What happens if there is too much automatic transmission fluid?

[LeRylee]

Excessive automatic transmission fluid increases resistance to gear rotation. When the vehicle starts, the gears must overcome this fluid resistance, resulting in power loss. Additionally, gear agitation causes the fluid to foam, introducing air into the oil passages that reaches the clutch. When shifting to Drive (D), the presence of air between clutch plates prevents proper engagement, leading to clutch slippage, inability to move the vehicle, and accelerated clutch wear. Transmission fluid primarily serves lubrication and cooling functions, dissipating heat through the transmission housing and cooler. The fluid level in automatic transmissions must be precisely maintained - neither too high nor too low - as deviations can create quality hazards, causing premature transmission failures and abnormal operational issues.