I just went to go flush my radiator and change my coolant because as i was driving home my 95 cutlass supreme 3.1 sl coupe was overheating. ive had problems with it leaking for a while now a real slow leak whenever i was driving for more than 20 minutes or so but it was different this time
trying to flush, when i went to open the drain plug i noticed it wasnt there. so i went and purchased a new drain plug and tried to put it in and it did not fit. i made sure it was the right part so its not that its the wrong one.
How would I go about putting in the new drain plug. something is obstructing it because it only goes in to just past the rubber o ring around the end of it. i also noticed that the coolant is leaking from the outside of the rubber o ring that is around the hole where the drain plug goes in
are there any suggestions as to what to do about the o ring and how to put the new drain plug in it is not a threaded one i have looked everywhere and cant find anything
here is a picture of the part it does not even look like that little metal piece sticking out of the side would even fit in the hole even if it wasnt obstructed