power on 1994 Ford Aerostar

when i try to start the van nothing happens no sound at all and the lights sometimes dont work

Asked by for the 1994 Ford Aerostar
This sounds like an electrical issue. Possibly a battery or bad connection at the battery. It's so hard to tell without inspecting the vehicle, so I suggest you get a shop to look at it for you, or if you are comfortable doing it, check the battery and cables. Try jump starting it and see if that helps too.