Mitsubishi Mitsubishi Endeavor 2004-2011 3.8L V6 Engine Engine Specifications
Mitsubishi Mitsubishi Endeavor 2004-2011

Mitsubishi Mitsubishi Endeavor 2004-2011 3.8L V6 Engine Specifications

Explore the detailed specifications of the 3.8L V6 engine in the 2004-2011 Mitsubishi Endeavor. Learn about horsepower, torque, fuel systems, and maintenance tips for optimal performance and repairs.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 3.8L V6 engine used in the 2004-2011 Mitsubishi Endeavor. It is designed to assist enthusiasts, mechanics, and owners in understanding the engine's features, performance, and maintenance requirements. The document is organized into sections for easy navigation, with detailed subsections covering key aspects of the engine. Use the search and navigation instructions to find specific information quickly.

How to Use

Use the search functionality by entering keywords related to the 3.8L V6 engine, such as 'horsepower' or 'fuel system,' to locate relevant sections quickly. Ensure your search terms are specific for accurate results.

Navigate through the document by scrolling through the sections or using the table of contents. Each section is clearly labeled, and subsections provide detailed information for specific topics.

Key Specifications

Displacement

3.8 liters

Horsepower

225 HP

Torque

255 lb-ft

Fuel System

Multi-port injection

Compression Ratio

9.5:1

Available Specifications

Engine Performance

This section covers the performance characteristics of the 3.8L V6 engine, including horsepower, torque, and fuel efficiency. It also provides insights into the engine's power delivery and overall driving experience.

Power and Torque
  • 225 horsepower at 5,000 RPM
  • 255 lb-ft of torque at 3,750 RPM
  • Smooth power delivery across the RPM range
  • Optimized for mid-range performance
Fuel Efficiency
  • EPA-estimated 16 MPG city
  • EPA-estimated 22 MPG highway
  • Electronic throttle control for improved efficiency
  • Multi-point fuel injection system

Engine Design

This section delves into the design and construction of the 3.8L V6 engine, including its materials, layout, and key components. It highlights the engineering features that contribute to its durability and performance.

Construction
  • Aluminum cylinder heads for reduced weight
  • Cast iron engine block for durability
  • 60-degree V-angle for compact design
  • Overhead camshaft configuration
Key Components
  • Mitsubishi Innovative Valve Timing Electronic Control (MIVEC)
  • Sequential multi-port fuel injection
  • Hydraulic lash adjusters for reduced maintenance
  • Stainless steel exhaust manifold

Maintenance and Care

This section provides guidelines for maintaining the 3.8L V6 engine, including recommended service intervals, common issues, and tips for ensuring longevity.

Service Intervals
  • Oil change every 5,000 miles
  • Spark plug replacement every 30,000 miles
  • Timing belt inspection every 60,000 miles
  • Coolant flush every 100,000 miles
Common Issues
  • Oil leaks from valve cover gaskets
  • Throttle body cleaning recommended periodically
  • Check engine light due to O2 sensor issues
  • Routine inspection of ignition coils

Engine Specifications

Overview

Type
Naturally Aspirated V6
Configuration
60-degree V6
Displacement
3.8 liters (3828 cc)
Power Output
225 hp @ 5000 rpm
Torque
255 lb-ft @ 3750 rpm
Location
Front, Longitudinal

Dimensions

Length
28.5 inches (724 mm)
Width
24.3 inches (617 mm)
Height
27.6 inches (701 mm)
Weight
385 lbs (175 kg)
Bore
3.74 inches (95 mm)
Stroke
3.70 inches (94 mm)
Compression Ratio
9.5:1
Oil Capacity
5.5 quarts (5.2 liters)

Materials

Block
Cast Iron
Cylinder Head
Aluminum
Pistons
Aluminum Alloy
Crankshaft
Forged Steel
Valves
Stainless Steel

Features

Fuel System
  • Sequential Multi-Port Fuel Injection
  • Electronic Throttle Control
  • Variable Intake Manifold
Ignition System
  • Distributorless Ignition System
  • Direct Fire Ignition
  • Individual Coil per Cylinder
Cooling System
  • Liquid Cooling
  • Electric Radiator Fan
  • Thermostatic Control
Emissions
  • EGR System
  • Catalytic Converter
  • OBD-II Compliance
Lubrication
  • Full-Pressure Lubrication
  • Oil Cooler
  • Replaceable Oil Filter

Safety Features

Engine Protection
  • Low Oil Pressure Warning
  • Overheat Warning
  • Fail-Safe Cooling Mode
Emission Control
  • Evaporative Emission Control
  • Positive Crankcase Ventilation
  • Air Injection System

