Why does the car feel sluggish and powerless when the accelerator is pressed hard?

[HenryLee]

When a car feels sluggish and powerless when the accelerator is pressed hard, it is usually due to insufficient engine power. This is often noticeable during high-speed driving or when going uphill, especially under heavy loads. The engine's power is significantly inadequate, and when the accelerator is pressed to accelerate, the speed does not increase rapidly. The exhaust feels heavy, the driving is weak, and fuel consumption rises sharply. Common causes of reduced engine power in cars include the following: 1. Chassis malfunction: such as brake drag, clutch slippage, or low tire pressure; 2. Misfiring cylinders: a few cylinders not working can cause unstable engine operation and reduced power; 3. Insufficient cylinder compression: valve seat ring erosion, poor sealing or detachment, or weak valve springs leading to poor performance.