What Causes Abnormal Noises in Automatic Transmissions?

[LaTaylor]

Automatic transmission abnormal noises may be caused by water ingress that was not promptly repaired. The specific reasons for abnormal noises in automatic transmissions are as follows: 1. Long-term failure to change the automatic transmission fluid can cause the fluid to thicken. If the fluid loses its effectiveness due to prolonged use, components will lack a protective layer and rub directly against each other, accelerating mechanical wear. In severe cases, this can damage components such as the automatic transmission planetary gear set and differential. Damage to internal parts can lead to abnormal noises in the automatic transmission. 2. Low-quality or counterfeit transmission fluids have poor heat resistance and are prone to oxidation, leading to sludge and residue that can clog the automatic transmission filter and lubrication passages. This increases friction between internal components and may result in abnormal noises. 3. If water enters the automatic transmission and is not repaired in time, it can lead to a series of problems over time, such as oil leaks, abnormal noises, and 'jerking' symptoms.