There are no more than two types of automatic truck transmission water: water tank oil, or water entering from the transmission vent cap, the transmission is not completely sealed. There are ventilation holes in the gearbox case. The pressure reduction and ventilation will generate pressure and heat when the gearbox is running at high speed. These pressures and heat need ventilation holes to discharge.
If it encounters water, it will suck water in, and the transmission oil pipe cannot be completely sealed. There will be a transmission oil cooling device on the box, which is the radiator at the connection of the oil pipe. The most common is that a broken radiator causes water to enter the transmission through the transmission tubing.
The truck transmission that enters the water is extremely easy to oxidize and generate rust. If these rusted parts are not replaced in time, the rust generated will further block the oil path, and lighter ones will cause shifting frustration and slippage. Seriously will cause the gearbox to burn out.
When driving, you must pay attention to more than two-thirds of the flooded wheels, the probability of entering the water is as high as 90%. When driving at high speed on the road with accumulated water, splashed water waves also easily enter the gearbox. not to mention the truck transmission
The sooner the water inlet gearbox is repaired, the lower the cost. If the water inlet is not repaired in time, the longer the time is, the greater the loss. Once the gearbox is rusted, a large amount of rust impurities will be generated. Circulation flow, flowing into the valve body and in the wall of the valve body, causing the valve body to wear out, causing pressure relief. Unstable pressure release oil will cause abnormal wear of the clutch friction plate, abnormal wear will cause the surface material of the pad to peel off, and then impurities flow into the valve body. Remove the valve body, this is called the death cycle.