Buick Terraza 2005-2007 Fuel System Specifications
Buick Terraza 2005-2007

Buick Terraza 2005-2007 Fuel System Specifications

Explore detailed fuel specifications for the 2005-2007 Buick Terraza, including fuel type, tank capacity, economy, and emission standards. Ideal for maintenance, repairs, and performance optimization.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2005-2007 Buick Terraza. It includes information on fuel type, fuel economy, fuel system components, and maintenance tips. Use this guide to understand the vehicle's fuel requirements and optimize its performance. The content is organized into sections for easy navigation, and a quick reference table is provided for key specifications.

How to Use

Use the search function to find specific terms or phrases related to fuel specifications. Enter keywords like 'fuel type' or 'mileage' to quickly locate relevant information.

Navigate through the document using the section titles and subsections. Each section is clearly labeled to help you find the information you need efficiently.

Key Specifications

Fuel Type

Regular Unleaded

City Mileage

17 MPG

Highway Mileage

24 MPG

Fuel Tank Capacity

19.5 gallons

Octane Rating

87 (min)

Available Specifications

Fuel Type and Requirements

This section covers the type of fuel recommended for the 2005-2007 Buick Terraza and the reasons behind these recommendations. It also includes details on fuel octane ratings and alternative fuel options.

Recommended Fuel Type
  • Regular unleaded gasoline with an octane rating of 87 is recommended.
  • Higher octane fuel (89-93) can be used but is not required.
  • Avoid using diesel or ethanol blends above E10 unless specified.
  • Using the wrong fuel type can damage the engine.
Fuel Octane Ratings
  • Minimum octane rating: 87.
  • Optimal performance at 89-93 octane.
  • Higher octane reduces knocking in high-performance conditions.
  • Always check the owner’s manual for specific recommendations.

Fuel Economy

This section provides detailed information on the fuel efficiency of the Buick Terraza, including city and highway mileage estimates. It also includes tips for improving fuel economy.

Mileage Estimates
  • City mileage: approximately 17 MPG.
  • Highway mileage: approximately 24 MPG.
  • Combined mileage: approximately 20 MPG.
  • Actual mileage may vary based on driving conditions.
Improving Fuel Economy
  • Maintain proper tire pressure.
  • Avoid excessive idling.
  • Use cruise control on highways.
  • Perform regular engine maintenance.

Fuel System Components

This section explains the key components of the Buick Terraza's fuel system, including the fuel pump, fuel injectors, and fuel tank. It also covers maintenance tips for these components.

Fuel Pump
  • Electric fuel pump located inside the fuel tank.
  • Delivers fuel to the engine at high pressure.
  • Signs of failure include engine sputtering and difficulty starting.
  • Replace every 100,000 miles or as needed.
Fuel Injectors
  • Direct fuel into the engine’s combustion chambers.
  • Require periodic cleaning to maintain performance.
  • Symptoms of clogged injectors include poor acceleration.
  • Use fuel injector cleaner every 15,000 miles.

Component Specifications

Overview

Type
Gasoline
Octane Rating
87 (regular unleaded)
Fuel Tank Capacity
19.0 gallons (71.9 liters)
Fuel System
Sequential multi-port fuel injection
Emission Standard
Tier 2 Bin 5

Dimensions

Fuel Tank Length
31.5 inches (80 cm)
Fuel Tank Width
22.8 inches (58 cm)
Fuel Tank Height
12.6 inches (32 cm)
Fuel Line Diameter
0.375 inches (9.5 mm)
Fuel Pump Pressure
58 psi (400 kPa)
Fuel Filter Size
3.15 inches x 2.36 inches (80 mm x 60 mm)
Fuel injector Flow Rate
22 lb/hr (9.98 kg/hr)

Materials

Fuel Tank
HDPE (High-Density Polyethylene)
Fuel Lines
Nylon with rubber coating
Fuel Pump
Stainless steel and plastic
Fuel injectors
Aluminum and stainless steel

Features

Fuel Efficiency
  • EPA-estimated 18 mpg city
  • EPA-estimated 27 mpg highway
  • Fuel economy display
Fuel Delivery
  • Electronic throttle control
  • Returnless fuel system
  • Variable fuel pressure
Fuel Monitoring
  • Low fuel warning light
  • Fuel level sensor
  • Real-time fuel consumption display
Emissions Control
  • Catalytic converter
  • Evaporative emissions system
  • Onboard diagnostics (OBD-II)

Safety Features

Crash Safety
  • Fuel pump cutoff in collisions
  • Reinforced fuel tank
Leak Prevention
  • Rollover valve
  • Fuel tank pressure sensor
Fire Prevention
  • Flame arrestor in fuel tank
  • Insulated fuel lines

