Buick LeSabre 1992-1999 Fuel System Specifications
Explore the detailed fuel specifications for the 1992-1999 Buick LeSabre, including fuel type, system components, economy, and emissions. Essential for maintenance and performance optimization.
Overview Specifications
This document provides detailed fuel specifications for the 1992-1999 Buick LeSabre. It is designed to assist owners, mechanics, and enthusiasts in understanding the vehicle's fuel system, requirements, and performance. The guide includes information on fuel types, consumption, efficiency, and maintenance tips. Use the search functionality to locate specific terms or navigate through sections for a comprehensive understanding of the LeSabre's fuel-related features.
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Key Specifications
Fuel Type
87 Octane Unleaded
City MPG
17-19 MPG
Highway MPG
26-28 MPG
Fuel Tank Capacity
18.5 gallons
Fuel Filter Replacement
Every 30,000 miles
Available Specifications
Fuel Types and Recommendations
This section outlines the recommended fuel types for the 1992-1999 Buick LeSabre, including octane ratings and any alternative fuel options. It also discusses the impact of using incorrect fuel types on engine performance.
Fuel Types and Recommendations
This section outlines the recommended fuel types for the 1992-1999 Buick LeSabre, including octane ratings and any alternative fuel options. It also discusses the impact of using incorrect fuel types on engine performance.
Recommended Fuel
- Regular unleaded gasoline with an octane rating of 87
- Premium fuel not required but can be used
- Avoid using diesel or ethanol blends above 10%
- Using lower octane fuel may reduce engine efficiency
Alternative Fuels
- E10 (10% ethanol) is acceptable
- E85 is not compatible with this model
- Flex-fuel models were not available in this generation
- Natural gas or propane conversions are not recommended
Fuel Consumption and Efficiency
This section provides detailed information on the fuel consumption rates and efficiency of the 1992-1999 Buick LeSabre, including city and highway mileage estimates.
Fuel Consumption and Efficiency
This section provides detailed information on the fuel consumption rates and efficiency of the 1992-1999 Buick LeSabre, including city and highway mileage estimates.
City Mileage
- Average city mileage: 17-19 MPG
- Varies based on driving conditions
- Heavy traffic can reduce mileage significantly
- Proper maintenance can improve city MPG
Highway Mileage
- Average highway mileage: 26-28 MPG
- Cruise control can optimize fuel efficiency
- Higher speeds may reduce mileage
- Regular tire checks improve highway MPG
Fuel System Maintenance
This section covers essential maintenance tips for the fuel system of the 1992-1999 Buick LeSabre, including fuel filter replacement, injector cleaning, and tank care.
Fuel System Maintenance
This section covers essential maintenance tips for the fuel system of the 1992-1999 Buick LeSabre, including fuel filter replacement, injector cleaning, and tank care.
Fuel Filter Replacement
- Replace fuel filter every 30,000 miles
- Clogged filters reduce fuel flow
- Signs of a dirty filter: poor acceleration, engine stalling
- Use OEM or high-quality aftermarket filters
Fuel Injector Cleaning
- Clean injectors every 50,000 miles
- Dirty injectors can cause misfires
- Use fuel injector cleaner additives
- Professional cleaning recommended for severe buildup
Search Specifications
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Component Specifications
Overview
- Type
- Unleaded gasoline
- Octane Rating
- 87 (minimum)
- Fuel Capacity
- 18.5 gallons
- Fuel System
- Sequential Multi-Port Fuel Injection
- Fuel Pump Type
- Electric, in-tank
Dimensions
- Fuel Tank Length
- 32.5 inches
- Fuel Tank Width
- 20.8 inches
- Fuel Tank Height
- 10.2 inches
- Fuel Line Diameter
- 3/8 inch (9.5 mm)
- Fuel Pump Pressure
- 41-47 psi
- Fuel Filter Length
- 4.7 inches
- Fuel Filter Diameter
- 2.3 inches
Materials
- Fuel Tank
- High-density polyethylene
- Fuel Lines
- Nylon with synthetic rubber coating
- Fuel Pump
- Brushed DC motor with stainless steel components
- Fuel Filter
- Pleated paper element with steel casing
Features
- Fuel Delivery
-
- Sequential fuel injection
- Returnless fuel system
- Electronic pressure regulator
- Integrated fuel level sensor
- Emissions Control
-
- Evaporative emissions system
- Charcoal canister
- Fuel tank pressure sensor
- Vapor recovery system
- Safety Systems
-
- Rollover valve
- Impact-activated fuel shutoff
- Fuel leak detection system
- Vapor containment system
- Performance Features
-
- High-flow fuel pump
- Optimized fuel rail design
- Precision fuel injectors
- Quick-start fuel delivery
Safety Features
- Crash Protection
-
- Impact-activated fuel pump cut-off
- Reinforced fuel tank protection
- Flame arrestor in fuel filler neck
- Fire Prevention
-
- Fuel system overpressure protection
- Automatic fuel line shutoff
- Flammable vapor containment
Comfort Features
- Refueling
-
- Easy-access fuel filler
- Locking fuel door
- Automatic fuel nozzle shutoff
- Driving
-
- Smooth fuel delivery
- Consistent fuel pressure
- Quiet fuel pump operation
Accessories
- Performance
-
- High-flow fuel filter
- Fuel pressure regulator
- Upgraded fuel pump
- Maintenance
-
- Fuel system cleaner
- Fuel injector cleaner
- Fuel stabilizer
- Monitoring
-
- Fuel pressure gauge
- Fuel level sensor
- Fuel economy meter
Maintenance
- Service interval
- 30,000 miles or 24 months
- Service Items
-
- Fuel filter replacement
- Fuel injector cleaning
- Fuel system inspection
- Fuel pump performance check
- Evaporative emissions system test
- Maintenance Notes
- Use only unleaded gasoline with minimum 87 octane rating. Avoid using fuel additives unless specified by manufacturer.
