What Causes a Manual Transmission Car to Not Accelerate When Pressing the Gas Pedal?

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Manual transmission cars may fail to accelerate when pressing the gas pedal due to the following reasons: Fuel Pump Malfunction: A clogged fuel filter can also lead to decreased engine power. Engine Failure: The car's power comes from fuel combustion, and the engine is responsible for supplying fuel and converting chemical energy into mechanical energy. If the engine fails, the car won't accelerate even when pressing the gas pedal. Clutch Slippage: Clutch slippage primarily manifests as weak driving wheel power during acceleration, especially noticeable when going uphill. Engine Oil System Failure: If the engine oil is insufficient for a long time, it may cause reduced power and increased fuel consumption in mild cases. In severe cases, it can lead to piston knocking and mechanical damage to related components.