Dodge Durango 1998-2003 3.9L Engine Specifications
Explore the detailed 3.9L engine specifications for the 1998-2003 Dodge Durango. This guide covers horsepower, torque, fuel system, and more, ideal for repairs, maintenance, and upgrades.
Overview Specifications
This document provides comprehensive information about the 3.9L V6 engine used in the 1998-2003 Dodge Durango. It includes detailed specifications, maintenance tips, performance characteristics, and troubleshooting guidance. Whether you're a mechanic, enthusiast, or owner, this guide will help you understand and maintain your Durango's engine. Use the search and navigation features to quickly find the information you need.
How to Use
Use the search bar to quickly locate specific terms or phrases within the document. Enter keywords like 'torque', 'horsepower', or 'maintenance' to find relevant sections.
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Key Specifications
Displacement
3.9L
Horsepower
175 hp
Torque
225 lb-ft
Compression Ratio
9.1:1
Fuel System
MPFI
Available Specifications
Engine Specifications
This section covers the technical specifications of the 3.9L V6 engine, including displacement, bore and stroke, compression ratio, and more. It also includes details on the engine's design and construction.
Engine Specifications
This section covers the technical specifications of the 3.9L V6 engine, including displacement, bore and stroke, compression ratio, and more. It also includes details on the engine's design and construction.
General Specifications
- Engine Type: V6
- Displacement: 3.9 liters (239 cubic inches)
- Bore x Stroke: 3.91 in x 3.31 in
- Compression Ratio: 9.1:1
- Engine Block Material: Cast Iron
- Cylinder Head Material: Aluminum
Performance Specifications
- Horsepower: 175 hp @ 4,800 rpm
- Torque: 225 lb-ft @ 3,200 rpm
- Fuel System: Sequential Multi-Port Fuel Injection
- Fuel Type: Regular Unleaded
- Oil Capacity: 5 quarts (with filter)
Maintenance and Care
Learn how to properly maintain your 3.9L V6 engine to ensure longevity and optimal performance. This section includes recommended service intervals, fluid types, and common maintenance tasks.
Maintenance and Care
Learn how to properly maintain your 3.9L V6 engine to ensure longevity and optimal performance. This section includes recommended service intervals, fluid types, and common maintenance tasks.
Recommended Service Intervals
- Oil Change: Every 3,000 miles or 3 months
- Air Filter Replacement: Every 15,000 miles
- Spark Plug Replacement: Every 30,000 miles
- Coolant Flush: Every 60,000 miles
- Timing Belt Inspection: Every 60,000 miles
Fluid Specifications
- Engine Oil: SAE 5W-30
- Coolant: Ethylene Glycol-Based
- Transmission Fluid: ATF+4
- Power Steering Fluid: Mopar Power Steering Fluid
- Brake Fluid: DOT 3
Troubleshooting
This section provides guidance on diagnosing and addressing common issues with the 3.9L V6 engine. It includes symptoms, possible causes, and recommended solutions.
Troubleshooting
This section provides guidance on diagnosing and addressing common issues with the 3.9L V6 engine. It includes symptoms, possible causes, and recommended solutions.
Common Issues
- Engine Misfire: Check spark plugs and ignition coils
- Oil Leaks: Inspect gaskets and seals
- Overheating: Check coolant levels and radiator
- Poor Fuel Economy: Inspect air filter and fuel injectors
- Rough Idle: Clean throttle body and check vacuum lines
Diagnostic Tips
- Use OBD-II Scanner for Error Codes
- Check for Vacuum Leaks with a Smoke Machine
- Inspect Fuel Pressure with a Gauge
- Perform Compression Test on Cylinders
- Listen for Unusual Noises with a Stethoscope
Search Specifications
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Engine Specifications
Overview
- Type
- V6
- Configuration
- 60-degree V6
- Platform
- Chrysler LA engine
- Material
- Cast iron block, aluminum heads
- Location
- Front longitudinal
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 26.7 inches (678 mm)
- Height
- 27.3 inches (693 mm)
- Weight
- 450 lbs (204 kg)
- Displacement
- 239 cubic inches (3.9 liters)
- Bore
- 3.91 inches (99.3 mm)
- Stroke
- 3.31 inches (84 mm)
Materials
- Block
- Cast iron
- Cylinder Heads
- Aluminum
- Pistons
- Aluminum alloy
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Fuel System
-
- Multi-point fuel injection
- Sequential fuel injection
- Electronic throttle control
- Ignition System
-
- Distributorless ignition
- Coil-on-plug design
- Electronic spark advance
- Cooling System
-
- Liquid-cooled
- High-capacity radiator
- Electric cooling fan
- Emissions
-
- EGR system
- Catalytic converter
- OBD-II compliance
- Performance
-
- 175 hp @ 4800 rpm
- 225 lb-ft @ 3200 rpm
- Compression ratio: 9.1:1
Safety Features
- Engine Protection
-
- Low oil pressure shutdown
