Mitsubishi Mitsubishi Diamante 1995-2005 3.5L V6 Engine Specifications
Explore the detailed 3.5L V6 engine specifications for the 1995-2005 Mitsubishi Diamante. Learn about horsepower, torque, fuel system, and more for maintenance, repair, and upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 3.5L V6 engine used in the Mitsubishi Diamante from 1995 to 2005. It is designed to assist enthusiasts, mechanics, and researchers in understanding the engine's features, performance, and maintenance requirements. The document is organized into sections for easy navigation, and a quick reference guide is included for key specifications.
How to Use
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Key Specifications
Displacement
3.5L
Horsepower
210 hp
Torque
231 lb-ft
Fuel Economy
18/24 mpg
Compression Ratio
10.0:1
Available Specifications
Engine Performance
This section covers the performance characteristics of the 3.5L V6 engine, including horsepower, torque, and acceleration metrics. It also highlights the engine's efficiency and responsiveness in various driving conditions.
Engine Performance
This section covers the performance characteristics of the 3.5L V6 engine, including horsepower, torque, and acceleration metrics. It also highlights the engine's efficiency and responsiveness in various driving conditions.
Power and Torque
- Horsepower: 210 hp @ 5000 rpm
- Torque: 231 lb-ft @ 4000 rpm
- Redline: 6500 rpm
- Compression ratio: 10.0:1
- Fuel delivery: Multi-point fuel injection
- Engine type: Naturally aspirated
Acceleration and Efficiency
- 0-60 mph: 7.8 seconds
- Top speed: 140 mph
- Fuel economy: 18 mpg city / 24 mpg highway
- CO2 emissions: 320 g/km
- Transmission: 4-speed automatic
- Drive type: Front-wheel drive
Engine Design
This section delves into the design and construction of the 3.5L V6 engine, including its cylinder configuration, materials, and cooling system. It also highlights innovations that contribute to its durability and performance.
Engine Design
This section delves into the design and construction of the 3.5L V6 engine, including its cylinder configuration, materials, and cooling system. It also highlights innovations that contribute to its durability and performance.
Cylinder Configuration
- Cylinders: 6
- Displacement: 3497 cc
- Bore x Stroke: 93.0 mm x 85.8 mm
- Valvetrain: SOHC, 4 valves per cylinder
- Block material: Aluminum
- Head material: Aluminum
Cooling and Lubrication
- Cooling system: Liquid-cooled
- Oil capacity: 5.0 quarts
- Oil type: 5W-30 synthetic
- Coolant capacity: 9.5 quarts
- Oil change interval: 7500 miles
- Thermostat opening temperature: 180°F
Maintenance and Durability
This section provides guidance on maintaining the 3.5L V6 engine, including recommended service intervals, common issues, and tips for extending its lifespan. It also covers warranty and reliability information.
Maintenance and Durability
This section provides guidance on maintaining the 3.5L V6 engine, including recommended service intervals, common issues, and tips for extending its lifespan. It also covers warranty and reliability information.
Service Intervals
- Spark plugs: Replace every 30,000 miles
- Timing belt: Replace every 60,000 miles
- Air filter: Replace every 15,000 miles
- Fuel filter: Replace every 30,000 miles
- Coolant flush: Every 60,000 miles
- Transmission fluid: Every 30,000 miles
Common Issues
- Oil leaks from valve cover gaskets
- Timing belt tensioner failure
- Ignition coil degradation
- Throttle body carbon buildup
- Coolant system leaks
- Transmission shift solenoid issues
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Engine Specifications
Overview
- Type
- Naturally Aspirated V6
- Configuration
- 60-degree V6
- Platform
- Mitsubishi 6G7 Series
- Material
- Aluminum Block and Heads
- Location
- Front Longitudinal
Dimensions
- Length
- 25.6 in (650 mm)
- Width
- 22.8 in (580 mm)
- Height
- 23.6 in (600 mm)
- Displacement
- 3.5 liters (3497 cc)
- Bore
- 3.74 in (95 mm)
- Stroke
- 3.15 in (80 mm)
- Weight
- 385 lbs (175 kg)
Materials
- Engine Block
- Aluminum Alloy
- Cylinder Heads
- Aluminum Alloy
- Pistons
- Aluminum with Molybdenum Coating
- Crankshaft
- Forged Steel
- Valves
- Stainless Steel
Features
- Performance
-
- DOHC (Double Overhead Camshaft)
- 24-Valve Configuration
- Variable Valve Timing
- Multi-Point Fuel Injection
- Cooling
-
- Liquid-Cooled System
- High-Capacity Radiator
- Electric Cooling Fan
- Ignition
-
- Distributorless Ignition System
- High-Energy Spark Plugs
- Electronic Ignition Control
- Exhaust
-
- Dual Exhaust System
- Stainless Steel Exhaust Manifold
- Catalytic Converter
- Lubrication
-
- Full-Pressure Lubrication System
- Oil Cooler
- High-Capacity Oil Pump
Safety Features
- Engine Protection
-
- Low Oil Pressure Warning
- Overheating Alert
- Engine Immobilizer
- Emissions
-
- OBD-II Compliance
- EGR (Exhaust Gas Recirculation)
- Evaporative Emission Control
- Structural
-
- Reinforced Engine Mounts
- Impact-Resistant Crankcase
Comfort Features
