Not understanding completely, but if you just installed it with 7 quarts of fluid in it before you fired it, especially, but not always, if it wasn't in neutral, it just blew fluid out the vent. Makes a mess, but no harm done. If it had been running for awhile then started leaking, you have a different problem, seal, pump oring, converter, etc.

Pat

" The last official act of any goverment, is to loot the treasury" George Washington