How to Determine if Water Has Entered the Transmission?

[DelClaire]

Determining whether water has entered the transmission can be done through the following methods: 1. Partial screw rusting: If some screws inside the transmission are rusted, it can be judged that the transmission has been slightly exposed to water, and the water content is not significant. 2. Solutions for excessive water ingress: If a considerable amount of water has entered, the extent can be determined by observing the color and viscosity of the oil-water mixture. For automatic transmissions severely affected by water, multiple components may need replacement, including gaskets, oil seals, friction plates, sprockets, and the transmission valve body. Additionally, the automatic transmission fluid and differential oil must be completely replaced. If rusted components are not replaced promptly, the resulting rust can further clog the oil passages, leading to issues such as gearshift jerking or slipping in mild cases, and in severe scenarios, it may cause the transmission to overheat and fail.