Right forum?? transmission leak issue

[dajn]

I think that it is fairly common. I had this issue with a ford van that I had. basically what happens is when they sit, the transmission fluid rises up into the tube which then needs to be sealed with the O-ring. when the vehicle is running, the fluid lowers and will not leak. so if it appears to be leaking while it sits then it is probably the O-ring. definately replace it.