Dodge Intrepid 1998-2004 3.5L Engine Specifications
Explore detailed 3.5L engine specifications for the 1998-2004 Dodge Intrepid. Learn about horsepower, torque, fuel system, and more for maintenance, repair, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the 3.5L engine used in the 1998-2004 Dodge Intrepid. It is designed to assist enthusiasts, mechanics, and owners in understanding the engine's features, performance, and maintenance requirements. Use the search and navigation instructions to quickly find relevant information. The document is divided into sections covering engine design, performance, maintenance, and key specifications.
How to Use
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Key Specifications
Displacement
3.5L
Horsepower
253 HP
Torque
255 lb-ft
Fuel Efficiency
18/27 MPG
Compression Ratio
9.6:1
Available Specifications
Engine Design
This section covers the design and architecture of the 3.5L engine, including its configuration, materials, and key components. Learn about the engine's construction and how it contributes to performance and durability.
Engine Design
This section covers the design and architecture of the 3.5L engine, including its configuration, materials, and key components. Learn about the engine's construction and how it contributes to performance and durability.
Engine Configuration
- V6 configuration with 60-degree bank angle
- Dual overhead camshafts (DOHC)
- 24-valve setup for improved airflow
- Aluminum cylinder heads for reduced weight
- Cast iron engine block for durability
- Sequential multi-port fuel injection system
Materials and Construction
- Aluminum alloy used for cylinder heads and intake manifold
- Forged steel crankshaft for strength
- Hypereutectic pistons for reduced friction
- Plastic composite intake manifold for weight savings
- Stainless steel exhaust manifolds for heat resistance
- Timing chain for reliability and reduced maintenance
Performance
This section details the performance characteristics of the 3.5L engine, including horsepower, torque, and fuel efficiency. Understand how the engine delivers power and its impact on driving dynamics.
Performance
This section details the performance characteristics of the 3.5L engine, including horsepower, torque, and fuel efficiency. Understand how the engine delivers power and its impact on driving dynamics.
Power Output
- 253 horsepower at 6,400 RPM
- 255 lb-ft of torque at 3,950 RPM
- Redline at 6,500 RPM
- Electronic throttle control for precise power delivery
- Variable intake manifold for optimized performance
- High-flow exhaust system for improved efficiency
Fuel Efficiency
- EPA-estimated 18 MPG city and 27 MPG highway
- Integrated engine management system for optimal fuel delivery
- Low-friction components for improved efficiency
- Emission control system compliant with federal standards
- Oxygen sensors for precise air-fuel ratio control
- Lightweight design contributing to better fuel economy
Maintenance
This section provides guidance on maintaining the 3.5L engine, including recommended service intervals, common issues, and troubleshooting tips. Keep your engine running smoothly with proper care.
Maintenance
This section provides guidance on maintaining the 3.5L engine, including recommended service intervals, common issues, and troubleshooting tips. Keep your engine running smoothly with proper care.
Service Intervals
- Oil change every 3,000-5,000 miles
- Spark plug replacement every 30,000 miles
- Timing chain inspection every 60,000 miles
- Coolant flush every 50,000 miles
- Air filter replacement every 15,000 miles
- Fuel system cleaning every 25,000 miles
Common Issues
- Intake manifold gasket leaks
- Throttle body sensor failures
- Oil sludge buildup in older models
- Timing chain tensioner wear
- Coolant leaks from water pump
- Ignition coil failures
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Engine Specifications
Overview
- Type
- V6
- Configuration
- 60-degree V
- Displacement
- 3.5 liters (214 cubic inches)
- Aspiration
- Naturally aspirated
- Fuel System
- Sequential multi-port fuel injection
- Location
- Front longitudinal
Dimensions
- Length
- 24.5 inches (622 mm)
- Width
- 28.3 inches (719 mm)
- Height
- 27.6 inches (701 mm)
- Weight
- 375 lbs (170 kg)
- Bore
- 3.66 inches (93 mm)
- Stroke
- 3.31 inches (84 mm)
- Compression Ratio
- 9.6:1
- Oil Capacity
- 6 quarts (5.7 liters)
Materials
- Block
- Cast aluminum
- Cylinder Heads
- Aluminum alloy
- Pistons
- Forged aluminum
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Ignition System
-
- Distributorless ignition system (DIS)
- Coil-on-plug design
- Electronic spark advance
- Cooling System
-
- Cross-flow aluminum radiator
- Electric cooling fan
- Thermostatically controlled
- Fuel System
-
- Returnless fuel system
- High-pressure fuel pump
- 32-bit engine control module (ECM)
- Valvetrain
-
- Dual overhead camshafts (DOHC)
- 4 valves per cylinder
- Hydraulic lash adjusters
- Exhaust System
-
- Stainless steel exhaust manifold
- Dual exhaust outlets
- Catalytic converters
Safety Features
- Engine Protection
-
- Knock sensor for detonation prevention
- Low oil pressure warning system
- Emissions Control
-
- OBD-II compliant
- EGR (Exhaust Gas Recirculation) system
- Overheat Protection
-
- High-temperature coolant sensor
- Automatic engine shutdown in extreme conditions
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Hydraulic engine mounts
- Vibration Control
-
- Balanced crankshaft
- Dual-mass flywheel
- Climate Control
-
- Integrated heater core
- A/C compressor compatibility
Accessories
- Belts And Pulleys
-
- Serpentine belt
- Tensioner pulley
- Idler pulley
- Sensors
-
- Crankshaft position sensor
- Camshaft position sensor
- Throttle position sensor
- Filters
-
- Oil filter
- Air filter
- Fuel filter
Maintenance
- Service interval
- Every 7,500 miles or 6 months
- Service Items
-
- Oil and filter change
- Spark plug replacement
- Air filter inspection
- Coolant flush
- Timing belt inspection
- Maintenance Notes
- Use synthetic 5W-30 oil for optimal performance. Timing belt replacement recommended at 100,000 miles.
