Mitsubishi Mitsubishi Eclipse 2006-2012 3.8L V6 Engine Specifications
Explore the detailed 3.8L V6 engine specifications for the 2006-2012 Mitsubishi Eclipse. This guide covers performance, maintenance, and technical insights for enthusiasts and mechanics.
Overview Specifications
This document provides detailed specifications and technical information about the 3.8L V6 engine used in the 2006-2012 Mitsubishi Eclipse. It is designed for enthusiasts, mechanics, and owners who seek a comprehensive understanding of the engine's features, performance, and maintenance. The document is organized into sections for easy navigation, and a quick reference table is included for key specifications. Use the search and navigation instructions to find specific information efficiently.
How to Use
Use the search function to locate specific terms or phrases within the document. Enter keywords related to the engine's components, performance, or maintenance to quickly find relevant information.
Navigate through the document by scrolling through sections or using the table of contents. Each major section contains subsections with detailed points for easy access to specific information.
Key Specifications
Horsepower
265 hp
Torque
262 lb-ft
Displacement
3.8L
Compression Ratio
10.5:1
Fuel Efficiency
19 mpg (combined)
Available Specifications
Engine Performance
This section covers the performance characteristics of the 3.8L V6 engine, including horsepower, torque, and fuel efficiency. It also highlights the engine's capabilities in different driving conditions.
Engine Performance
This section covers the performance characteristics of the 3.8L V6 engine, including horsepower, torque, and fuel efficiency. It also highlights the engine's capabilities in different driving conditions.
Power and Torque
- Horsepower: 265 hp @ 5750 rpm
- Torque: 262 lb-ft @ 4500 rpm
- Redline: 6500 rpm
- Compression ratio: 10.5:1
- Fuel type: Premium recommended
- Engine management system: Mitsubishi Innovative Valve timing Electronic Control (MIVEC)
Fuel Efficiency
- City mileage: 16 mpg
- Highway mileage: 25 mpg
- Combined mileage: 19 mpg
- Fuel tank capacity: 17.7 gallons
- Emissions: Meets ULEV standards
- Engine start-stop system: Not available
Engine Design
This section delves into the design and construction of the 3.8L V6 engine, including its cylinder configuration, materials, and cooling system.
Engine Design
This section delves into the design and construction of the 3.8L V6 engine, including its cylinder configuration, materials, and cooling system.
Cylinder Configuration
- Engine type: Naturally aspirated V6
- Displacement: 3.8 liters (3828 cc)
- Cylinder arrangement: 60-degree V6
- Bore x stroke: 95.5 mm x 89.0 mm
- Valvetrain: DOHC, 24 valves
- Block material: Aluminum alloy
Cooling System
- Coolant capacity: 8.5 quarts
- Radiator type: Aluminum core
- Thermostat opening temperature: 180°F
- Cooling fan: Electric
- Water pump: Belt-driven
- Coolant type: Ethylene glycol-based
Maintenance and Reliability
This section provides information on the maintenance schedule, common issues, and reliability of the 3.8L V6 engine. It also includes tips for prolonging engine life.
Maintenance and Reliability
This section provides information on the maintenance schedule, common issues, and reliability of the 3.8L V6 engine. It also includes tips for prolonging engine life.
Maintenance Schedule
- Oil change interval: Every 7,500 miles
- Oil capacity: 5.2 quarts
- Oil type: 5W-30 synthetic recommended
- Spark plug replacement: Every 60,000 miles
- Timing belt: Not applicable (chain-driven)
- Air filter replacement: Every 30,000 miles
Common Issues
- Oil leaks from valve cover gaskets
- Throttle body failure in some models
- Occasional timing chain tensioner issues
- High oil consumption in older engines
- Check engine light due to O2 sensor failure
- Coolant leaks from water pump
Search Specifications
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Engine Specifications
Overview
- Type
- Gasoline, naturally aspirated
- Configuration
- 60-degree V6
- Displacement
- 3.8 liters
- Valvetrain
- DOHC, 24 valves
- Fuel System
- Multi-port fuel injection
- Location
- Front, transverse
Dimensions
- Length
- 24.8 inches (630 mm)
- Width
- 28.3 inches (720 mm)
- Height
- 22.0 inches (559 mm)
- Weight
- 363 lbs (165 kg)
- Bore
- 3.74 inches (95 mm)
- Stroke
- 3.46 inches (88 mm)
- Cylinder Spacing
- 4.13 inches (105 mm)
Materials
- Block
- Cast aluminum
- Cylinder Heads
- Cast aluminum
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Performance
-
- 263 horsepower @ 5750 rpm
- 260 lb-ft torque @ 4500 rpm
- Redline at 6500 rpm
- Efficiency
-
- Variable valve timing
- Optimized combustion chambers
- Low friction internals
- Cooling
-
- High-capacity water pump
- Dual thermostats
- Efficient radiator design
- Ignition
-
- Coil-on-plug ignition
- High energy spark plugs
- Electronic timing control
- Emissions
-
- Catalytic converter
- EGR system
- EVAP control
Safety Features
- Engine Protection
-
- Oil pressure sensor
- Coolant temperature sensor
- Knock sensor
- Fuel Safety
-
- Fuel cut-off in crash
- Leak detection system
- Fire Prevention
-
- Heat shields
- Insulated fuel lines
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Balanced rotating assembly
- Hydraulic engine mounts
- Vibration Control
-
- Dual-mass flywheel
- Counter-rotating balancer shafts
- Climate Control
-
