Why does the X-Trail not accelerate when stepping on the gas pedal?

[LeMary]

Here are the reasons why a car does not accelerate when stepping on the gas pedal: Engine or fuel pump failure: Fuel pump failure or a clogged fuel filter can also cause a decrease in engine power. Engine malfunction occurs. The power source is the combustion of fuel, and the engine is responsible for supplying fuel and converting chemical energy into mechanical energy. Clutch failure: Clutch slipping. Clutch slipping mainly manifests as weak driving force when accelerating, especially noticeable when going uphill. Fuel system failure: Engine fuel system. If the engine oil is insufficient for a long time, it can lead to insufficient power and increased fuel consumption in mild cases; in severe cases, it can cause piston knocking and mechanical damage to related connecting parts.