Pontiac Pontiac G6 2005-2010 3.9L V6 Engine Specifications
Explore the detailed 3.9L V6 engine specifications for the 2005-2010 Pontiac G6. 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 3.9L V6 engine used in the 2005-2010 Pontiac G6. It is designed for automotive enthusiasts, mechanics, and owners seeking comprehensive insights into the engine's performance, design, and maintenance. 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 locate information efficiently.
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Use the search bar to find specific terms or topics related to the 3.9L V6 engine. Enter keywords like 'horsepower,' 'torque,' or 'fuel efficiency' to quickly locate relevant details.
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Key Specifications
Horsepower
240 HP
Torque
240 lb-ft
Displacement
3.9L
Fuel Efficiency
17 MPG city
Weight
350 lbs
Available Specifications
Engine Performance
This section covers the performance metrics of the 3.9L V6 engine, including horsepower, torque, and acceleration. It also discusses fuel efficiency and how the engine's design contributes to its overall performance.
Engine Performance
This section covers the performance metrics of the 3.9L V6 engine, including horsepower, torque, and acceleration. It also discusses fuel efficiency and how the engine's design contributes to its overall performance.
Power Output
- Horsepower: 240 HP @ 6000 RPM
- Torque: 240 lb-ft @ 3000 RPM
- 0-60 mph time: Approximately 6.5 seconds
- Top speed: 130 mph (electronically limited)
- Fuel efficiency: 17 MPG city / 25 MPG highway
Engine Design
- Naturally aspirated V6 configuration
- DOHC (Dual Overhead Camshaft) design
- Aluminum block and heads for reduced weight
- Variable Valve Timing (VVT) for improved efficiency
- Multi-port fuel injection system
Technical Specifications
This section delves into the technical details of the 3.9L V6 engine, including its dimensions, weight, and internal components. It also highlights key features that enhance its reliability and performance.
Technical Specifications
This section delves into the technical details of the 3.9L V6 engine, including its dimensions, weight, and internal components. It also highlights key features that enhance its reliability and performance.
Dimensions and Weight
- Displacement: 3.9 liters (238 cubic inches)
- Bore x Stroke: 94 mm x 93 mm
- Engine weight: Approximately 350 lbs
- Overall length: 28 inches
- Oil capacity: 6 quarts with filter
Internal Components
- Forged steel crankshaft
- Hypereutectic pistons for durability
- High-flow cylinder heads
- Hydraulic roller lifters
- Timing chain with automatic tensioner
Maintenance and Durability
This section provides insights into the maintenance requirements and durability of the 3.9L V6 engine. It includes recommended service intervals, common issues, and tips for extending the engine's lifespan.
Maintenance and Durability
This section provides insights into the maintenance requirements and durability of the 3.9L V6 engine. It includes recommended service intervals, common issues, and tips for extending the engine's lifespan.
Service Intervals
- Oil change: Every 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
Common Issues
- Oil leaks from valve cover gaskets
- Ignition coil failures
- Excessive oil consumption
- Water pump failures
- Throttle body sensor malfunctions
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Engine Specifications
Overview
- Type
- V6
- Configuration
- 60-degree
- Platform
- GM High Feature
- Material
- Aluminum block and heads
- Location
- Front, longitudinal
Dimensions
- Length
- 24.5 in (622.3 mm)
- Width
- 27.6 in (701 mm)
- Height
- 28.3 in (718.8 mm)
- Weight
- 370 lbs (167.8 kg)
- Displacement
- 237.4 cu in (3890 cc)
- Bore
- 3.94 in (100 mm)
- Stroke
- 3.32 in (84.4 mm)
- Oil Capacity
- 6.0 quarts (5.7 liters)
Materials
- Block
- Aluminum
- Cylinder Heads
- Aluminum
- Crankshaft
- Forged steel
- Pistons
- Aluminum alloy
- Valve Springs
- High-tensile steel
Features
- Performance
-
- Variable Valve Timing (VVT)
- Multi-port fuel injection
- Dual overhead camshafts (DOHC)
- Electronic throttle control
- Efficiency
-
- Low-friction piston rings
- Optimized combustion chamber
- Lightweight components
- Integrated exhaust manifolds
- Cooling
-
- High-capacity water pump
- Dual thermostats
- Cross-flow cooling system
- Efficient radiator design
- Emissions
-
- Closed-loop fuel system
- Catalytic converter
- EGR system
- OBD-II compliance
- Durability
-
- Forged steel crankshaft
- High-strength connecting rods
- Hardened valve seats
- Long-life timing chain
Safety Features
- Engine Management
-
- Knock sensor
- Overheat protection
- Low oil pressure shutdown
- Fuel System
-
- Leak detection
- Fuel cut-off in crash
Comfort Features
- Noise Reduction
-
- Acoustic engine covers
- Balanced rotating assembly
- Isolated mounts
- Vibration Control
-
- Dual-mass flywheel
- Hydraulic mounts
- Precision balancing
Accessories
- Belt Driven
-
- Alternator
- Power steering pump
- Air conditioning compressor