- Integrated heater core
- A/C compressor efficiency
Accessories
- Belts
-
- Serpentine belt
- Timing belt
- A/C compressor belt
- Filters
-
- Oil filter
- Air filter
- Fuel filter
- Sensors
-
- O2 sensor
- MAF sensor
- Crankshaft position sensor
Maintenance
- Oil Change interval
- 5000 miles or 6 months
- Spark Plug interval
- 60000 miles
- Timing Belt Interval
- 105000 miles
- Coolant Flush interval
- 30000 miles or 2 years
- Air Filter interval
- 15000 miles
- Fuel Filter interval
- 30000 miles
Warranty
- Basic
- Miles: 36000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60000Years: 5Coverage: Engine and transmission
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Perforation only
- Emissions
- Miles: 80000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- Mitsubishi Motors
- Manufacturing Process
-
- Precision casting
- CNC machining
- Automated assembly
- Quality Control
- Testing: Cold start testing, Dyno performance testing, Leak testinginspection: Dimensional checks, Material verification, Surface finish inspection
- Sustainability
- Recycled Materials: Up to 30% in engine componentsWaste Reduction: Closed-loop manufacturingEnergy Efficiency: Low energy production processes
- Production Metrics
- Units Per Day: 500Defect Rate: <0.1%Lead Time: 3 days
Service Information for 3.8l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect belts and hoses
- Check fluid levels
- Inspect air filter
- Check for leaks
Use only recommended oil grade and filter type
- Rotate tires
- Inspect brake system
- Check spark plugs
- Inspect fuel system
- Test battery
Include comprehensive safety inspection
- Replace spark plugs
- Replace timing belt
- Flush coolant system
- Inspect valve clearance
- Test compression
Critical to replace timing belt at recommended interval to prevent engine damage
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.8L V6 engine compatible with other Mitsubishi models?
Is the 3.8L V6 engine compatible with other Mitsubishi models?
The 3.8L V6 engine found in the 2006-2012 Mitsubishi Eclipse is specifically designed for this model. While it shares some components with other Mitsubishi engines, direct compatibility with other models is limited. Always consult the vehicle's service manual or a professional mechanic to verify compatibility before attempting any engine swaps or modifications.
Q2 What are the maintenance requirements for the 3.8L V6 engine?
What are the maintenance requirements for the 3.8L V6 engine?
Regular maintenance is crucial for the longevity of the 3.8L V6 engine. Follow a schedule that includes oil changes every 3,000-5,000 miles, air filter replacements every 15,000 miles, and spark plug replacements every 30,000 miles. Additionally, inspect the timing belt every 60,000 miles and replace it if necessary. Regular coolant flushes and fuel system cleanings are also recommended to maintain optimal performance.
Q3 How do I replace the 3.8L V6 engine in my Mitsubishi Eclipse?
How do I replace the 3.8L V6 engine in my Mitsubishi Eclipse?
Replacing the 3.8L V6 engine involves several steps. First, disconnect the battery and drain all fluids. Remove the intake manifold, exhaust components, and accessories like the alternator and power steering pump. Disconnect the engine mounts and wiring harnesses. Use an engine hoist to lift the engine out of the vehicle. Install the new engine by reversing the steps, ensuring all connections are secure and fluids are replenished. Always refer to the service manual for detailed instructions.
Q4 What should I do if my 3.8L V6 engine is misfiring?
What should I do if my 3.8L V6 engine is misfiring?
Misfiring in the 3.8L V6 engine can be caused by several issues, including faulty spark plugs, ignition coils, or fuel injectors. Start by checking the spark plugs and replacing them if necessary. Inspect the ignition coils and replace any that are damaged. Clean or replace clogged fuel injectors. If the issue persists, check the engine's compression and inspect the timing belt for proper alignment. A diagnostic scan tool can help identify specific error codes.
Q5 How can I optimize the performance of my 3.8L V6 engine?
How can I optimize the performance of my 3.8L V6 engine?
To optimize the performance of the 3.8L V6 engine, consider upgrading the air intake and exhaust systems to improve airflow. Use high-quality synthetic oil and ensure timely oil changes. Install performance spark plugs and ignition coils for better combustion. Regularly clean the throttle body and fuel injectors. Additionally, a professional ECU tune can enhance engine performance by optimizing fuel and ignition timing.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Mitsubishi Eclipse 3.8L V6 Service Manual
Coming SoonThis comprehensive service manual provides detailed instructions for maintenance, repair, and troubleshooting of the 3.8L V6 engine in the 2006-2012 Mitsubishi Eclipse.
Technical Service Bulletin for 3.8L V6 Engine
Coming SoonThis bulletin addresses common issues and updates for the 3.8L V6 engine, including recommended fixes and preventive measures.
Mitsubishi Eclipse Parts and Accessories Catalog
Coming SoonThis catalog lists all available parts and accessories for the 2006-2012 Mitsubishi Eclipse, including engine components, performance upgrades, and replacement parts.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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