Buick LaCrosse 2017-2019 2.5L Engine Specifications
Explore detailed technical specifications for the 2.5L engine in the 2017-2019 Buick LaCrosse. Learn about engine performance, maintenance requirements, and compatibility for repairs and upgrades.
Overview Specifications
This document provides detailed specifications and information about the 2.5L engine used in the 2017-2019 Buick LaCrosse. It is designed to assist enthusiasts, technicians, and owners in understanding the engine's features, performance, and maintenance requirements. The document is structured into major sections, each focusing on different aspects of the engine, including technical details, performance metrics, and maintenance guidelines. Use the search functionality to find specific information quickly, and navigate through the sections to explore comprehensive details about the 2.5L engine.
How to Use
Use the search bar to enter keywords related to the information you need. The search will highlight relevant sections and subsections, making it easy to locate specific details about the 2.5L engine.
Navigate through the document by clicking on the section titles in the table of contents. Each section is divided into subsections, allowing you to explore detailed information about the engine's specifications, performance, and maintenance.
Key Specifications
Displacement
2.5L (2457 cc)
Horsepower
197 hp @ 6300 rpm
Torque
192 lb-ft @ 4400 rpm
Fuel Economy
25 mpg combined
Compression Ratio
11.5:1
Available Specifications
Technical Specifications
This section covers the fundamental technical specifications of the 2.5L engine used in the 2017-2019 Buick LaCrosse. It includes details about the engine's design, dimensions, and key components. This information is essential for understanding the engine's architecture and capabilities.
Technical Specifications
This section covers the fundamental technical specifications of the 2.5L engine used in the 2017-2019 Buick LaCrosse. It includes details about the engine's design, dimensions, and key components. This information is essential for understanding the engine's architecture and capabilities.
Engine Design
- Inline 4-cylinder configuration
- Dual overhead camshaft (DOHC) design
- Direct fuel injection system
- Aluminum engine block and cylinder head
- Variable valve timing (VVT) technology
- Chain-driven camshafts
Dimensions and Capacity
- Displacement: 2.5 liters (2457 cc)
- Bore: 88 mm
- Stroke: 98 mm
- Compression ratio: 11.5:1
- Oil capacity: 5.0 quarts (with filter)
- Coolant capacity: 8.5 quarts
Performance Metrics
This section provides an overview of the 2.5L engine's performance metrics, including horsepower, torque, and fuel efficiency. These metrics are crucial for evaluating the engine's capabilities and comparing it with other engines in its class.
Performance Metrics
This section provides an overview of the 2.5L engine's performance metrics, including horsepower, torque, and fuel efficiency. These metrics are crucial for evaluating the engine's capabilities and comparing it with other engines in its class.
Power and Torque
- Horsepower: 197 hp @ 6300 rpm
- Torque: 192 lb-ft @ 4400 rpm
- Peak power achieved at high rpm
- Smooth power delivery across the rpm range
- Optimized for both city and highway driving
- Emissions compliant with EPA standards
Fuel Efficiency
- City fuel economy: 22 mpg
- Highway fuel economy: 31 mpg
- Combined fuel economy: 25 mpg
- Eco mode for improved fuel efficiency
- Start-stop technology for reduced idling
- Compatible with regular unleaded gasoline
Maintenance and Service
This section outlines the maintenance requirements and service intervals for the 2.5L engine. Proper maintenance is essential for ensuring the engine's longevity and optimal performance. It includes information on oil changes, filter replacements, and other routine services.
Maintenance and Service
This section outlines the maintenance requirements and service intervals for the 2.5L engine. Proper maintenance is essential for ensuring the engine's longevity and optimal performance. It includes information on oil changes, filter replacements, and other routine services.
Routine Maintenance
- Oil change interval: Every 7,500 miles or 6 months
- Engine air filter replacement: Every 30,000 miles
- Cabin air filter replacement: Every 20,000 miles
- Spark plug replacement: Every 100,000 miles
- Coolant flush: Every 150,000 miles
- Timing chain inspection: Every 60,000 miles
Common Service Procedures
- Diagnostic trouble code (DTC) scanning
- Throttle body cleaning
- Fuel system cleaning
- Belt and hose inspection
- Engine mount check
- Exhaust system inspection
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Engine Specifications
Overview
- Type
- Inline 4-cylinder
- Configuration
- Naturally aspirated
- Platform
- GM LKW
- Material
- Aluminum block and head
- Location
- Front, transverse
Dimensions
- Engine Length
- 20.5 inches (52.1 cm)
- Engine Width
- 24.8 inches (63 cm)
- Engine Height
- 26.0 inches (66 cm)
- Displacement
- 2.5 liters (2457 cc)
- Bore
- 3.46 inches (88 mm)
- Stroke
- 3.39 inches (86 mm)
- Weight
- 280 lbs (127 kg)
Materials
- Engine Block
- Aluminum alloy
- Cylinder Head
- Aluminum alloy
- Pistons
- Aluminum alloy
- Crankshaft
- Forged steel
- Valves
- Stainless steel
Features
- Fuel System
-
- Direct injection
- Electronic throttle control
- Variable valve timing
- Cooling System
-
- Electric water pump
- Thermostatic control
- High-efficiency radiator
- Ignition System
-
- Coil-on-plug ignition
- Knock control system
- High-energy sparks
- Emissions Control
-
- Catalytic converter
- EGR system
- EVAP system
- Lubrication System
-
- Oil cooler
- High-pressure oil pump
- Full-flow filtration
Safety Features
- Engine Protection
-
- Low oil pressure shutdown
- Overheat protection
- Misfire detection
- Emissions Safety
-
- OBD-II compliance
- Evaporative emissions control
- Catalytic converter protection
Comfort Features
- Noise Reduction
-
- Acoustic engine cover
- Balanced shafts
- Hydraulic engine mounts
- Vibration Control
-
- Dual-mass flywheel
- Active engine mounts
- Precision-balanced components
Accessories
- Belts
-
- Serpentine belt
- Timing belt
- Accessory drive belt
- Hoses
-
- Radiator hoses
- Heater hoses
- Vacuum hoses
- Sensors
-
- Oxygen sensor
- Crankshaft position sensor
- Camshaft position sensor
Maintenance
- Service interval
- 7500 miles or 6 months
- Service Items
-
- Oil and filter change
- Spark plug inspection
- Air filter replacement
- Coolant level check
- Belt and hose inspection
- Maintenance Notes
- Use synthetic oil for optimal performance and longevity.
