My Haynes manual for my windstar does a surprisingly good job on the ignition switch, if you don't have one, pick one up for the taurus. It has pictures and diagrams.
I can only imagine that the switch should be fused. I don't know how long it takes before it burns out, but could it be that someone replaced a fuse with one that is rated heavier than it should be?
Refer to your owner's manual for what rated fuse should be where.
__________________
BroncoJoe19
2006 Alt Fuel Jeep (electric)
'98 windstar 3.8L
'99 Crown Vic 4.6L
'90 Full Size Bronco 5.0L
I'm not a professional mechanic, take my suggestions with a grain of salt, or a cup of coffee  If you found this post helpful, please click this  on the left of this post.
| 
