RAM Ram Dakota 1997-2004 3.9L V6 Engine Engine Specifications
RAM Ram Dakota 1997-2004

RAM Ram Dakota 1997-2004 3.9L V6 Engine Specifications

Explore the detailed technical specifications of the 3.9L V6 engine for the 1997-2004 Ram Dakota. Learn about horsepower, torque, fuel system, and more for maintenance, repair, and performance upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 3.9L V6 engine used in the 1997-2004 Ram Dakota. 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 covering specific aspects of the engine. Use the search and navigation instructions to quickly find the information you need.

How to Use

Use the search function to locate specific terms or topics within the document. Enter keywords related to the 3.9L V6 engine, such as 'horsepower' or 'torque,' to quickly find relevant sections.

Navigate through the document using the sections and subsections listed. Each section is dedicated to a specific aspect of the engine, such as performance or maintenance. Click on the desired section to view detailed information.

Key Specifications

Horsepower

175 HP @ 4,800 RPM

Torque

225 lb-ft @ 3,200 RPM

Displacement

3.9 liters (239 cubic inches)

Compression Ratio

9.1:1

Fuel System

Multi-point fuel injection

Available Specifications

Engine Performance

This section covers the performance characteristics of the 3.9L V6 engine, including horsepower, torque, and fuel efficiency. It also includes details on the engine's design and how it contributes to the overall performance of the Ram Dakota.

Horsepower and Torque
  • Horsepower: 175 HP @ 4,800 RPM
  • Torque: 225 lb-ft @ 3,200 RPM
  • Compression ratio: 9.1:1
  • Fuel system: Multi-point fuel injection
Fuel Efficiency
  • City MPG: 15
  • Highway MPG: 20
  • Combined MPG: 17
  • Fuel type: Regular unleaded

Engine Design

This section focuses on the design and construction of the 3.9L V6 engine. It includes information on the engine block, cylinder head, and other key components that contribute to its durability and performance.

Engine Block and Cylinders
  • Engine block material: Cast iron
  • Cylinder configuration: V6
  • Bore x Stroke: 3.91 in x 3.31 in
  • Displacement: 3.9 liters (239 cubic inches)
Cylinder Head
  • Cylinder head material: Aluminum
  • Valvetrain: OHV (Overhead Valve)
  • Number of valves: 12
  • Camshaft type: Single overhead camshaft

Maintenance and Service

This section provides information on maintaining and servicing the 3.9L V6 engine. It includes recommended service intervals, common maintenance tasks, and tips for keeping the engine in optimal condition.

Service Intervals
  • Oil change interval: Every 3,000 miles
  • Spark plug replacement: Every 30,000 miles
  • Air filter replacement: Every 15,000 miles
  • Coolant flush: Every 60,000 miles
Common Maintenance Tasks
  • Check and replace engine oil
  • Inspect and replace air filter
  • Check and adjust valve clearance
  • Inspect and replace timing belt

Engine Specifications

Overview

Type
Naturally Aspirated V6
Configuration
60-degree V6
Displacement
3.9 liters (238 cubic inches)
Fuel System
Multi-Port Fuel Injection
Location
Front Longitudinal
Cooling System
Liquid-Cooled

Dimensions

Length
28.5 inches (724 mm)
Width
26.7 inches (678 mm)
Height
27.3 inches (693 mm)
Weight
450 lbs (204 kg)
Bore
3.91 inches (99.3 mm)
Stroke
3.31 inches (84 mm)
Oil Capacity
5 quarts (4.7 liters)
Coolant Capacity
12 quarts (11.4 liters)

Materials

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

Features

Performance
  • 175 horsepower @ 4,800 RPM
  • 225 lb-ft torque @ 3,200 RPM
  • Compression Ratio: 8.9:1
Ignition System
  • Distributorless Ignition System (DIS)
  • Electronic Spark Control
  • 6 Spark Plugs
Fuel System
  • Sequential Fuel Injection
  • Returnless Fuel System
  • Fuel Pressure Regulator
Emissions
  • EGR System
  • Catalytic Converter
  • OBD-II Compliance
Cooling
  • High-Flow Water Pump
  • Thermostatically Controlled Fan
  • Radiator with Aluminum Core

Safety Features

Engine Protection
  • Oil Pressure Sensor
  • Coolant Temperature Sensor
  • Low Oil Level Warning
Emissions Control
  • Evaporative Emission Control System
  • Positive Crankcase Ventilation