Warranty
- Bumper To Bumper
- Miles: 36000Years: 3Coverage: Comprehensive
- Powertrain
- Miles: 60000Years: 5Coverage: Engine, transmission, drivetrain
- Emissions
- Miles: 80000Years: 8Coverage: Catalytic converter, onboard diagnostics
- Corrosion
- Miles: 100000Years: 6Coverage: Perforation from corrosion
Production Details
- Manufacturer
- General Motors
- Manufacturing Process
-
- Casting
- Machining
- Assembly
- Testing
- Quality Control
- Dimensional Checks: CMM measurementMaterial integrity: X-ray inspectionPerformance Validation: Dyno testing
- Sustainability Practices
-
- Recycled aluminum usage
- Closed-loop water system
- Waste reduction initiatives
- Production Metrics
- Units Per Day: 500Defect Rate: 0.1%Energy Efficiency: 85%
Service Information for 2.5l engine Service
Maintenance and service requirements specific to this component
- Oil and filter change
- Inspect belts and hoses
- Check coolant level
- Inspect spark plugs
- Verify emissions system
Use synthetic oil for optimal engine performance.
- Replace air filter
- Inspect fuel system
- Check ignition system
- Test battery and charging system
- Inspect exhaust system
Ensure all connections are secure and free of corrosion.
- Replace spark plugs
- Inspect and replace timing belt if necessary
- Flush and replace coolant
- Inspect and clean fuel injectors
- Perform compression test
Critical to follow manufacturer's recommendations for timing belt replacement to prevent engine damage.
Common Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the 2.5L engine in the 2017-2019 Buick LaCrosse?
What are the technical specifications of the 2.5L engine in the 2017-2019 Buick LaCrosse?
The 2.5L engine in the 2017-2019 Buick LaCrosse is an inline-4 cylinder engine, producing 194 horsepower at 6300 rpm and 187 lb-ft of torque at 4400 rpm. It features direct fuel injection and variable valve timing, ensuring efficient performance. This engine is compatible with regular unleaded fuel and meets emissions standards for those model years.
Q2 What maintenance is required for the 2.5L engine?
What maintenance is required for the 2.5L engine?
Regular maintenance includes oil changes every 5,000-7,500 miles using 0W-20 synthetic oil. Schedule tire rotations every 7,500 miles and inspections of belts, hoses, and fluids annually. Replace the air filter every 30,000 miles and spark plugs every 100,000 miles.
Q3 How do I install or replace the 2.5L engine?
How do I install or replace the 2.5L engine?
Installation requires a lift, tools, and mechanical expertise. Drain fluids, disconnect electrical and fuel components, remove engine mounts, and extract the engine. Install the new engine, reconnect components, and refill fluids. Consult the service manual and consider professional assistance.
Q4 How do I troubleshoot common issues with the 2.5L engine?
How do I troubleshoot common issues with the 2.5L engine?
Check for low performance or overheating. Inspect coolant levels, air filter condition, and oil levels. Use a scan tool for error codes. Address issues like faulty sensors or coolant leaks promptly. Consult a mechanic if problems persist.
Q5 How can I optimize the engine's performance?
How can I optimize the engine's performance?
Regular tune-ups, replacing the air filter, using high-quality fuel, and checking for software updates can enhance performance. Avoid extreme temperatures and ensure proper cooling system function.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
2017-2019 Buick LaCrosse Service Manual
Coming SoonThis manual provides maintenance and repair procedures for the 2.5L engine.
Technical Bulletin - Engine Performance Update
Coming SoonContains updates for improving engine performance and addressing common issues.
Buick LaCrosse Parts Catalog
Coming SoonList of compatible parts for the 2.5L engine, including filters and belts.
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Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
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The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.
We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.
Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
- Always follow the manufacturer's recommended procedures and safety precautions.
- Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
- If you're unsure about any procedure, consult a qualified professional mechanic.
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