- Electrical
-
- Starter motor
- Ignition coils
- Sensors array
- Cooling
-
- Radiator
- Cooling fan
- Thermostat
Maintenance
- Service interval
-
- Oil change every 5,000 miles (8,000 km)
- Spark plugs every 30,000 miles (48,000 km)
- Timing chain inspection every 60,000 miles (96,000 km)
- Coolant flush every 100,000 miles (160,000 km)
- Air filter replacement every 15,000 miles (24,000 km)
- Maintenance Notes
-
- Use synthetic oil for optimal performance
- Check engine mounts regularly
- Inspect belts for wear and tension
Warranty
- Bumper To Bumper
- Miles: 36,000Years: 3Coverage: Comprehensive
- Powertrain
- Miles: 60,000Years: 5Coverage: Engine, transmission, drivetrain
- Corrosion
- Miles: 100,000Years: 6Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Catalytic converter, ECU
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- inspection: 100% component testingTolerances: Within 0.001 in (0.025 mm)Endurance: 500-hour dyno test
- Sustainability Practices
-
- Recycled aluminum
- Efficient machining
- Low-emission coatings
- Production Metrics
- Units Per Day: 500Defect Rate: 0.01%Energy Use: 100 kWh per unit
Service Information for 3.9l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect belts and hoses
- Check fluid levels
- Inspect engine mounts
- Scan for diagnostic codes
Use only recommended synthetic oil
- Replace spark plugs
- Inspect ignition coils
- Check timing chain tension
- Inspect exhaust system
- Test fuel system pressure
Requires special tools for spark plug replacement
- Replace timing chain
- Flush cooling system
- Replace water pump
- Inspect and clean fuel injectors
- Perform compression test
Major service, recommended at authorized dealer
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.9L V6 engine compatible with other Pontiac models?
Is the 3.9L V6 engine compatible with other Pontiac models?
The 3.9L V6 engine was specifically designed for the 2005-2010 Pontiac G6. While it shares some design similarities with other GM engines, it is not directly compatible with other Pontiac models without significant modifications. Always verify compatibility with your vehicle's specifications before attempting any engine swaps or upgrades.
Q2 What are the maintenance requirements for the 3.9L V6 engine?
What are the maintenance requirements for the 3.9L V6 engine?
The 3.9L V6 engine requires regular maintenance to ensure optimal performance. This includes oil changes every 3,000-5,000 miles, air filter replacements every 15,000 miles, and spark plug replacements every 30,000 miles. Additionally, coolant should be flushed every 50,000 miles, and timing belt inspections are recommended every 60,000 miles. Adhering to this schedule helps prevent costly repairs and extends engine life.
Q3 How do I replace the 3.9L V6 engine in a Pontiac G6?
How do I replace the 3.9L V6 engine in a Pontiac G6?
Replacing the 3.9L V6 engine involves several steps. First, disconnect the battery and drain all fluids. Remove the air intake, exhaust manifold, and engine accessories. Disconnect wiring harnesses and hoses, then unbolt the engine mounts and transmission. Use an engine hoist to lift the engine out. Install the new engine by reversing the process, ensuring all connections are secure. Torque bolts to manufacturer specifications and refill fluids before testing.
Q4 What are common troubleshooting steps for the 3.9L V6 engine?
What are common troubleshooting steps for the 3.9L V6 engine?
Common issues with the 3.9L V6 engine include rough idling, loss of power, and overheating. Start by checking for error codes with an OBD-II scanner. Inspect spark plugs, ignition coils, and fuel injectors for wear. Verify coolant levels and check for leaks. If the engine overheats, inspect the thermostat and radiator. For persistent issues, consult a professional mechanic to diagnose and resolve the problem.
Q5 How can I optimize the performance of the 3.9L V6 engine?
How can I optimize the performance of the 3.9L V6 engine?
To optimize performance, use high-quality synthetic oil and ensure proper air intake by replacing air filters regularly. Upgrade to performance spark plugs and ignition coils for better combustion. Consider installing a cold air intake or aftermarket exhaust system to improve airflow. Regularly clean the throttle body and fuel injectors. Tuning the engine with a performance chip can also enhance horsepower and fuel 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.
2005-2010 Pontiac G6 Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and troubleshooting for the Pontiac G6, including the 3.9L V6 engine.
Technical Service Bulletin for 3.9L V6 Engine
Coming SoonOfficial bulletin addressing common issues and updates for the 3.9L V6 engine in the Pontiac G6.
Pontiac G6 Parts and Accessories Catalog
Coming SoonCatalog listing OEM and aftermarket parts for the Pontiac G6, including engine components for the 3.9L V6.
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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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