Buick Envision 2021-present Fuel System Specifications
Buick Envision 2021-present

Buick Envision 2021-present Fuel System Specifications

Explore the detailed fuel specifications for the 2021-Present Buick Envision, including fuel type, tank capacity, economy, and emissions. Essential for owners and technicians.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2021-Present Buick Envision. It is designed to help users understand the vehicle's fuel efficiency, engine performance, and related features. Use the 'howTo' section to learn how to search and navigate this document effectively. The 'sections' cover major topics like engine specifications, fuel economy, and fuel system details, while the 'quickReference' section highlights key specifications for quick access.

How to Use

Use the search function to locate specific terms or topics within the document. Enter keywords like 'fuel economy' or 'engine type' in the search bar to find relevant sections quickly.

Navigate through the document by scrolling through the sections or using the table of contents. Each section is labeled clearly, and subsections provide detailed information on specific topics.

Key Specifications

Engine Type

2.0L Turbo

Fuel Tank Capacity

14.4 gallons

City MPG

22 MPG

Highway MPG

29 MPG

Combined MPG

25 MPG

Available Specifications

Engine Specifications

This section covers the engine details of the 2021-Present Buick Envision, including its type, displacement, and fuel requirements. Understanding these specifications is crucial for optimal performance and maintenance.

Engine Type
  • Turbocharged 2.0L 4-cylinder engine
  • Direct fuel injection system
  • Dual overhead camshaft (DOHC) design
  • Variable valve timing for efficiency
Fuel Requirements
  • Requires premium unleaded gasoline (91 octane or higher)
  • Compatible with ethanol blends up to E10
  • Fuel tank capacity: 14.4 gallons
  • Recommended fuel for optimal performance

Fuel Economy

This section provides detailed information on the fuel efficiency of the Buick Envision, including city, highway, and combined MPG ratings. It also discusses factors that influence fuel economy.

MPG Ratings
  • City: 22 MPG
  • Highway: 29 MPG
  • Combined: 25 MPG
  • Based on EPA estimates
Factors Affecting Fuel Economy
  • Driving habits and conditions
  • Vehicle maintenance and tire pressure
  • Use of air conditioning and other accessories
  • Impact of fuel quality

Fuel System

This section explains the components and functionality of the Buick Envision's fuel system, including the fuel pump, injectors, and emissions control.

Fuel Delivery System
  • High-pressure direct fuel injection
  • Electric fuel pump for consistent delivery
  • Fuel filter for contaminant removal
  • Optimized for low emissions
Emissions Control
  • Equipped with a catalytic converter
  • Onboard diagnostics (OBD-II) system
  • Meets stringent emissions standards
  • Reduces nitrogen oxide (NOx) emissions

Component Specifications

Overview

Type
Gasoline
Configuration
Direct Injection
Platform
GM E2XX
Material
Combustible Liquid
Location
Fuel Tank

Dimensions

Tank Capacity
17.7 gal (67 liters)
Fuel Line Diameter
0.5 in (12.7 mm)
Fuel Pump Pressure
58 psi (400 kPa)
Fuel Filter Size
3.5 in x 2.5 in (89 mm x 64 mm)
injector Flow Rate
0.5 gal/hr (1.89 liters/hr)
Fuel Rail Length
24 in (610 mm)
Fuel Tank Weight
30 lbs (13.6 kg)

Materials

Fuel Tank
High-Density Polyethylene
Fuel Lines
Nylon with Rubber Coating
Fuel Pump
Stainless Steel
injectors
Stainless Steel
Fuel Filter
Cellulose and Resin

Features

Fuel Delivery
  • Direct Injection System
  • High-Pressure Fuel Pump
  • Electronic Throttle Control
  • Variable Valve Timing
Efficiency
  • Start-Stop Technology
  • Eco Mode
  • Fuel Economy Display
  • Active Thermal Management
Safety
  • Evaporative Emission Control
  • Fuel Cutoff Switch
  • Leak Detection System
Monitoring
  • Low Fuel Warning
  • Real-Time MPG Display
  • Fuel Range Indicator
  • Maintenance Reminder
Performance
  • Turbocharged Engine Option
  • Advanced Combustion System
  • Optimized Air-Fuel Ratio

Safety Features

Fuel System
  • Automatic Shutoff Valve
  • Impact-Activated Fuel Pump Cutoff
  • Leak Detection Sensor
Emission Control
  • Catalytic Converter
  • Evaporative Emission System
  • Oxygen Sensors
Fire Prevention
  • Flame Arrestor
  • Fuel Tank Shield
  • Heat-Resistant Fuel Lines

Comfort Features

Driving
  • Smooth Acceleration
  • Quiet Operation
  • Efficient Power Delivery
Convenience
  • Easy Fuel Filler Cap
  • Automatic Fuel Door
  • Fuel Level Sensor
Climate
  • Heated Fuel System for Cold Weather
  • Thermal Management
Noise Reduction
  • Insulated Fuel Pump
  • Quiet Fuel Injectors

