Once the car starts, it will have a high pressure side, which im sure is responsible for your leak. You just need to get uner the car and search for. Chances are it's probably a line and not the pump, but it still could be anything. Not really any guess work about it. take 5 minutes, jack the car up and trace the leak. can't imagine it taking you more than another 5 to find it. Its not a complicated system.