Is It Necessary to Repair Transmission Abnormal Noise?

[LaneMarie]

Yes. The causes of abnormal noise in the transmission may include bearing wear or damage, insufficient or overly viscous lubricant causing uneven lubrication, and long-term failure to replace automatic transmission fluid. Below are detailed reasons for transmission abnormal noise: 1. Bearing wear or damage: When bearings wear out, the gap increases, leading to reduced precision in component fit. Damaged bearings cannot operate normally, resulting in abnormal noise and potentially causing damage to other transmission parts, escalating the fault. 2. Insufficient lubricant or overly viscous lubricant causing uneven lubrication: In such cases, the corresponding lubricant (grease) must be replaced; otherwise, it will accelerate transmission wear and shorten its service life. 3. Long-term failure to replace automatic transmission fluid: Not replacing the automatic transmission fluid for a long time causes it to thicken and lose effectiveness, reducing the protective layer between components and increasing friction, thereby accelerating wear on mechanical parts. In severe cases, it can damage components like the automatic transmission planetary gear set and differential. Damage to internal parts also leads to abnormal noise in the automatic transmission.