My navigator is leaking water. It look like it coming from above the transmission.

There is likely a plastic line or tee fitting that is leaking. It can also be a rubber heater hose. You can rent a pressure tester from the local auto parts store. This allows you to pressurize the system with the engine off and cool so you can look around for leaks without getting burned. Check that out, it may help you figure out your leak. Alex