1989 chrysler new yorker dash and dome lights and fuse problems

You have a direct short. Take the bulb out of dome light, inspect the socket. Try putting fuse back in while bulb is out. If the fuse blows again, Id say it's in the wiring from the fuse box to the the switch. If the dome light fuse also covers other electrical things, such as lighter, check the socket at all points. You mentioned that other fuses were replaced as well? Which ones, and why did they blow? Sometimes it could be moisture entering your fuse box, or condensation near the computer, but is sounds more like a short. Could be as minor a a bad ground wire, or a chafed wire. While you are putting the fuse back in, it will help to keep your eyes looking around the fuse box for sparks as soon as the fuse goes in. You should also listen for that electrical snap. If this doesn't help, I'd suggest taking head panel down and follow and inspect the wires from dome down to the switch. Then from switch [ which could also be the cause ] to fuse box. look for hot spots, arcs, and bare spots. I hope this helps you out. keep me informed