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain Warranty
- Miles: 60,000Years: 5Coverage: Engine and transmission
- Emissions Warranty
- Miles: 50,000Years: 4Coverage: Catalytic converter and sensors
- Corrosion Warranty
- Miles: 100,000Years: 7Coverage: Perforation from rust
Production Details
- Manufacturer
- DaimlerChrysler
- Manufacturing Process
-
- Casting for engine block and heads
- CNC machining for precision components
- Robotic assembly
- Quality Control
- inspection: 100% engine testingTolerances: Micron-level precision
- Sustainability Practices
-
- Recycled aluminum usage
- Low-emission manufacturing
- Production Metrics
- Units Produced: Approximately 500,000Production Years: 1998-2004
Service Information for 3.5l engine Service
Maintenance and service requirements specific to the 3.5L V6 engine
- Oil and filter change
- Inspect air filter
- Check coolant level
- Inspect belts and hoses
- Test battery and charging system
Use only synthetic 5W-30 oil for optimal performance.
- Replace spark plugs
- Inspect ignition system
- Check fuel system pressure
- Inspect exhaust system
- Test engine compression
Ensure proper torque specifications for spark plugs.
- Replace timing belt
- Replace water pump
- Flush cooling system
- Inspect and replace engine mounts if necessary
- Perform complete engine diagnostic
Timing belt replacement is critical to prevent engine damage.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.5L engine compatible with other Dodge models from 1998-2004?
Is the 3.5L engine compatible with other Dodge models from 1998-2004?
The 3.5L V6 engine used in the 1998-2004 Dodge Intrepid is specifically designed for this model and may not be directly compatible with other Dodge vehicles without modifications. It features a 3.5L displacement, 24-valve SOHC design, and produces approximately 253 hp. Always verify compatibility with your vehicle's VIN and consult a professional before attempting cross-model installations.
Q2 What are the maintenance requirements for the 3.5L engine?
What are the maintenance requirements for the 3.5L engine?
The 3.5L engine requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 3,000-5,000 miles, timing belt replacement every 60,000-100,000 miles, and spark plug replacement every 30,000 miles. Regularly inspect the cooling system, belts, and hoses for wear. Use high-quality synthetic oil and OEM-recommended parts to maintain engine longevity.
Q3 How do I replace the 3.5L engine in a Dodge Intrepid?
How do I replace the 3.5L engine in a Dodge Intrepid?
Replacing the 3.5L engine involves several steps: disconnect the battery, drain fluids, and remove the engine mounts, wiring, and hoses. Use an engine hoist to lift the old engine out and lower the new one into place. Reconnect all components, refill fluids, and test the engine. Refer to the service manual for detailed instructions and torque specifications.
Q4 What are common troubleshooting steps for the 3.5L engine?
What are common troubleshooting steps for the 3.5L engine?
Common issues include overheating, rough idling, and loss of power. Check the coolant system for leaks, inspect the thermostat, and ensure the radiator is functioning. For rough idling, examine spark plugs, ignition coils, and fuel injectors. Use an OBD-II scanner to diagnose error codes and address specific problems. Regular maintenance can prevent many of these issues.
Q5 How can I optimize the performance of the 3.5L engine?
How can I optimize the performance of the 3.5L engine?
To optimize performance, use high-quality synthetic oil and premium fuel. Upgrade the air intake and exhaust systems for better airflow. Regularly clean the throttle body and fuel injectors. Consider a performance tune to adjust the engine's ECU settings. Ensure all maintenance tasks are completed on time to keep the engine running efficiently.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1998-2004 Dodge Intrepid Service Manual
Coming SoonComprehensive guide covering engine repair, maintenance, and troubleshooting for the 3.5L engine.
Technical Service Bulletin for 3.5L Engine
Coming SoonLatest updates and fixes for common issues related to the 3.5L engine in Dodge Intrepid models.
Dodge Intrepid Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the 1998-2004 Dodge Intrepid, including the 3.5L engine.
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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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