why is my 1997 linc mark VIII keep bloing the 30 amp fuse which is under the hood? every time i turn on lights

i have replaced this fuse 10x in one day. keeps blowing. it controls the pw mirrors,pw,pwr locks,heated seats, and i think the dashboard lights and radio illumination. they are also not working. does anyone out there know what the prob could be. im hopoing its something simple and i can avoid going to an auto electirc shop and get taken for diagnostics and labor. your help is greatly needed and appreciated. thanks

Answer:

I'm gonna say you have a heating pad shorted out in the seat.try shutting off some of the accessories and see what happens, might be able to track it down yourself, might cost ya a few fuses.

Sounds like a dead short. The answer to a blowing fuse is not just replace it (x10??), you have to trace the cause and there could be many causes. for example: Has any part of the wiring been chafing on a sharp metal edge?

Well because you have a short. Find the Chiltons manual for your car. Find the wiring diagram and disconnect circuits one by one until the fuse stops blowing. Then you have to replace the wire or device that has shorted out. Yeah it is tedious and time consuming. If you have a Volt - Ohm meter you can save yourself a bunch of fuses. The resistance should be above .4 ohms to keep the fuse in operating limits. Otherwise throw money at it and have a pro do it!

You have a short somewhere between the head light switch and the balast for the head lamps. One way to diagnose this cheaply is to start with a bunch of fuses and start unplugging everything one at a time from the headlights back to the switch and see if it still blows a fuse. Whenever you unplug a connector and it does not blow a fuse, the short will be between the last two things you unplugged. I hope this helps.

You gotta be sheet stupid to replace the same fuse 10x in one day. The reason the fuse is blowing is because there is something drawing more than 30A of current on the circuit. Any one of those components can have a short in it. You got some work to do to figure out which one. It ain't gonna be easy to find and when you do, it ain't gonna be cheap to fix.