1997 Tracker Force 40 HP Wire Harness plug shorting out

This could potentially improve the electrical contact and address the connectivity problem you're experiencing.

Just be cautious not to damage the prongs or over-expand them*
I saw this someplace else. Maybe a month ago??

You'll probably get the same answers.

Yes expand the male ends.
Clean both of the ends and then use di-electric grease on the connections and seal it up so no water/dirt get in there.