What happens if there is too much automatic transmission fluid?
2 Answers
Automatic transmission fluid overfill symptoms: 1. Fluid level too high causing oil leakage; 2. Air intrusion during gear shifting leading to air blockage in control valve body drain holes, resulting in poor oil drainage; 3. Low working oil pressure causing bubbles in automatic transmission fluid entering the oil pump. An automatic transmission is a gear-shifting device that automatically changes gears based on vehicle speed and engine RPM, as opposed to manual transmissions. Common types of automatic transmissions include: hydraulic automatic transmissions, continuously variable transmissions (CVT), automated manual transmissions, and dual-clutch transmissions.
Oh, I've been driving an automatic transmission car for years, and overfilling the fluid is no small matter. When there's too much transmission fluid, the gears churn the oil, mixing in a lot of air and creating foam, just like soapy water. This foaming reduces lubrication performance, causing increased wear on critical components like gears and clutch plates. You might notice rough shifting or loud noises while driving. The oil pressure also becomes unstable, leading to transmission overheating, and in severe cases, internal damage or even leaks. A friend of mine had trouble starting his car and increased fuel consumption after overfilling once. I recommend regularly checking the fluid level with the dipstick to ensure it's between the marks, avoiding exceeding the MAX line. If you notice anything unusual, take it to a repair shop immediately. Proper transmission maintenance can extend its lifespan by tens of thousands of kilometers.
