Buick Rainier 2004-2007 Fuel System Specifications
Explore the fuel specifications for the 2004-2007 Buick Rainier, including fuel type, tank capacity, system components, and economy ratings. This guide is essential for maintenance, troubleshooting, and upgrades to ensure optimal vehicle performance.
Overview Specifications
This document provides detailed fuel specifications and related information for the 2004-2007 Buick Rainier. It is designed to assist owners and enthusiasts in understanding the vehicle's fuel system, efficiency, and maintenance requirements. The document is organized into sections for easy navigation and includes a quick reference guide for key specifications. Use the search functionality to find specific terms or navigate through sections to explore detailed information.
How to Use
Use the search bar to enter keywords related to fuel specifications, such as 'fuel type' or 'mileage.' The search will highlight relevant sections and subsections for quick access.
Scroll through the document or click on section titles in the table of contents to jump to specific areas. Each section is organized into subsections for detailed information.
Key Specifications
Fuel Type
Regular Unleaded
City MPG
15-16 mpg
Highway MPG
20-22 mpg
Fuel Tank Capacity
22 gallons
Fuel Filter Replacement
30,000 miles
Available Specifications
Fuel Types and Requirements
This section covers the types of fuel recommended for the 2004-2007 Buick Rainier, including octane ratings and alternative fuel options. It also provides guidelines for fuel additives and compatibility with ethanol blends.
Fuel Types and Requirements
This section covers the types of fuel recommended for the 2004-2007 Buick Rainier, including octane ratings and alternative fuel options. It also provides guidelines for fuel additives and compatibility with ethanol blends.
Recommended Fuel Type
- Regular unleaded gasoline with an octane rating of 87 or higher
- Premium unleaded gasoline (91 octane) for optimal performance
- Ethanol blends up to E10 (10% ethanol) are acceptable
- Avoid using diesel or aviation fuel
Fuel Additives
- Use fuel injector cleaners every 3,000 miles for maintenance
- Avoid additives containing methanol or silicone
- Approved additives can improve fuel efficiency and engine performance
- Check owner's manual for specific recommendations
Fuel Efficiency and Mileage
This section provides detailed information on the Buick Rainier's fuel efficiency, including EPA-estimated mileage, real-world performance, and factors affecting fuel economy.
Fuel Efficiency and Mileage
This section provides detailed information on the Buick Rainier's fuel efficiency, including EPA-estimated mileage, real-world performance, and factors affecting fuel economy.
EPA-Estimated Mileage
- City: 15-16 miles per gallon (mpg)
- Highway: 20-22 mpg
- Combined: 17-18 mpg
- Varies based on engine type and drivetrain
Factors Affecting Fuel Economy
- Driving habits (aggressive vs. conservative)
- Vehicle load and towing capacity
- Tire pressure and alignment
- Environmental conditions (temperature, altitude)
Fuel System Maintenance
This section outlines essential maintenance practices for the Buick Rainier's fuel system, including fuel filter replacement, fuel pump care, and troubleshooting common issues.
Fuel System Maintenance
This section outlines essential maintenance practices for the Buick Rainier's fuel system, including fuel filter replacement, fuel pump care, and troubleshooting common issues.
Fuel Filter Replacement
- Replace every 30,000 miles or as recommended
- Signs of a clogged filter include engine sputtering and poor acceleration
- Use OEM or high-quality aftermarket filters
- Professional installation recommended
Fuel Pump Care
- Keep the fuel tank at least 1/4 full to prevent pump overheating
- Listen for unusual noises indicating pump failure
- Replace fuel pump every 100,000 miles or as needed
- Inspect fuel lines for leaks or damage
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Component Specifications
Overview
- Type
- Gasoline
- Configuration
- Multi-port fuel injection
- Platform
- GM GMT360
- Material
- High-density polyethylene (fuel tank)
- Location
- Rear of vehicle
Dimensions
- Tank Capacity
- 22.0 gallons (83.28 liters)
- Tank Length
- 40.5 inches (102.87 cm)
- Tank Width
- 24.0 inches (60.96 cm)
- Tank Height
- 12.0 inches (30.48 cm)
- Fuel Line Diameter
- 0.375 inches (9.525 mm)
- Fuel Pump Pressure
- 58 psi (400 kPa)
- Fuel Filter Length
- 6.0 inches (15.24 cm)
Materials
- Fuel Tank
- High-density polyethylene
- Fuel Lines
- Nitrile rubber with steel braiding
- Fuel Pump
- Thermoplastic with stainless steel components
- Fuel Filter
- Pleated paper element with metal housing
Features
- Fuel Delivery
-
- Multi-port fuel injection
- Electric fuel pump
- Pressure regulator
- Returnless fuel system
- Tank Features
-
- Impact-resistant construction
- Internal baffles for fuel stability
- Integrated fuel pump module
- Vent valve for emissions control
- Fuel Quality
-
- Compatible with E10 ethanol blends
- Requires 87 octane or higher
- Contains anti-corrosion additives
- Meets EPA emissions standards
- Monitoring
-
- Low fuel warning light
- Fuel level sensor
- Onboard diagnostics (OBD-II)
- Fuel economy display
- Safety
-
- Rollover valve
- Fuel tank impact protection
- Leak detection system
- Evaporative emissions control
Safety Features
- Tank Protection
-
- Impact-resistant design
- Rollover valve
- Fuel cutoff in crash
- Emissions
-
- Evaporative emissions control
- Charcoal canister
- Leak detection system
- Fire Prevention
-
- Fuel cutoff system
- Flame arrestor in fuel pump
- Fire-resistant materials
Comfort Features
- Driving
-
- Smooth fuel delivery
- Consistent fuel pressure
- Reduced engine vibrations
- Refueling
-
- Easy-access fuel filler
- Locking fuel cap
- Fuel level accuracy
- Noise Reduction
-
- Quiet fuel pump operation
- Insulated fuel lines
- Dampened tank vibrations
Accessories
- Refueling
-
- Locking fuel cap
- Fuel funnel
- Fuel additive
- Maintenance
-
- Fuel filter
- Fuel pump assembly
- Fuel injector cleaner
- Monitoring
-
- Fuel gauge
- Fuel level sensor
- OBD-II scanner
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Replace fuel filter
- Inspect fuel lines
- Check fuel pump operation
- Test fuel pressure
- Inspect fuel tank for leaks
- Maintenance Notes
- Use only recommended fuel types to avoid damage to the fuel system.