Accessories

Fuel System
  • Fuel Cap Lock
  • Fuel Additives
  • Fuel System Cleaner
Monitoring
  • Fuel Gauge
  • Fuel Consumption Meter
  • Fuel Range Calculator
Maintenance
  • Fuel Filter Replacement Kit
  • Fuel Pump Repair Kit
  • Fuel Injector Cleaner

Maintenance

Service interval
Every 7,500 miles or 12 months
Service Items
  • Inspect Fuel Lines
  • Replace Fuel Filter
  • Check Fuel Pump Pressure
  • Clean Fuel Injectors
  • Inspect Evaporative Emission System
Maintenance Notes
Use only recommended fuel type for optimal performance.

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Bumper to Bumper
Powertrain Warranty
Miles: 60,000
Years: 5
Coverage: Engine and Transmission
Emissions Warranty
Miles: 80,000
Years: 8
Coverage: Catalytic Converter and Sensors
Corrosion Warranty
Miles: 100,000
Years: 6
Coverage: Perforation from Rust

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Automated Fuel Tank Molding
  • Precision Fuel Injector Assembly
  • Quality Controlled Fuel Pump Testing
Quality Control
Leak Test: 100% Tested
Pressure Test: Pass/Fail Criteria
Material Verification: Certified Materials
Sustainability Practices
  • Recycled Materials in Fuel Tank
  • Low-Emission Manufacturing
  • Energy-Efficient Production
Production Metrics
Annual Units: 150,000
Production Time: 5 hours per vehicle
Yield Rate: 99%

Service Information for Fuel Service

Maintenance and service requirements specific to the fuel system

7,500
12
  • Inspect Fuel Lines for Leaks
  • Check Fuel Pump Pressure
  • Test Evaporative Emission System
  • Inspect Fuel Cap Seal

Use only manufacturer-approved fuel additives.

15,000
24
  • Replace Fuel Filter
  • Clean Fuel Injectors
  • Inspect Fuel Tank for Damage
  • Test Fuel Level Sensor

Ensure proper disposal of old fuel filter.

30,000
48
  • Replace Fuel Pump if Necessary
  • Inspect Fuel Rails
  • Check Fuel Pressure Regulator
  • Perform Complete Fuel System Flush

Major service may require specialized tools.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the fuel capacity and type recommended for the 2021-Present Buick Envision?

The 2021-Present Buick Envision has a fuel capacity of approximately 15.8 gallons. It is recommended to use regular unleaded gasoline with an octane rating of 87 or higher for optimal performance. Using fuel with a higher octane rating than 87 will not improve performance but may be required for high-altitude driving or under extreme conditions as specified in the owner's manual.

Q2

What is the recommended maintenance schedule for the fuel system?

The fuel system should be inspected every 15,000 to 30,000 miles. Regular maintenance includes checking fuel lines for leaks, ensuring the fuel cap is properly sealed, and replacing the fuel filter every 30,000 miles or as specified in the owner's manual. Additionally, the fuel injector system should be cleaned every 60,000 miles to maintain optimal performance and fuel efficiency.

Q3

How do I replace the fuel filter on my Buick Envision?

To replace the fuel filter, start by turning off the engine and letting it cool. Locate the fuel filter under the vehicle, near the fuel tank. Use a filter wrench to loosen and remove the old filter. Install the new filter by hand tightening it in a clockwise direction. Ensure all connections are secure and check for leaks before starting the engine. Consult the owner's manual or a certified technician for further guidance.

Q4

What are common issues with the fuel system and how can I troubleshoot them?

Common issues include poor fuel economy, difficulty starting the engine, or a check engine light due to a faulty fuel sensor or clogged fuel injector. To troubleshoot, check the fuel cap for a proper seal, inspect fuel lines for leaks, and use a scan tool to identify any trouble codes. If issues persist, consult a certified technician to diagnose and repair the problem.

Q5

How can I optimize the performance of my fuel system?

To optimize fuel system performance, ensure regular maintenance as specified in the owner's manual. Use high-quality fuel with the recommended octane rating. Avoid aggressive driving and maintain proper tire pressure to improve fuel efficiency. Additionally, avoid driving with an overly full fuel tank and address any issues promptly to prevent long-term damage to the fuel system.

Factory Service Resources

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

2021 Buick Envision Service Manual

Coming Soon

Comprehensive guide covering technical specifications, maintenance schedules, and repair procedures for the 2021 Buick Envision fuel system.

Technical Bulletin: Fuel System Updates

Coming Soon

Contains updates and technical bulletins related to the fuel system of the 2021-Present Buick Envision, including any recalls or software updates.

Buick Envision Parts Catalog

Coming Soon

Detailed catalog of genuine parts and accessories for the Buick Envision fuel system, including filters, injectors, and fuel lines.

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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