Buick LaCrosse 2005-2009 Fuel System Specifications
Buick LaCrosse 2005-2009

Buick LaCrosse 2005-2009 Fuel System Specifications

Discover the detailed fuel specifications for the 2005-2009 Buick LaCrosse, including fuel type, tank capacity, economy, and emission standards. This guide is essential for maintenance, repair, and performance optimization.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2005-2009 Buick LaCrosse. It includes information on fuel efficiency, fuel type, tank capacity, and emissions. Use this guide to understand the technical aspects of the vehicle's fuel system, optimize performance, and ensure proper maintenance. The sections are organized for easy navigation, and a quick reference table is included for key specifications.

How to Use

Use the search functionality to quickly locate specific fuel-related terms or specifications. Enter keywords like 'fuel efficiency' or 'tank capacity' in the search bar for instant results.

Navigate through the sections by scrolling or using the table of contents. Each section is clearly labeled and contains subsections with detailed technical information.

Key Specifications

City MPG

17 MPG

Highway MPG

26 MPG

Fuel Type

Regular unleaded

Tank Capacity

18 gallons

CO2 Emissions

5.6 tons/year

Available Specifications

Fuel Efficiency

This section covers the fuel efficiency metrics for the 2005-2009 Buick LaCrosse. Learn about the vehicle's miles per gallon (MPG) ratings for city, highway, and combined driving conditions.

City MPG
  • Average city MPG: 17
  • Factors affecting city MPG: traffic conditions, driving habits
  • Tips for improving city MPG: smooth acceleration, reduced idling
  • Comparison with similar vehicles
Highway MPG
  • Average highway MPG: 26
  • Factors affecting highway MPG: speed, terrain
  • Tips for improving highway MPG: maintaining steady speed, proper tire pressure
  • Comparison with similar vehicles

Fuel Type and Tank Capacity

This section details the recommended fuel type and the fuel tank capacity for the Buick LaCrosse. Understand the importance of using the correct fuel and the impact on performance.

Recommended Fuel Type
  • Fuel type: Regular unleaded gasoline
  • Octane rating: 87
  • Benefits of using recommended fuel: optimal performance, reduced emissions
  • Risks of using incorrect fuel: engine knocking, reduced efficiency
Fuel Tank Capacity
  • Tank capacity: 18 gallons
  • Range on a full tank: approximately 468 miles
  • Factors affecting range: driving conditions, vehicle load
  • Tips for maximizing range: regular maintenance, efficient driving

Emissions and Environmental Impact

This section explores the emissions standards and environmental impact of the 2005-2009 Buick LaCrosse. Learn about the vehicle's compliance with emission regulations and its carbon footprint.

Emissions Standards
  • Compliance: meets EPA Tier 2 Bin 5 standards
  • Emissions control systems: catalytic converter, EGR valve
  • Impact of emissions on air quality
  • Maintenance tips for reducing emissions
Carbon Footprint
  • Average CO2 emissions: 5.6 tons annually
  • Factors contributing to carbon footprint: fuel consumption, driving habits
  • Ways to reduce carbon footprint: carpooling, using public transport
  • Comparison with eco-friendly vehicles

Component Specifications

Overview

Type
Gasoline
Octane Rating
87 (Regular)
Tank Capacity
18.5 gallons
Fuel Delivery
Sequential Fuel Injection
Emission Standard
Tier 2 Bin 5

Dimensions

Tank Length
33.5 inches
Tank Width
25.2 inches
Tank Height
10.8 inches
Fuel Line Diameter
0.375 inches
Fuel Pump Pressure
58 psi
Fuel Filter Size
3.5 inches x 1.5 inches
Fuel injector Flow Rate
24 lbs/hr

Materials

Fuel Tank
High-density polyethylene
Fuel Lines
Nylon with synthetic rubber coating
Fuel Pump
Stainless steel with plastic housing
Fuel Filter
Cellulose with synthetic media

Features

Fuel System
  • Electronic fuel injection
  • Returnless fuel system
  • Evaporative emission control
Monitoring
  • Fuel level sensor
  • Fuel pressure sensor
  • Oxygen sensors
Efficiency
  • Optimized fuel injectors
  • Variable fuel pressure
  • Enhanced combustion efficiency
Maintenance
  • Replaceable fuel filter
  • Serviceable fuel pump
  • Easy-access fuel filler
Safety
  • Rollover valve
  • Impact-resistant fuel tank
  • Leak detection system

Safety Features

Crash Protection
  • Fuel shutoff valve
  • Reinforced fuel tank
Fire Prevention
  • Flame arrestor
  • Thermal protection
  • Leak detection

Comfort Features

Refueling
  • Easy-access fuel door
  • Automatic fuel door release
  • Fuel cap tether
Driving
  • Smooth fuel delivery
  • Consistent fuel pressure
  • Quiet fuel pump operation

