Q: Transmission fluid leaking out overnight

asked by on February 29, 2016

I found a large puddle of transmission fluid underneath my car. I filled it and drove it a short distance, and it shifted fine in all the gears, including reverse. All of the fluid leaked out again overnight.

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Transmission leaks can come from either the pan gasket, output shaft seal, input shaft seal, or the cooler lines that take pressurized fluid through a heat exchanger in the radiator, or through its own dedicated cooler which looks like a small radiator. Before driving this car, I would suggest having a certified mechanic, such as one from YourMechanic, inspect your transmission for leaks before the lack of fluid causes a failure.

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