Buick Envision 2016-2020 2.5L Engine Specifications

The 2.5L engine in the 2016-2020 Buick Envision is a naturally aspirated inline-4 cylinder engine. It produces 197 horsepower at 5,600 rpm and 192 lb-ft of torque at 4,400 rpm. The engine features a direct fuel injection system, variable valve timing, and is paired with a 6-speed automatic transmission. It is compatible with regular unleaded fuel and has an estimated EPA rating of 22 mpg city and 29 mpg highway. The engine is designed to meet stringent emissions standards and is suitable for the Buick Envision's compact SUV platform. Always refer to the owner's manual for specific details and compatibility information.

The recommended maintenance for the 2.5L engine includes regular oil changes every 5,000 to 7,500 miles using synthetic oil (0W-20). The air filter should be replaced every 15,000 to 30,000 miles, and the spark plugs should be replaced every 60,000 to 100,000 miles. Tire rotations should be performed every 5,000 to 7,500 miles, and the coolant should be flushed and replaced every 50,000 to 100,000 miles. It is also important to check and maintain proper tire pressure, inspect belts and hoses regularly, and follow the recommended maintenance schedule outlined in the owner's manual. Always use genuine or certified aftermarket parts to ensure optimal performance.

When installing or replacing parts on the 2.5L engine, ensure you have the proper tools and follow all safety precautions. Start by disconnecting the battery to prevent any accidental startups. For major repairs, consult a professional mechanic. Always refer to the service manual for specific instructions, torque specifications, and safety guidelines. Use genuine or high-quality aftermarket parts to ensure compatibility and reliability. After installation, test the system thoroughly to ensure proper function and performance. Never attempt repairs beyond your skill level, as improper installation can lead to engine damage or safety hazards.

To troubleshoot common issues with the 2.5L engine, start by checking the dashboard warning lights and using an OBD-II scanner to retrieve any error codes. Common issues include low engine performance, rough idling, or reduced fuel efficiency. Check the air filter, fuel injectors, and spark plugs for cleanliness or wear. Inspect the exhaust system for leaks or blockages. If the issue persists, consult the service manual or contact a certified mechanic. Always follow proper diagnostic procedures and safety guidelines when working with engine components.

To optimize the performance of the 2.5L engine, ensure regular maintenance is performed as outlined in the owner's manual. Use high-quality fuel and consider upgrading to a high-performance air filter. Keep the engine properly tuned and ensure the exhaust system is free from restrictions. Avoid excessive idling and aggressive driving, as this can reduce fuel efficiency and engine longevity. For enhanced performance, consider upgrading to performance-oriented spark plugs or a cold air intake, but always ensure compatibility and consult with a professional before making modifications. Regular tune-ups and inspections can also help maintain optimal engine performance.