Want this question answered?
If your car won't move, your transmission is blown. If there is transmission oil underneath your car, you have a leak.
The better question is what is leaking transmission fluid?
Because your transmission has a seal that is leaking.
The output shaft seal has failed and transmission fluid is leaking by, and that would explain the transmission fluid appearing there.
Rear main engine seal or front transmission seals
You need to check the transmission gasket between the transmission pan and the body. If it's leaking you have to replace it.
why do toyota sienna transmission leaking after change a new transmission and ran 5000 miles?
Check the power steering and transmission fluids to make sure that they are at correct levels. If the leaking one is not low, then clean the areas where fluid is showing and keep checking to see where the leak is. Check all line connections in both systems for visible leaks.
fluid is a lubricant of transmission
If a transmission is leaking fluid, it is likely that a seal or gasket has failed. Replace the gaskets and seals and the leaking should stop.
Work needs to be performed. Also depends where it is leaking from. If pan is leaking just drain transmission fluid and install new pan gasket and refill transmission with fluid. If front seal leaking then you will have to pull transmission and replace front seal.
NO... They are 2 different seals. If the transmission seal is leaking then the fluid color will be RED that's leaking. If the rear main seal is leaking then it will be oil leaking from the engine and it won't be red.