Pontiac Problems? Ask a Mechanic for Answers ASAP
Hello, my name is Bobby. Thank you for the question. If it was a knocking or banging noise then it is quite possible that you may have had an internal failure that caused something to hit the block and form a hole. It is also possible that something came apart in one of the pulleys and hit the front cover of the engine and caused this. Did you plan on fixing this yourself?
That is typically what it is. This engine is notorious for that. You need to find the source of the oil leak first and that will more than likely point you in the right direction.
If it threw a rod then you are looking at a very expensive repair and depending on the rest of the car you may not want to put the money into it due to its age.