Can Changing the Oil Solve the Problem of Water in the Transmission?
1 Answers
Changing the oil after water enters the transmission cannot completely solve the problem. If the water ingress is recent and still controllable, you can try a flush oil change, followed by multiple short-interval oil changes to mitigate the issue. 1. Reason: The oil and water have already fully emulsified. Even with a flush oil change, only about 80-90% of the contaminated oil can be removed. Residual water in the corners of the casing, valve body, and torque converter cannot be completely eliminated. 2. Internal Components: The transmission contains rubber-based components, such as pistons, which absorb water and deteriorate under the high temperature and pressure conditions inside the transmission. 3. Contaminated Transmission Fluid: Water-contaminated transmission fluid loses its lubrication and cooling properties, leading to increased internal mechanical wear due to high temperatures. The resulting metal shavings can enter the valve body, clog solenoids, wear down valve passage walls, and damage the torque converter's lock-up plates. Since the fluid circulates within the transmission, this creates a vicious cycle.