What Causes the Loud Roaring Sound When Accelerating?

[LaJune]

The loud roaring sound when accelerating can be attributed to the following reasons: 1. Engine Oil: Overfilling the engine oil increases the instantaneous working resistance of the engine, which raises the rotational resistance of the crankshaft and reduces the engine's power output. Additionally, excess oil may enter the combustion chamber and participate in combustion, leading to oil burning, blue smoke emission, and increased fuel consumption. 2. Engine Oil Type: Counterfeit or substandard engine oil can cause significant damage to the engine. Using the oil type recommended in the maintenance manual is generally safe. 3. Engine: Overheating of the engine can result in a loss of power. If the engine operates for an extended period, causing the surface to overheat, the cooling system may fail. The first step in such a situation is to check the cooling system. If the cooling system malfunctions, it could lead to exhaust blockage, as the vacuum tube may break. In this case, steam or hot air may escape from the engine, producing loud noises.