Hey grumps good to see you here again I thought maybe you got lost way out there in the boonies It could be a pressure plug on the side of the tranny,but I would have someone you trust put it in reverse while you have a look for the leak. I had one come into my shop with the same thing so I was going to whip it out and have a look but with the crossmember out the trans still won't drop down turns out he had just had a phone installed and they mounted it to the floor, you guessed it drilled self tapping screws right through the floor and into the tranny not once but about three times.We had a good laugh over that.
My guess would be your cooler is bleeding back to the sump when you let it sit for a spell . when you start it it blows out the vent tube because its over full. check the fluid level before you start it . Should be the same as when you shut it off.
-- Edited by slim on Tuesday 16th of July 2013 10:42:53 PM
sounds like when you are in reverse the engine is rocking in the opposite direction that it normally would while in drive, moving a trans line exposing a leak