I was driving at 60 or so last night, when i went to accelerate it did not do anything but send the rpm's up. I pulled over and put 3 qts fluid in, but it will not move. i shift through the gears but it does not grab anything. I did not see any fluid on the ground or in the engine compartment at all.. please tell me its an easy fix and NOT a new tranny... 2000 ford explorer 4x4 v8 5.0