Pontiac Pontiac Grand Prix 2004-2008 3.8L V6 Engine Specifications
Explore the detailed 3.8L V6 engine specifications for the 2004-2008 Pontiac Grand Prix. This guide covers technical data, performance metrics, and maintenance tips for owners and mechanics.
Overview Specifications
This document provides detailed specifications and technical information about the 3.8L V6 engine used in the 2004-2008 Pontiac Grand Prix. 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 efficiently locate specific details or browse through the sections for comprehensive insights.
How to Use
Use the search functionality to quickly find specific terms or topics related to the 3.8L V6 engine. Enter keywords like 'horsepower' or 'torque' to jump directly to relevant sections.
Navigate through the document by scrolling through the sections or using the table of contents. Each section is organized into subsections with clear headings for easy access to detailed information.
Key Specifications
Engine Displacement
3.8 liters
Horsepower
200 HP
Torque
230 lb-ft
Fuel System
Sequential Fuel Injection
Compression Ratio
9.4:1
Available Specifications
Engine Performance
This section covers the performance characteristics of the 3.8L V6 engine, including horsepower, torque, and acceleration. Learn about the engine's capabilities and how it enhances the driving experience of the Pontiac Grand Prix.
Engine Performance
This section covers the performance characteristics of the 3.8L V6 engine, including horsepower, torque, and acceleration. Learn about the engine's capabilities and how it enhances the driving experience of the Pontiac Grand Prix.
Horsepower and Torque
- 200 horsepower at 5200 RPM
- 230 lb-ft of torque at 4000 RPM
- Optimized for smooth acceleration
- Enhanced fuel efficiency
Acceleration
- 0-60 mph in 7.5 seconds
- Responsive throttle response
- Balanced power delivery
- Suitable for both city and highway driving
Engine Design
Explore the design features of the 3.8L V6 engine, including its layout, materials, and construction. Understand how these elements contribute to the engine's durability and performance.
Engine Design
Explore the design features of the 3.8L V6 engine, including its layout, materials, and construction. Understand how these elements contribute to the engine's durability and performance.
Layout and Configuration
- Naturally aspirated V6 configuration
- Front-engine, front-wheel-drive layout
- Cast iron block for durability
- Aluminum cylinder heads for weight reduction
Materials and Construction
- High-strength alloy components
- Forged steel crankshaft
- Precision-machined pistons
- Advanced gasket technology for reliability
Maintenance and Reliability
This section provides essential information on maintaining the 3.8L V6 engine, including recommended service intervals and common issues. Ensure your engine remains in peak condition with these tips.
Maintenance and Reliability
This section provides essential information on maintaining the 3.8L V6 engine, including recommended service intervals and common issues. Ensure your engine remains in peak condition with these tips.
Service Intervals
- Oil change every 3,000 to 5,000 miles
- Spark plug replacement every 30,000 miles
- Timing belt inspection at 60,000 miles
- Coolant flush every 50,000 miles
Common Issues
- Intake manifold gasket leaks
- Coolant system failures
- Ignition coil problems
- Throttle body sensor malfunctions
Search Specifications
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Engine Specifications
Overview
- Type
- Naturally Aspirated V6
- Configuration
- 60-degree V6
- Displacement
- 3.8 liters (231 cubic inches)
- Fuel System
- Sequential Fuel Injection
- Location
- Front, Longitudinal
Dimensions
- Length
- 26.5 inches (673 mm)
- Width
- 28.3 inches (719 mm)
- Height
- 27.6 inches (701 mm)
- Weight
- 410 lbs (186 kg)
- Bore
- 3.80 inches (96.5 mm)
- Stroke
- 3.40 inches (86.4 mm)
- Compression Ratio
- 9.4:1
Materials
- Block
- Cast Iron
- Cylinder Heads
- Aluminum
- Pistons
- Aluminum Alloy
- Crankshaft
- Forged Steel
- intake Manifold
- Composite Plastic
Features
- Performance
-
- 200 hp @ 5200 rpm
- 230 lb-ft torque @ 4000 rpm
- Electronic Throttle Control
- Variable Effort Steering
- Fuel Efficiency
-
- EPA Estimated 18 mpg city
- EPA Estimated 28 mpg highway
- Low Emissions Vehicle (LEV) Certified
- Cooling
-
- High-Capacity Radiator
- Electric Cooling Fan
- Thermostatically Controlled
- Ignition
-
- Coil-Near-Plug Ignition
- 100,000-Mile Spark Plugs
- Knock Sensor System
- Lubrication
-
- Full-Pressure Lubrication
- Oil Cooler
- High-Capacity Oil Pump
Safety Features
- Engine Protection
-
- Low Oil Pressure Warning
- Overheat Warning System
- Fail-Safe Cooling
- Emissions
-
- Catalytic Converter
- EGR System
- EVAP System
Comfort Features
- Noise Reduction
-
- Acoustic Engine Covers
- Hydraulic Engine Mounts
- Tuned Exhaust System
- Smooth Operation
-
- Balanced Crankshaft
- Dual Mass Flywheel
- Harmonic Balancer
Accessories
- Belts
-
- Serpentine Belt
- Timing Belt
- Accessory Drive Belt
- Filters
-
- Oil Filter
- Air Filter
- Fuel Filter
- Gaskets
-
- Head Gasket
- Intake Manifold Gasket
- Valve Cover Gasket
Maintenance
- Service interval
- Every 7,500 miles or 6 months
- Service Items
-
- Oil and Filter Change
- Air Filter Inspection
- Spark Plug Replacement
- Coolant Flush
- Timing Belt Inspection
- Maintenance Notes
- Use only GM-recommended fluids and parts for optimal performance.