Comfort Features

Noise Reduction
  • Balanced Crankshaft
  • Rubber Engine Mounts
  • Acoustic Engine Cover
Vibration Reduction
  • Hydraulic Lifters
  • Counterbalanced Crankshaft

Accessories

Belts
  • Serpentine Belt
  • Timing Belt
  • Accessory Drive Belt
Filters
  • Oil Filter
  • Air Filter
  • Fuel Filter
Fluids
  • Engine Oil (5W-30)
  • Coolant (Ethylene Glycol)
  • Transmission Fluid

Maintenance

Service interval
  • 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 50,000 Miles
  • Timing Belt Replacement Every 60,000 Miles
Notes
Use synthetic oil for extended intervals. Check for leaks regularly.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Bumper-to-Bumper
Powertrain
Miles: 60,000
Years: 5
Coverage: Engine, Transmission, Drivetrain
Emissions
Miles: 50,000
Years: 5
Coverage: Catalytic Converter, EGR System
Corrosion
Miles: 100,000
Years: 7
Coverage: Perforation from Corrosion

Production Details

Manufacturer
Chrysler Corporation
Manufacturing Process
  • Casting for Engine Block
  • CNC Machining for Cylinder Heads
  • Heat Treatment for Crankshaft
Quality Control
inspection: 100% Engine Testing
Tolerance: ±0.001 inches for Critical Components
Sustainability
  • Recycled Aluminum for Heads
  • Low Emission Manufacturing
  • Waste Reduction Programs
Production Metrics
Units Per Day: 250
Defect Rate: 0.5%
Energy Usage: 500 kWh per Engine

Service Information for 3.9l v6 engine Service

Maintenance and service requirements specific to this component

3,000
3
  • Oil and Filter Change
  • Inspect Belts and Hoses
  • Check Fluid Levels
  • Inspect for Leaks

Use synthetic oil for better performance.

15,000
12
  • Replace Air Filter
  • Inspect Spark Plugs
  • Check Battery Condition
  • Inspect Exhaust System

Ensure all connections are tight and secure.

60,000
60
  • Replace Timing Belt
  • Flush Coolant System
  • Inspect Fuel System
  • 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 V6 engine compatible with other Dodge models?

The 3.9L V6 engine was primarily designed for the 1997-2004 Ram Dakota. While it shares some components with other Dodge models, direct compatibility is limited. Always verify engine specifications and mounting points before attempting cross-model installations. Consult a professional mechanic or refer to the manufacturer’s guidelines for precise compatibility information.

Q2

What are the maintenance requirements for the 3.9L V6 engine?

Regular maintenance is crucial for optimal performance. Change the oil and oil filter every 3,000-5,000 miles. Inspect spark plugs, belts, and hoses every 15,000 miles. Replace the air filter annually and flush the cooling system every 30,000 miles. Always use manufacturer-recommended fluids and parts to ensure longevity and reliability.

Q3

How do I install or replace the 3.9L V6 engine in a Ram Dakota?

Begin by disconnecting the battery and draining fluids. Remove the exhaust system, drive belts, and accessories. Unbolt the transmission and engine mounts. Use an engine hoist to lift the engine out. For installation, reverse the process, ensuring all components are properly aligned and torqued. Refer to the service manual for detailed instructions and torque specifications.

Q4

What should I do if my 3.9L V6 engine is misfiring?

Start by checking the spark plugs, ignition wires, and distributor cap for wear or damage. Inspect the fuel injectors and fuel filter for clogs. Verify the timing and compression levels. If the issue persists, scan for error codes using an OBD-II scanner. Address any identified faults and retest the engine.

Q5

How can I optimize the performance of my 3.9L V6 engine?

Upgrade the air intake and exhaust systems for improved airflow. Use high-performance spark plugs and ignition coils. Regularly tune the engine and ensure proper fuel delivery. Consider installing a performance chip for enhanced throttle response. Maintain proper tire pressure and reduce vehicle weight for better overall efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

1997-2004 Ram Dakota Service Manual

Coming Soon

Comprehensive guide covering maintenance, repairs, and troubleshooting for the 3.9L V6 engine and other components.

Technical Service Bulletin for 3.9L V6 Engine

Coming Soon

Official bulletin addressing common issues, updates, and fixes for the 3.9L V6 engine in Ram Dakota models.

Ram Dakota Parts and Accessories Catalog

Coming Soon

Detailed catalog listing OEM and aftermarket parts for the 1997-2004 Ram Dakota, including the 3.9L V6 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.
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  • If you're unsure about any procedure, consult a qualified professional mechanic.
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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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