What Happens When There Is Too Much Transmission Fluid?

[BenjaminRose]

Excessive transmission fluid can lead to the following issues: 1. Gear Shift Impact: Overfilling transmission fluid often introduces more air into the system. In severe cases, this can cause air blockage in the drain holes of the control valve, leading to poor drainage and resulting in gear shift impact. 2. Inadequate Oil Pressure: High fluid levels cause rotating components to come into contact with the oil, creating agitation. This easily introduces air bubbles into the fluid. When this aerated fluid enters the oil pump, it becomes difficult for the pump to maintain the required oil pressure. 3. Oil Leakage: Excess transmission fluid causes rotating components to contact the oil during vehicle operation. High-temperature, high-speed rotating parts can lead to fluid expansion and boiling, resulting in oil leakage. 4. Transmission Performance Issues: Overfilling transmission fluid can also negatively impact the transmission's efficiency and cooling capabilities.