Buick Verano 2012-2017 2.4L Engine Specifications

The 2.4L engine in the 2012-2017 Buick Verano is an inline-4 cylinder, 16-valve, DOHC engine. It produces 180 horsepower at 6700 RPM and 171 lb-ft of torque at 4900 RPM. The engine features direct fuel injection, variable valve timing, and is paired with either a 6-speed manual or 6-speed automatic transmission. It is compatible with regular unleaded fuel and has a displacement of 2.4 liters (146 CID). This engine is also used in other GM models, ensuring wide availability of parts and compatibility.

Regular maintenance for the 2.4L engine includes oil changes every 5,000 to 7,500 miles using 5W-30 synthetic oil. The coolant should be replaced every 50,000 miles, and the spark plugs should be replaced every 100,000 miles. It is also recommended to inspect the air filter every 15,000 miles and replace it as needed. Tire pressure should be checked monthly, and the brake system should be inspected annually. Following the recommended maintenance schedule ensures optimal performance and longevity of the engine.

To install or replace parts on the 2.4L engine, start by consulting the service manual for specific instructions. Ensure the vehicle is on level ground and apply the parking brake. Disconnect the negative battery terminal to prevent electrical accidents. Use proper tools and follow torque specifications for bolts and fasteners. For complex procedures like replacing the timing chain or water pump, consider using a hydraulic lift and a professional mechanic if inexperienced. Always drain the coolant and oil before starting major repairs to avoid environmental hazards.

Common issues with the 2.4L engine include low engine performance, rough idling, or decreased fuel efficiency. Start by scanning for trouble codes using an OBD-II scanner to identify specific problems. Check the air filter and fuel filter for dirt or blockages. Inspect the spark plugs for fouling and the coolant level for proper fill. If experiencing oil leaks, inspect the valve cover gasket and oil pan gasket. For more complex issues like misfires, check the ignition coils and fuel injectors. Always refer to the service manual for detailed diagnostic procedures.

To optimize the performance of the 2.4L engine, consider upgrading the air intake system for better airflow and installing a high-performance exhaust system to reduce backpressure. Regularly tune the engine with a performance calibration to maximize horsepower and torque. Use high-quality synthetic oil and ensure the engine is properly maintained. For additional performance gains, consider upgrading the ignition coils and spark plugs to high-performance units. Always follow manufacturer guidelines and ensure modifications comply with local emissions regulations.