Warranty
- Bumper To Bumper
- 3 years or 36,000 miles
- Powertrain
- 5 years or 60,000 miles
- Emissions
- 8 years or 80,000 miles
- Corrosion
- 6 years or 100,000 miles
- Warranty Terms
- Includes parts and labor, excludes wear items.
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- inspection: 100% Engine TestingTolerance: Precision Machined ComponentsCertification: ISO 9001 Certified
- Sustainability
-
- Recyclable Materials
- Low Emission Manufacturing
- Energy-Efficient Processes
- Production Metrics
- Annual Production: 150,000 unitsDefect Rate: Less than 0.1%Assembly Time: 4.5 hours per engine
Service Information for 3.8l v6 engine Service
Maintenance and service requirements specific to this component
- Oil and Filter Change
- Inspect Air Filter
- Check Coolant Level
- Inspect Belts and Hoses
- Test Battery
Use synthetic oil for extended intervals.
- Replace Air Filter
- Inspect Spark Plugs
- Check Timing Belt
- Flush Cooling System
- Inspect Fuel System
Replace timing belt if signs of wear are present.
- Replace Timing Belt
- Replace Water Pump
- Flush Transmission Fluid
- Inspect Engine Mounts
- Perform Compression Test
Critical to replace timing belt to prevent engine damage.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 3.8L V6 engine compatible with other Pontiac models from 2004-2008?
Is the 3.8L V6 engine compatible with other Pontiac models from 2004-2008?
The 3.8L V6 engine in the 2004-2008 Pontiac Grand Prix is specifically designed for this model. While it shares similarities with engines in other GM vehicles, compatibility varies. For instance, it may fit certain Buick and Chevrolet models with similar platforms, but modifications may be required. Always verify compatibility with your vehicle’s VIN and consult a professional before attempting installation.
Q2 What are the maintenance requirements for the 3.8L V6 engine?
What are the maintenance requirements for the 3.8L V6 engine?
The 3.8L V6 engine requires regular maintenance to ensure optimal performance. This includes oil changes every 3,000-5,000 miles, spark plug replacement every 30,000 miles, and timing belt inspection every 60,000 miles. Additionally, coolant should be flushed every 50,000 miles, and air filters replaced annually. Adhering to this schedule prevents common issues like overheating and poor fuel efficiency.
Q3 How do I replace the 3.8L V6 engine in a Pontiac Grand Prix?
How do I replace the 3.8L V6 engine in a Pontiac Grand Prix?
Replacing the 3.8L V6 engine involves several steps: disconnect the battery, drain fluids, and remove components like the alternator, AC compressor, and exhaust manifold. Use an engine hoist to lift the old engine out. Install the new engine by reversing the process, ensuring all connections are secure. Torque bolts to manufacturer specifications and refill fluids. Professional assistance is recommended for this complex task.
Q4 What are common troubleshooting steps for the 3.8L V6 engine?
What are common troubleshooting steps for the 3.8L V6 engine?
Common issues with the 3.8L V6 engine include rough idling, misfires, and overheating. Start by checking spark plugs, ignition coils, and fuel injectors. Inspect the cooling system for leaks or blockages. Use an OBD-II scanner to identify error codes. If the engine is losing power, check the air intake and exhaust systems for obstructions. Regular diagnostics can prevent major repairs.
Q5 How can I optimize the performance of the 3.8L V6 engine?
How can I optimize the performance of the 3.8L V6 engine?
To optimize performance, use high-quality synthetic oil and ensure timely maintenance. Upgrade to performance spark plugs and air filters for better combustion. Consider installing a cold air intake and aftermarket exhaust system for improved airflow. Regularly clean the throttle body and fuel injectors. Tuning the engine with a performance chip can also enhance horsepower and torque.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Pontiac Grand Prix 2004-2008 Service Manual
Coming SoonDetailed repair and maintenance instructions for the Pontiac Grand Prix, including the 3.8L V6 engine. Covers diagnostics, part replacements, and troubleshooting.
Technical Service Bulletin for 3.8L V6 Engine
Coming SoonAddresses common issues and updates for the 3.8L V6 engine in the Pontiac Grand Prix. Includes manufacturer-recommended fixes and improvements.
Pontiac Grand Prix Parts and Accessories Catalog
Coming SoonComprehensive guide to OEM and aftermarket parts for the 2004-2008 Pontiac Grand Prix, including the 3.8L V6 engine. Lists compatibility and pricing details.
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Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
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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