minimum recommended for NA, 91 octane recommended for Turbo)
Engine Layout
Layout:
Inline 4-cylinder, transverse mounting
Block Material:
Cast iron (4G63/4G63T)
Head Material:
Aluminum
🔧 Transmission
Standard
Type Na:
5-speed Manual (FWD models)
Type AWD:
5-speed Manual (AWD models)
Optional
Type Auto Na:
4-speed Automatic (FWD models)
Type Auto AWD:
4-speed Automatic (AWD models)
Features
AWD System:
Mitsubishi's 'Viscous coupling' AWD system, with some models featuring driver-selectable modes or electronic control
Fluid Specs
Manual Transmission Fluid:
API GL-4, SAE 75W-90 or SAE 75W-85 (check manual for specific variant)
Automatic Transmission Fluid:
Dexron III or equivalent (refer to specific Mitsubishi specification)
📐 Dimensions
Exterior
Length:
Approx. 170.1 inches
Width:
Approx. 67.7 inches
Height:
Approx. 50.2 inches (Coupe)
Interior
Wheelbase:
Approx. 98.2 inches
Weights
Curb Weight FWD:
Approx. 2800-3000 lbs
Curb Weight AWD:
Approx. 3000-3200 lbs
Cargo
Cargo Volume:
Approx. 8.7 cu ft (Coupe)
🛡️ Safety Features
Ratings
NHTSA Driver Side Impact:
Not rated or not tested extensively by current NHTSA standards
Active Features
ABS:
Available on higher trims and AWD models
Passive Features
Airbags:
Driver's side airbag standard, passenger airbag optional on some models
Seatbelts:
Front and rear seat belts
💡 Technology Features
Infotainment
Audio System:
Factory-installed AM/FM cassette player with optional CD player, typically 4-6 speakers.
Driver Assistance
ABS:
Anti-lock Braking System available on select models.
Connectivity
Cruise Control:
Standard on most trims.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Every 3,750 miles or 3 months, or 7,500 miles/6 months with synthetic oil (refer to specific manual for details and severe service conditions).
Timing Belt Replacement:
Every 60,000 miles or 5 years (critical for 4G63/4G63T engines to prevent catastrophic damage).
Spark Plug Replacement:
Every 30,000 miles (standard plugs), longer for platinum/iridium plugs if fitted.
Fluid Specifications
Engine Oil Capacity:
Approx. 4.2 US quarts (4.0 liters) with filter change (4G63/4G63T)
Coolant Type:
Ethylene glycol based coolant, typically a 50/50 mix with distilled water (e.g., Mitsubishi DiaQueen Super Long Life Coolant).
Brake Fluid Type:
DOT 3 or DOT 4.
Known Issues
Turbocharger Durability:
Early turbo models may experience turbocharger wear or failure if maintenance is neglected or if subjected to abuse without proper warm-up/cool-down.
Timing Belt Tensioner:
Tensioner bearing failure can occur, emphasizing the importance of timely replacement. The 4G63T engine is an 'interference' engine, meaning belt failure causes piston-to-valve contact.
Oil Leaks:
Valve cover gaskets, oil pan gaskets, and front crankshaft seals can develop leaks over time.
Cv Joint Wear:
Front CV joints can wear, especially on AWD models or those subjected to hard acceleration.
Electrical Gremlins:
Aging wiring harnesses and connectors can lead to intermittent electrical issues.
📚 Vehicle History
Brand Heritage
Heritage Notes:
Mitsubishi has a history of producing robust and technologically advanced vehicles, often with a focus on performance and rally heritage (e.g., Lancer Evolution, though the Eclipse is a distinct line).
Model Evolution
First Generation:
The 1994 model is part of the first generation Eclipse (1989-1994), which established its identity as a sporty front-wheel-drive coupe with optional AWD.
Second Generation Transition:
This manual covers the end of the first generation, shortly before the redesign for the 1995 model year, which significantly altered the styling and platform.
Production
Manufacturing Location:
Built in Normal, Illinois, USA, by Mitsubishi Motors North America (MMNA) alongside its Chrysler corporate siblings.
🏆 Awards & Recognition
Recognitions
Automotive Journal Awards:
The first-generation Eclipse was generally well-received by automotive press for its styling, performance (especially the turbo models), and value proposition. It was often featured in 'best of' lists for affordable sports coupes.