Infiniti I35 2002-2004 3.5L V6 Engine Specifications
Explore the detailed technical specifications of the 3.5L V6 engine for the 2002-2004 Infiniti I35. This guide covers horsepower, torque, fuel system, and more, providing essential information for maintenance, repair, and upgrades. Perfect for mechanics, enthusiasts, and owners.
Overview Specifications
This document provides detailed specifications and technical information about the 3.5L V6 engine used in the 2002-2004 Infiniti I35. It is designed to assist enthusiasts, mechanics, and owners in understanding the engine's features, performance, and maintenance requirements. The content is organized into sections for easy navigation, with subsections breaking down specific aspects of the engine. Use the search and navigation instructions to quickly find the information you need.
How to Use
Use the search functionality to locate specific terms or topics within the document. Enter keywords related to the engine's specifications, performance, or maintenance to find relevant sections quickly.
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Key Specifications
Displacement
3498 cc
Horsepower
255 hp @ 5800 rpm
Torque
246 lb-ft @ 4400 rpm
Compression Ratio
10.3:1
Fuel System
Sequential Multi-Port Injection
Available Specifications
Engine Specifications
This section covers the core specifications of the 3.5L V6 engine, including its displacement, configuration, and key technical details. It provides a comprehensive overview of the engine's design and capabilities.
Engine Specifications
This section covers the core specifications of the 3.5L V6 engine, including its displacement, configuration, and key technical details. It provides a comprehensive overview of the engine's design and capabilities.
General Specifications
- Engine Type: 3.5L V6
- Displacement: 3498 cc
- Configuration: 60-degree V6
- Cylinder Head Material: Aluminum
- Block Material: Aluminum
- Valvetrain: DOHC, 4 valves per cylinder
Performance Specifications
- Horsepower: 255 hp @ 5800 rpm
- Torque: 246 lb-ft @ 4400 rpm
- Compression Ratio: 10.3:1
- Fuel System: Sequential Multi-Port Fuel Injection
- Redline: 6500 rpm
- Emissions: LEV compliant
Performance Features
This section highlights the performance-enhancing features of the 3.5L V6 engine, including its advanced technologies and design elements that contribute to its power and efficiency.
Performance Features
This section highlights the performance-enhancing features of the 3.5L V6 engine, including its advanced technologies and design elements that contribute to its power and efficiency.
Advanced Technologies
- Variable Valve Timing (VVT)
- Nissan EGI (Electronic Gasoline Injection)
- Microfinished Crankshaft
- Lightweight Pistons
- Low-Friction Timing Chain
- High-Flow Cylinder Heads
Design Enhancements
- Optimized Intake Manifold
- High-Strength Connecting Rods
- Balanced Crankshaft
- Dual Exhaust System
- Low-Noise Timing Chain
- Thermal Management System
Maintenance and Service
This section provides essential information on maintaining and servicing the 3.5L V6 engine, including recommended intervals, fluid capacities, and common maintenance tasks.
Maintenance and Service
This section provides essential information on maintaining and servicing the 3.5L V6 engine, including recommended intervals, fluid capacities, and common maintenance tasks.
Service Intervals
- Oil Change: Every 5,000 miles or 6 months
- Spark Plugs: Every 60,000 miles
- Timing Chain: Inspect every 100,000 miles
- Air Filter: Replace every 15,000 miles
- Coolant Flush: Every 30,000 miles
- Fuel Filter: Replace every 30,000 miles
Fluid Capacities
- Engine Oil: 4.5 quarts (with filter)
- Coolant: 9.5 quarts
- Transmission Fluid: 9.8 quarts
- Power Steering Fluid: 1.1 quarts
- Brake Fluid: 0.5 quarts
- Fuel Tank Capacity: 18.5 gallons
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Engine Specifications
Overview
- Type
- V6
- Configuration
- 60-degree V
- Displacement
- 3.5 liters
- Aspiration
- Naturally aspirated
- Location
- Front longitudinal
- Platform
- Nissan VQ series
Dimensions
- Length
- 24.8 inches (630 mm)
- Width
- 28.3 inches (720 mm)
- Height
- 27.6 inches (700 mm)
- Weight
- 350 lbs (158.8 kg)
- Bore
- 3.76 inches (95.5 mm)
- Stroke
- 3.27 inches (83 mm)
- Cylinder Spacing
- 4.33 inches (110 mm)
Materials
- Block
- Aluminum alloy
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valve Springs
- High-tensile steel
Features
- Performance
-
- 255 horsepower @ 5800 rpm
- 246 lb-ft torque @ 4400 rpm
- Redline at 6500 rpm
- Fuel System
-
- Sequential multi-port fuel injection
- Electronic throttle control
- Fuel cut-off on deceleration
- Cooling
-
- Water-cooled
- Dual electric radiator fans
- High-capacity coolant reservoir
- Ignition
-
- Direct ignition system
- Individual coil-on-plug
- Platinum-tipped spark plugs
- Emissions
-
- EGR system
- Catalytic converters
- OBD-II compliant
Safety Features
- Engine Protection
-
- Knock sensor
- Overheat protection
- Oil pressure sensor
- Electronics
-
- Fail-safe cooling
- Backup power mode
- Immobilizer system
