What Causes the Hissing Sound During Engine Acceleration?
1 Answers
Engine acceleration hissing sound reasons are as follows: Engine abnormal noise: Solution: Engine abnormal noise indicates that the technical state of a certain engine mechanism has changed. It is mainly caused by excessive wear of some parts or improper assembly and adjustment. Some abnormal noises can even predict possible catastrophic engine damage. Therefore, when abnormal engine noise occurs, timely repair is necessary to prevent fault escalation. Transmission abnormal noise: Solution: The transmission has numerous components, making the causes of noise relatively complex. During analysis and diagnosis, pay attention to: Whether it's related to specific speeds - for instance, some planetary gear noises become particularly noticeable around 50Km/h. Whether it's related to certain gears - this is crucial for transmission fault diagnosis. If noise occurs in a specific gear, it's definitely related to components affecting that gear's power transmission; if all gears produce noise, it often indicates a constant-mesh gear shaft fault or insufficient transmission oil. Whether it's related to specific operations - actions like gear shifting, starting, sudden acceleration, sudden deceleration, and turning are all effective means for diagnosing abnormal noises. Among these, speed changes and direction changes are particularly important for rear axle fault determination.
