i all hopeing some one might be able to help i have a 1993 1600 s tempra and it has just started leaking coolant at a very fast rate i cant see it coming from any pipes it seems to be leaking at the back of the engine i jacked it up but still cant tell where its coming from my dad thinks its not the head gasket because the car starts fine and runs fine he did mention something about core plugs but i dont know where theese are to be found any help much appreciated