Warranty
- Basic
- 3 years or 36,000 miles
- Powertrain
- 5 years or 60,000 miles
- Emissions
- 8 years or 80,000 miles
- Fuel System
- 3 years or 36,000 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
- Leak Testing: 100% pressure testingMaterial Verification: Compliance with SAE standardsPerformance Testing: Fuel pump and injector testing
- Sustainability Practices
-
- Recyclable fuel tank materials
- Low-emission manufacturing
- Energy-efficient production
- Production Metrics
- Annual Output: 500,000 unitsDefect Rate: Less than 0.1%Lead Time: 2 weeks
Service Information for fuel Service
Maintenance and service requirements specific to the fuel system
- Replace fuel filter
- Inspect fuel lines for leaks
- Check fuel pump pressure
- Clean fuel injectors
- Inspect fuel tank for damage
Use only OEM or equivalent parts for replacements.
- Replace fuel pump assembly if necessary
- Inspect and clean fuel tank
- Test evaporative emissions system
- Check fuel level sensor accuracy
- Inspect fuel filler neck and cap
Ensure all connections are secure and free of corrosion.
- Replace entire fuel pump module
- Inspect and replace fuel lines if needed
- Perform full fuel system pressure test
- Replace fuel tank if damaged or corroded
- Reset fuel system diagnostics
Major service may require specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the fuel system in the 2004-2007 Buick Rainier?
What are the technical specifications of the fuel system in the 2004-2007 Buick Rainier?
The 2004-2007 Buick Rainier features a fuel-injected 4.2L or 5.3L Vortec V6/V8 engine. The fuel system includes a 25-gallon fuel tank, fuel injectors, fuel lines, and an in-tank fuel pump. The vehicle is compatible with regular unleaded gasoline (87 octane) and is not designed for E85. The fuel system operates under a pressure of approximately 40-50 PSI, with a flow rate of 20-25 gallons per hour depending on engine load.
Q2 What are the maintenance requirements for the fuel system?
What are the maintenance requirements for the fuel system?
Regular maintenance of the fuel system includes inspecting fuel lines and connections for leaks or damage, replacing the fuel filter every 15,000 to 30,000 miles, and cleaning the fuel injectors every 60,000 miles. It is also recommended to use a high-quality fuel additive to prevent deposits and corrosion. Additionally, the fuel tank and cap should be inspected annually for any signs of damage or wear.
Q3 How do I replace the fuel filter?
How do I replace the fuel filter?
To replace the fuel filter on your 2004-2007 Buick Rainier, start by relieving the fuel system pressure by disconnecting the battery and letting the engine run until it stalls. Locate the fuel filter, usually near the fuel tank or along the frame rail. Use a fuel line wrench to disconnect the fuel lines from the filter. Remove the filter and install the new one, ensuring the flow direction matches the arrow on the filter. Reconnect the fuel lines and start the engine to check for leaks. Dispose of the old filter properly.
Q4 How do I troubleshoot a fuel system issue?
How do I troubleshoot a fuel system issue?
If your Buick Rainier experiences fuel system issues, start by checking the fuel gauge and ensuring the tank is not empty. Next, inspect the fuel cap for a proper seal. If the issue persists, check the fuel filter for blockages and replace it if necessary. Listen for unusual noises from the fuel pump or check for trouble codes using an OBD-II scanner. If the problem is more complex, such as a faulty fuel pump or sensor, consult a professional mechanic for diagnosis and repair.
Q5 How can I optimize the performance of my fuel system?
How can I optimize the performance of my fuel system?
To optimize the performance of your Buick Rainier's fuel system, ensure regular maintenance as outlined in the owner's manual. Use high-quality fuel that meets the recommended octane rating and avoid using lower-quality fuels that may contain impurities. Keep the fuel tank at least a quarter full to minimize condensation and contamination. Avoid extreme driving conditions that may strain the fuel system. Lastly, consider upgrading to high-performance fuel components if you are modifying the engine for increased power output.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2004-2007 Buick Rainier Service Manual
Coming SoonComprehensive guide covering technical specifications, maintenance schedules, and repair procedures for the Buick Rainier fuel system.
Fuel System Technical Service Bulletin
Coming SoonOfficial GM technical bulletin addressing common fuel system issues, updates, and repair procedures for the 2004-2007 Buick Rainier.
Buick Rainier Parts Catalog
Coming SoonDetailed catalog of OEM parts and accessories for the Buick Rainier fuel system, including filters, pumps, and lines.
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Technical Information
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