What Causes the Hissing Sound When Pressing the Accelerator?

[LeilaniAnn]

The reasons for abnormal noise when pressing the accelerator are as follows: 1. Loose dashboard or console: During operation, the engine needs to draw in a large amount of air. If the air is not filtered, the dust suspended in the air will be sucked into the cylinder, accelerating the wear of the piston group and cylinder. Larger particles entering between the piston and cylinder can cause severe "cylinder scoring." The air filter, installed in front of the carburetor or intake pipe, filters out dust and sand from the air, ensuring sufficient and clean air enters the cylinder. 2. Clutch malfunction: Additionally, you can try pulling out the oil dipstick and checking if the abnormal noise persists when pressing the accelerator. If it doesn't, it might be a clutch issue. The turbocharger produces compressed air flow noise during operation. The higher the engine speed or the deeper the accelerator pedal is pressed, the louder the engine noise becomes. Press the accelerator gently and avoid pressing it all the way down suddenly, as this can cause such abnormal noise.