Comfort Features

Refueling
  • Capless fuel filler
  • Easy-access fuel door
Driving
  • Smooth acceleration
  • Quiet operation
Maintenance
  • Long-lasting fuel filter
  • Easy fuel pump access

Accessories

Fuel Additives
  • Fuel injector cleaner
  • Octane booster
  • Fuel stabilizer
Fuel Tools
  • Fuel pressure tester
  • Fuel line disconnect tool
  • Fuel filter wrench
Fuel Enhancements
  • High-performance fuel pump
  • Upgraded fuel injectors

Maintenance

Service interval
Every 30,000 miles (48,280 km)
Service Items
  • Inspect fuel lines for leaks
  • Replace fuel filter
  • Clean fuel injectors
  • Check fuel pump pressure
  • Inspect fuel tank for damage
Maintenance Notes
Use only unleaded gasoline with the recommended octane rating

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Fuel system components
Powertrain Warranty
Miles: 100,000
Years: 5
Coverage: Fuel injectors and fuel pump
Emissions Warranty
Miles: 50,000
Years: 4
Coverage: Catalytic converter and fuel system
Corrosion Warranty
Miles: 100,000
Years: 6
Coverage: Fuel tank

Production Details

Manufacturer
Delphi Technologies
Manufacturing Process
  • Injection molding for fuel tank
  • CNC machining for fuel injectors
  • Robotic assembly for fuel pump
Quality Control
Pressure Testing: All fuel lines and tanks
Leak Testing: Complete fuel system
Performance Testing: Fuel pump and injectors
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 Usage: 2.5 kWh per unit

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

30,000
24
  • Inspect fuel lines and connections
  • Check fuel pump pressure
  • Replace fuel filter
  • Inspect fuel tank for damage
  • Test fuel injectors

Use only OEM-approved replacement parts

60,000
48
  • Clean fuel injectors
  • Inspect fuel tank pressure sensor
  • Check for fuel leaks
  • Test fuel pump performance
  • Inspect evaporative emissions system

Perform fuel system pressure test

100,000
84
  • Replace fuel pump
  • Replace fuel filter
  • Inspect and clean fuel tank
  • Check fuel system diagnostics
  • Test catalytic converter efficiency

May require specialized tools for fuel pump replacement

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the recommended fuel type and capacity for the 2005-2007 Buick Terraza?

The 2005-2007 Buick Terraza is equipped with a 3.5L V6 engine, requiring regular unleaded gasoline with an octane rating of 87. The fuel tank capacity is approximately 20 gallons. Using higher-octane fuel does not provide significant benefits for this engine. Ensure compatibility with E10 ethanol-blended fuel, as it is approved for use in this vehicle.

Q2

What is the maintenance schedule for the fuel system?

Regular fuel system maintenance includes inspecting fuel lines and connections every 12,000 miles, replacing the fuel filter every 15,000 miles, and cleaning the fuel injectors every 30,000 miles. Additionally, check for any signs of leaks or damage, and address any issues promptly to maintain optimal performance and safety.

Q3

How do I replace the fuel filter?

To replace the fuel filter, locate it under the vehicle near the fuel tank. Disconnect the negative battery terminal, then use a filter wrench to loosen and remove the old filter. Install the new filter by hand tightening it in the correct direction. Reconnect the battery and start the engine to check for leaks. Properly dispose of the old filter.

Q4

What are common causes of fuel system issues?

Common issues include clogged fuel filters, faulty fuel pressure sensors, or malfunctioning fuel pumps. Symptoms may include difficulty starting the engine, reduced fuel efficiency, or loss of power. Use a scan tool to check for trouble codes and inspect fuel lines for damage or blockages.

Q5

How can I improve fuel efficiency?

Maintain proper tire pressure, remove extra weight, and drive at moderate speeds. Regular tune-ups, including spark plug replacement and air filter cleaning, can also enhance efficiency. Avoid aggressive driving and use cruise control on highways to optimize fuel consumption.

Factory Service Resources

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

Buick Terraza Service Manual (2005-2007)

Coming Soon

Comprehensive guide covering diagnostics, repairs, and maintenance procedures for the Buick Terraza fuel system.

Technical Service Bulletin - Fuel System Updates

Coming Soon

Official GM technical bulletins addressing fuel system improvements and recalls for the 2005-2007 Buick Terraza.

Buick Terraza Parts Catalog

Coming Soon

Detailed listing of genuine GM parts for the fuel system, including filters, pumps, and injectors.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

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