New 3.0 V6 engine is all ready to go in my friend's '94 4Runner except there is a coolant leak coming from this hole. This picture is from the passenger side wheel well:
Its a threaded hole right behind the positive battery cable that runs to the starter, just next to the motor mount. Heres a closer picture. What fills this hole?? Is it supposed to be capped or are we missing something major?
Thanks again for the help.