'98 explorer leak

Gentlemen & ladies too, I have a leak which has developed between the bell housing & block on a 4 liter v6. The fluid seems to be oily, clear,and evaporates like water but leaves hardly any stain. The leak looks to be coming from a bolt that holds a elec. wire of some sort which is shielded which attaches at the split between the housing & block. I’m wondering if anyone has had or seen this before ? spyder Burleson,Tx

Check your coolant level