Warranty
- Fuel Pump Warranty
- Miles: 36,000Years: 3Coverage: Parts and labor
- Fuel Tank Warranty
- Miles: 50,000Years: 5Coverage: Manufacturing defects
- Fuel System Warranty
- Miles: 50,000Years: 5Coverage: Major components
- Warranty Terms
- Warranty coverage applies to original owner and vehicle use within United States. Does not cover damage from improper fuel use or aftermarket modifications.
Production Details
- Manufacturer
- Delphi Automotive Systems
- Manufacturing Process
-
- Injection molded fuel tank
- Automated fuel line assembly
- Precision fuel pump calibration
- Automated fuel system testing
- Quality Control
- Pressure Testing: 100% fuel system leak testingMaterial inspection: X-ray and ultrasonic testingPerformance Verification: Flow rate and pressure calibration
- Sustainability Practices
-
- Recyclable fuel tank materials
- Low emissions manufacturing process
- Water-based coatings for fuel lines
- Production Metrics
- Daily Output: 850 unitsDefect Rate: 0.02%Time To Manufacture: 2.5 hours per complete fuel system
Service Information for Fuel System Service
Maintenance and service requirements for the Buick LeSabre fuel system
- Inspect fuel lines for leaks
- Replace fuel filter
- Check fuel pump pressure
- Test fuel injector performance
- Inspect fuel tank for damage
Use only OEM or equivalent fuel filter for replacement
- Perform fuel system cleaning
- Check evaporative emissions system
- Inspect fuel tank straps
- Test fuel level sensor accuracy
- Check fuel filler neck condition
Replace any worn fuel system components during this service
- Replace fuel pump if necessary
- Inspect and clean fuel injectors
- Check fuel pressure regulator
- Test complete fuel system integrity
- Replace fuel tank if compromised
Consider preventive replacement of aging fuel system components
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the fuel system in a 1992-1999 Buick LeSabre?
What are the technical specifications of the fuel system in a 1992-1999 Buick LeSabre?
The 1992-1999 Buick LeSabre features a fuel-injected engine with a fuel tank capacity of approximately 17.7 gallons. The fuel system includes a fuel pump located inside the fuel tank, fuel injectors, and a fuel pressure regulator. The system operates at a fuel pressure of around 40-50 PSI, depending on the engine model. The vehicle is compatible with unleaded gasoline with an octane rating of 87 or higher.
Q2 What are the recommended maintenance requirements for the fuel system?
What are the recommended maintenance requirements for the fuel system?
Regular maintenance for the fuel system includes inspecting fuel lines and connections for leaks every 12,000 miles, replacing the fuel filter every 15,000-30,000 miles, and cleaning the fuel injectors every 30,000 miles. Additionally, the fuel cap should be checked for a proper seal to maintain fuel pressure and prevent evaporative emissions.
Q3 How do I replace the fuel pump in my 1992-1999 Buick LeSabre?
How do I replace the fuel pump in my 1992-1999 Buick LeSabre?
To replace the fuel pump, start by relieving the fuel system pressure by disconnecting the battery and letting the engine run until it stalls. Remove the fuel tank by lowering it from the vehicle, then disconnect the electrical connector and fuel lines from the pump. Install the new pump, ensuring all connections are secure. Reinstall the fuel tank and reconnect the battery. Turn the key to the 'on' position to prime the fuel system before starting the engine.
Q4 What are common issues with the fuel system and how can I troubleshoot them?
What are common issues with the fuel system and how can I troubleshoot them?
Common issues include low fuel pressure, faulty fuel injectors, or a clogged fuel filter. If the engine hesitates or stalls, check the fuel filter and replace it if necessary. If the fuel pump is not working, you may hear a whining noise or the engine may not start. Use a fuel pressure gauge to test the system pressure and compare it to the specifications in the service manual.
Q5 How can I optimize the performance of my fuel system?
How can I optimize the performance of my fuel system?
To optimize fuel system performance, ensure the fuel filter is clean or replaced regularly, use high-quality gasoline with the recommended octane rating, and avoid driving on low fuel to prevent sediment from entering the fuel lines. Additionally, regular tuning of the engine and fuel injectors can improve fuel efficiency and 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.
1992-1999 Buick LeSabre Service Manual
Coming SoonComprehensive service manual covering diagnostics, maintenance, and repair procedures for the fuel system and other components.
Fuel System Technical Bulletin #99-12-001
Coming SoonTechnical bulletin addressing common fuel system issues, diagnostic procedures, and repair recommendations.
Buick LeSabre Parts Catalog
Coming SoonDetailed catalog of genuine parts for the 1992-1999 Buick LeSabre, including fuel system components.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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