What Causes the Engine to Feel Sluggish and Lack Power During Acceleration?

[McAthena]

Reasons for the engine feeling sluggish and lacking power during acceleration: 1. Carbon buildup issues: This includes carbon deposits in the cylinders, throttle body, spark plugs, and intake system; 2. Fuel system problems: Using an incompatible fuel grade can reduce the car's power output and performance; 3. Intake system issues: Air is one of the engine's power sources. If the air filter becomes clogged due to prolonged use without cleaning, insufficient air intake will result in an overly rich air-fuel mixture, reducing engine power; 4. Engine overheating: Insufficient engine oil, low engine coolant levels, or malfunctioning engine cooling systems can increase engine load, leading to poor heat dissipation, increased mechanical wear, and reduced engine power, resulting in sluggish acceleration.