- Overheat protection
- Emissions Control
-
- Catalytic converter
- Evaporative emissions system
- Electrical Safety
-
- Fused circuits
- Ground fault protection
Comfort Features
- Noise Reduction
-
- Hydraulic engine mounts
- Acoustic engine cover
- Vibration Control
-
- Balanced crankshaft
- Dual-mass flywheel
- Climate Control
-
- Heater core integration
- A/C compressor compatibility
Accessories
- Engine Bay
-
- Alternator
- Power steering pump
- A/C compressor
- Cooling System
-
- Radiator
- Coolant reservoir
- Thermostat
- Exhaust System
-
- Exhaust manifold
- Catalytic converter
- Muffler
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 5W-30 synthetic oil for optimal performance.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Bumper-to-bumper
- Powertrain
- Miles: 60,000Years: 5Coverage: Engine and transmission
- Emissions
- Miles: 50,000Years: 4Coverage: Catalytic converter and sensors
- Corrosion
- Miles: 100,000Years: 7Coverage: Perforation only
Production Details
- Manufacturer
- Chrysler Corporation
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Quality Control
- inspection: 100% engine testingTolerances: Within 0.001 inches
- Sustainability Practices
-
- Recycled materials
- Low-emission manufacturing
- Production Metrics
- Units Per Year: 50,000Defect Rate: 0.5%
Service Information for 3.9l engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect spark plugs
- Check air filter
- Inspect belts and hoses
- Check coolant level
Use synthetic oil for extended intervals.
- Replace spark plugs
- Replace air filter
- Inspect timing belt
- Check fuel system
- Inspect exhaust system
Timing belt replacement recommended at 60,000 miles.
- Replace timing belt
- Flush coolant system
- Replace fuel filter
- Inspect engine mounts
- Check compression
Critical to replace timing belt to prevent engine damage.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.9L engine compatible with other Dodge models from the same era?
Is the 3.9L engine compatible with other Dodge models from the same era?
The 3.9L V6 engine used in the 1998-2003 Dodge Durango is primarily designed for this model. While it shares some components with other Dodge vehicles like the Dakota and Ram, direct compatibility is limited. Always verify part numbers and consult a service manual or dealership for cross-model compatibility before attempting any swaps or upgrades.
Q2 What are the maintenance requirements for the 3.9L engine?
What are the maintenance requirements for the 3.9L engine?
The 3.9L 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 30,000 miles. Additionally, inspect the timing belt, coolant system, and fuel injectors annually. Adhering to the manufacturer’s maintenance schedule is crucial for optimal performance.
Q3 How do I replace the 3.9L engine in a Dodge Durango?
How do I replace the 3.9L engine in a Dodge Durango?
Replacing the 3.9L engine involves several steps: disconnect the battery, drain fluids, and remove components like the radiator, exhaust system, and transmission connections. Use an engine hoist to lift the old engine out and lower the new one in. Reconnect all components, refill fluids, and test the engine. Refer to the service manual for detailed instructions and torque specifications.
Q4 What should I do if my 3.9L engine is overheating?
What should I do if my 3.9L engine is overheating?
Overheating can result from a faulty thermostat, coolant leaks, or a malfunctioning water pump. First, check coolant levels and inspect for leaks. Test the thermostat and water pump for proper operation. If the issue persists, inspect the radiator and cooling fan. Always address overheating promptly to prevent engine damage.
Q5 How can I optimize the performance of my 3.9L engine?
How can I optimize the performance of my 3.9L engine?
To optimize performance, use high-quality synthetic oil and ensure regular maintenance. Upgrade the air intake and exhaust systems for better airflow. Consider a performance chip or tuner to enhance fuel efficiency and power output. Regularly clean fuel injectors and replace worn-out components like spark plugs and ignition coils.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1998-2003 Dodge Durango Service Manual
Coming SoonComprehensive guide covering engine repair, maintenance, and troubleshooting for the 3.9L V6 engine.
Technical Service Bulletin for 3.9L Engine
Coming SoonOfficial updates and fixes for common issues related to the 3.9L engine in Dodge Durango models.
Dodge Durango Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the 1998-2003 Dodge Durango, including engine components.
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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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