How to change a oil pump in a 95 Chevy Berretta
Its a little more complicated that just typing out some directions. It will require removal of the timing belt if its the 4cyl and the timing chain if its the 6 cyl and then resetting the timing once its completed. I would consider taking it to a shop if you haven't replaced a water pump in the past.
the oil pump is in the oil pan- if you can get that pan off without taking the engine out, you are golden-