Accessories

Fuel Additives
  • Fuel system cleaner
  • Octane booster
  • Fuel stabilizer
Fuel Caps
  • Locking fuel cap
  • Vented fuel cap
  • OEM replacement cap
Monitoring
  • Fuel pressure gauge
  • Fuel level monitor
  • Fuel consumption tracker

Maintenance

Service interval
Every 30,000 miles
Service Items
  • Replace fuel filter
  • Inspect fuel lines
  • Check fuel pump operation
  • Test fuel pressure
  • Clean fuel injectors
Maintenance Notes
Use only recommended fuel types and additives

Warranty

Fuel Tank Warranty
5 years / 60,000 miles
Fuel Pump Warranty
3 years / 36,000 miles
Fuel System Warranty
8 years / 80,000 miles
Emission Warranty
15 years / 150,000 miles

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Injection molding for fuel tank
  • Precision machining for fuel pump
  • Automated assembly for fuel lines
Quality Control
Pressure Test: 100 psi
Leak Test: Pass/Fail criteria
Material inspection: ISO 9001 certified
Sustainability Practices
  • Recycled materials in fuel tank
  • Low-emission manufacturing
  • Energy-efficient production
Production Metrics
Annual Production: 500,000 units
Defect Rate: 0.01%
Energy Consumption: 2.5 kWh per unit

Service Information for fuel Service

Maintenance and service requirements specific to fuel system

30,000 miles
24 months
  • Inspect fuel lines for leaks
  • Replace fuel filter
  • Check fuel pump pressure
  • Test fuel injectors
  • Clean fuel tank filler neck

Ensure all connections are secure and free of debris

60,000 miles
48 months
  • Replace fuel pump if necessary
  • Inspect and clean fuel injectors
  • Check fuel tank for damage
  • Test fuel pressure regulator
  • Inspect evaporative emission system

Use OEM parts for replacements to ensure compatibility

100,000 miles
84 months
  • Replace fuel pump assembly
  • Replace fuel filter and lines if needed
  • Clean fuel tank internally
  • Inspect and replace fuel pressure sensor
  • Perform complete fuel system diagnostic

Critical to address any fuel system warnings immediately

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the fuel system specifications for the 2005-2009 Buick LaCrosse?

The 2005-2009 Buick LaCrosse uses a fuel-injected engine with a fuel tank capacity of approximately 18 gallons. It is compatible with regular unleaded gasoline (87 octane) or mid-grade (89-90 octane) for optimal performance. The fuel system includes components such as fuel injectors, fuel pump, fuel filter, and fuel pressure regulator. Proper maintenance is essential to ensure efficiency and longevity.

Q2

What are the recommended maintenance requirements for the fuel system?

Regular maintenance is crucial for the fuel system. Replace the fuel filter every 15,000 to 30,000 miles. Inspect the fuel lines and connections annually for signs of wear or leaks. The fuel injectors should be cleaned every 30,000 miles, and the fuel pressure regulator should be checked every 60,000 miles. Neglecting these can lead to decreased performance, reduced fuel efficiency, and potential engine damage.

Q3

How do I replace the fuel filter on my 2005-2009 Buick LaCrosse?

To replace the fuel filter: 1) Ensure the vehicle is on level ground and the engine is cool. 2) Locate the fuel filter, usually near the fuel tank or along the fuel line. 3) Use a wrench to loosen the filter. 4) Remove the filter and dispose of it properly. 5) Install the new filter by hand tightening it. 6) Start the engine and check for leaks. Always refer to the service manual for specific instructions and safety precautions.

Q4

How do I troubleshoot common fuel system issues in my Buick LaCrosse?

Common issues include poor engine performance or reduced fuel efficiency. Check the fuel filter for blockages and replace it if necessary. Inspect fuel lines for leaks or damage. Use a fuel pressure test kit to ensure the fuel pressure regulator is functioning correctly. If issues persist, scan for trouble codes using an OBD-II scanner to identify faulty sensors or components.

Q5

How can I optimize the performance of my Buick LaCrosse's fuel system?

Optimize performance by ensuring regular maintenance, using high-quality fuel, and driving efficiently. Avoid aggressive acceleration and maintain proper tire pressure. Consider upgrading to a high-flow air filter and ensuring the exhaust system is free of restrictions. These steps can improve fuel efficiency by 10-15% and enhance overall engine performance.

Factory Service Resources

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

2005-2009 Buick LaCrosse Service Manual

Coming Soon

Comprehensive guide covering diagnostics, repair procedures, and technical specifications for the Buick LaCrosse fuel system.

GM Technical Bulletin: Fuel System Updates

Coming Soon

Details enhancements and troubleshooting for fuel system components, including updates and recalls.

Buick LaCrosse Parts Catalog

Coming Soon

Lists OEM part numbers for fuel system components, ensuring compatibility and correct replacements.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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