Comfort Features
- Noise Reduction
-
- Hydraulic engine mounts
- Acoustic engine cover
- Tuned intake silencer
- Vibration Control
-
- Balanced crankshaft
- Counter-rotating balance shafts
- Rubber-isolated accessories
Accessories
- Belts
-
- Serpentine belt
- Timing belt
- Accessory drive belt
- Filters
-
- Oil filter
- Air filter
- Fuel filter
- Fluids
-
- Engine oil
- Coolant
- Transmission fluid
Maintenance
- Service interval
- Every 3,750 miles or 3 months
- Service Items
-
- Oil and filter change
- Air filter inspection
- Spark plug replacement
- Coolant flush
- Timing belt inspection
- Maintenance Notes
- Use synthetic 5W-30 oil for optimal performance
Warranty
- Bumper To Bumper
- Miles: 36,000Years: 3Coverage: Comprehensive
- Powertrain
- Miles: 60,000Years: 5Coverage: Engine and transmission
- Emissions
- Miles: 80,000Years: 8Coverage: Catalytic converter and sensors
- Corrosion
- Miles: UnlimitedYears: 7Coverage: Perforation only
Production Details
- Manufacturer
- Nissan Motor Co., Ltd.
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- inspection: 100% engine testingTolerance: Within 0.001 inches
- Sustainability
-
- Recycled aluminum
- Low-emission coatings
- Energy-efficient production
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: Less than 0.1%Lead Time: 48 hours
Service Information for 3.5l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Air filter inspection
- Coolant level check
- Belts and hoses inspection
- Spark plug condition check
Use only manufacturer-recommended fluids
- Replace air filter
- Check and adjust valve clearance
- Inspect timing belt
- Test compression
- Check ignition system
Requires specialized tools for valve adjustment
- Replace timing belt
- Flush coolant system
- Replace spark plugs
- Inspect and clean fuel injectors
- Check engine mounts
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 Infiniti models from 2002-2004?
Is the 3.5L V6 engine compatible with other Infiniti models from 2002-2004?
The 3.5L V6 engine used in the 2002-2004 Infiniti I35 is primarily designed for this model. However, it shares similarities with engines in the Nissan Maxima and Infiniti G35 of the same era. Compatibility depends on factors like mounting points, ECU configurations, and transmission interfaces. Consult a professional or refer to technical manuals for specific cross-model compatibility details.
Q2 What are the maintenance requirements for the 3.5L V6 engine?
What are the maintenance requirements for the 3.5L V6 engine?
The 3.5L V6 engine requires regular maintenance to ensure longevity. Key tasks include oil changes every 3,000-5,000 miles, air filter replacement every 15,000 miles, and spark plug replacement every 60,000 miles. Additionally, inspect the timing belt every 90,000 miles and replace it if worn. Coolant should be flushed every 30,000 miles, and fuel injectors cleaned periodically. Adhering to the manufacturer’s schedule is crucial.
Q3 How do I replace the 3.5L V6 engine in my Infiniti I35?
How do I replace the 3.5L V6 engine in my Infiniti I35?
Replacing the 3.5L V6 engine involves several steps: (1) Disconnect the battery, (2) Drain fluids, (3) Remove components like the intake manifold, exhaust system, and wiring harness, (4) Unbolt the engine mounts and transmission, (5) Use an engine hoist to lift the engine out. Installation is the reverse process. Ensure proper alignment and torque specifications. Professional assistance is recommended for this complex task.
Q4 What are common troubleshooting steps for the 3.5L V6 engine?
What are common troubleshooting steps for the 3.5L V6 engine?
For engine performance issues, start by checking for error codes using an OBD-II scanner. Inspect the air intake system for blockages, test fuel pressure, and examine spark plugs and ignition coils. If the engine overheats, check the cooling system for leaks or a faulty thermostat. Unusual noises may indicate timing belt or internal engine problems. Always refer to the service manual for detailed diagnostics.
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?
To optimize performance, use high-quality synthetic oil and premium fuel. Upgrade the air intake and exhaust systems for better airflow. Install performance spark plugs and ignition coils for improved combustion. Regularly clean the throttle body and fuel injectors. Consider tuning the ECU for enhanced power and efficiency. Always balance performance upgrades with engine longevity and reliability.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Infiniti I35 Service Manual 2002-2004
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the Infiniti I35.
Technical Service Bulletin for 3.5L V6 Engine
Coming SoonOfficial bulletin addressing common issues, updates, and fixes for the 3.5L V6 engine.
Infiniti I35 Parts and Accessories Catalog
Coming SoonDetailed catalog listing genuine parts and accessories compatible with the 2002-2004 Infiniti I35.
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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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