- Noise Reduction
-
- Acoustic Engine Cover
- Balanced Crankshaft
- Hydraulic Valve Lifters
- Vibration Control
-
- Counter-Rotating Balance Shafts
- Rubber-Isolated Engine Mounts
- Driveability
-
- Smooth Power Delivery
- Linear Throttle Response
- Adaptive Engine Mapping
Accessories
- Electrical
-
- High-Output Alternator
- Maintenance-Free Battery
- Starter Motor
- Cooling
-
- Thermostatic Fan Clutch
- Auxiliary Cooling Fan
- Coolant Reservoir
- intake
-
- High-Flow Air Filter
- Throttle Body
- Intake Manifold
Maintenance
- Service interval
- Every 7,500 miles or 6 months
- Service Items
-
- Oil and Filter Change
- Spark Plug Replacement
- Air Filter Replacement
- Coolant Flush
- Timing Belt Inspection
- Maintenance Notes
- Use 5W-30 Synthetic Oil, Replace Timing Belt Every 60,000 miles
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-Bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Engine and Transmission
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Perforation Only
- Roadside Assistance
- Miles: UnlimitedYears: 3Coverage: 24/7 Towing and Assistance
Production Details
- Manufacturer
- Mitsubishi Motors
- Manufacturing Process
-
- Casting for Engine Block
- CNC Machining for Cylinder Heads
- Assembly Line Integration
- Quality Control
- Testing: Dyno Testing, Leak Testing, Cold Start Testinginspection: Visual Inspection, Dimensional Check, Final Quality Audit
- Sustainability
-
- Recycled Aluminum Usage
- Low-Emission Manufacturing
- Waste Reduction Programs
- Production Metrics
- Units Per Year: 50,000Assembly Time: 4.5 hoursDefect Rate: 0.1%
Service Information for 3.5l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and Filter Change
- Inspect Air Filter
- Check Coolant Level
- Inspect Belts and Hoses
- Check Spark Plugs
Use Synthetic 5W-30 Oil for optimal performance
- Replace Air Filter
- Replace Spark Plugs
- Inspect Timing Belt
- Check Fuel System
- Inspect Exhaust System
Timing Belt replacement recommended at 60,000 miles
- Replace Timing Belt
- Replace Coolant
- Inspect Water Pump
- Check Engine Mounts
- Perform Compression Test
Critical to replace Timing Belt to prevent engine damage
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.5L V6 engine compatible with other Mitsubishi models?
Is the 3.5L V6 engine compatible with other Mitsubishi models?
The 3.5L V6 engine used in the 1995-2005 Mitsubishi Diamante is specifically designed for this model. While it shares some components with other Mitsubishi engines, direct compatibility with other models is limited. Always verify part numbers and consult a professional before attempting cross-model installations.
Q2 What are the maintenance requirements for the 3.5L V6 engine?
What are the maintenance requirements for the 3.5L V6 engine?
Regular maintenance for the 3.5L V6 engine includes oil changes every 3,000-5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 30,000 miles. Ensure coolant and timing belt inspections are performed every 60,000 miles to prevent engine damage and maintain optimal performance.
Q3 How do I replace the 3.5L V6 engine in a Mitsubishi Diamante?
How do I replace the 3.5L V6 engine in a Mitsubishi Diamante?
Replacing the 3.5L V6 engine involves draining fluids, disconnecting the battery, removing engine mounts, and detaching wiring and hoses. Use a hoist to lift the engine out. Installation is the reverse process, ensuring all connections are secure. Refer to the service manual for detailed instructions and torque specifications.
Q4 What are common troubleshooting steps for the 3.5L V6 engine?
What are common troubleshooting steps for the 3.5L V6 engine?
If the engine misfires or lacks power, check spark plugs, ignition coils, and fuel injectors. For overheating, inspect the coolant system and thermostat. Unusual noises may indicate timing belt or pulley issues. Use an OBD-II scanner to diagnose error codes and address specific problems accordingly.
Q5 How can I optimize the performance of the 3.5L V6 engine?
How can I optimize the performance of the 3.5L V6 engine?
Optimize performance by using high-quality synthetic oil, upgrading the air intake system, and ensuring proper fuel system maintenance. Regular tuning and using premium fuel can enhance efficiency. Consider professional ECU remapping for improved power and throttle response.
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 Diamante 3.5L V6 Engine Service Manual
Coming SoonComprehensive guide covering engine maintenance, repair, and troubleshooting for the 1995-2005 Diamante.
Technical Service Bulletin for 3.5L V6 Engine
Coming SoonLatest updates and fixes for known issues with the 3.5L V6 engine in Mitsubishi Diamante models.
Mitsubishi Diamante Parts and Accessories Catalog
Coming SoonDetailed catalog of genuine parts and accessories compatible with the 3.5L V6 engine and Diamante models.
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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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