Comfort Features

Noise Reduction
  • Hydraulic Engine Mounts
  • Acoustic Engine Cover
  • Balanced Crankshaft
Performance
  • Smooth Power Delivery
  • Wide Torque Band
  • Responsive Throttle

Accessories

intake System
  • High-Flow Air Filter
  • Resonator Chamber
  • Mass Air Flow Sensor
Exhaust System
  • Dual Exhaust
  • Stainless Steel Muffler
  • Oxygen Sensors
Electrical
  • Alternator
  • Starter Motor
  • Battery

Maintenance

Service interval
Every 7,500 miles or 6 months
Service Items
  • Oil and Filter Change
  • Air Filter Replacement
  • Spark Plug Inspection
  • Coolant Flush
  • Drive Belt Check
Maintenance Notes
Use synthetic oil for optimal performance. Check engine codes regularly.

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Bumper-to-Bumper
Powertrain Warranty
Miles: 60,000
Years: 5
Coverage: Engine and Transmission
Emissions Warranty
Miles: 80,000
Years: 8
Coverage: Catalytic Converter and ECU
Warranty Terms
Transferable to new owner. Excludes wear and tear items.

Production Details

Manufacturer
Mitsubishi Motors
Manufacturing Process
  • Casting
  • Machining
  • Assembly
  • Testing
Quality Control
inspection Stages: 5
Testing: Dyno Testing, Leak Testing, Vibration Analysis
Sustainability Practices
  • Recycled Materials
  • Energy-Efficient Manufacturing
  • Low-Emission Production
Production Metrics
Annual Units: 150,000
Defect Rate: 0.1%
Production Time: 8 hours per engine

Service Information for 3.8l v6 engine Service

Maintenance and service requirements specific to this component

7,500
6
  • Change Engine Oil and Filter
  • Inspect Air Filter
  • Check Spark Plugs
  • Inspect Drive Belts
  • Check Coolant Level

Use synthetic oil for extended intervals.

15,000
12
  • Replace Air Filter
  • Inspect Fuel System
  • Check Ignition System
  • Inspect Exhaust System
  • Test Battery

Perform a full diagnostic scan.

60,000
48
  • Replace Spark Plugs
  • Flush Cooling System
  • Replace Timing Belt
  • Inspect Engine Mounts
  • Check Compression

Critical to replace timing belt to avoid engine damage.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 3.8L V6 engine compatible with other Mitsubishi models?

The 3.8L V6 engine used in the 2004-2011 Mitsubishi Endeavor is specifically designed for this model and is not directly compatible with other Mitsubishi vehicles. It features a unique configuration, including a SOHC 24-valve design, and is optimized for the Endeavor's chassis and drivetrain. Always verify compatibility with a certified mechanic before attempting any cross-model installations.

Q2

What are the maintenance requirements for the 3.8L V6 engine?

The 3.8L V6 engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 60,000 miles. Additionally, coolant should be flushed every 30,000 miles, and timing belts must be inspected and replaced every 90,000 miles to prevent engine damage.

Q3

How do I install or replace the 3.8L V6 engine in a Mitsubishi Endeavor?

Replacing the 3.8L V6 engine involves several steps. First, disconnect the battery and drain fluids. Remove the engine mounts, exhaust system, and wiring harness. Use a hoist to lift the engine out. Install the new engine by reversing the process, ensuring all connections are secure. Torque bolts to specifications and refill fluids. Consult the service manual for detailed instructions.

Q4

What are common troubleshooting steps for the 3.8L V6 engine?

Common issues with the 3.8L V6 engine include rough idling, reduced power, and oil leaks. Start by checking for error codes using an OBD-II scanner. Inspect spark plugs, ignition coils, and fuel injectors for wear. Verify oil levels and look for leaks around gaskets. If the engine overheats, check the cooling system for blockages or leaks. Consult a mechanic for persistent issues.

Q5

How can I optimize the performance of the 3.8L V6 engine?

To optimize the 3.8L V6 engine, use high-quality synthetic oil and ensure timely maintenance. Upgrade to a high-flow air filter and consider a performance exhaust system for better airflow. Regularly clean fuel injectors and use premium fuel to improve combustion. Properly inflate tires and reduce vehicle weight to enhance overall efficiency and performance.

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 Endeavor 3.8L V6 Service Manual

Coming Soon

This manual provides detailed instructions for maintenance, repair, and troubleshooting of the 3.8L V6 engine.

Technical Service Bulletin for 3.8L V6 Engine

Coming Soon

This bulletin addresses common issues and updates for the 3.8L V6 engine in the 2004-2011 Mitsubishi Endeavor.

3.8L V6 Engine Parts and Accessories Catalog

Coming Soon

This catalog lists compatible parts and accessories for the 3.8L V6 engine, including OEM and aftermarket options.

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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.
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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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