It sounds like you have an overload and not a direct short circuit.
Are you sure that the proper size fuse is being used?
Actually, give me the model and year, if it's a 1992 to 2002 I can look it up and tell you what size fuse it should be and everything that's on that circuit.
I have all the Ford/Lincoln/Mercury shop manuals and wiring diagrams for those years.
Hold on, I'll get the manual and tell you what I know...
Ok, it's a Ford Aerostar XLT. 1996
Fuse location 8
It doesn't say this controls the shifting from first gear in my book, but when the car won't shift to second gear, the fuse blows...don't know if it's the cause or effect.
We're using a blue 15amp fuse.
It still seemed to drive ok.
Other that it leaked out all it's power steering fluid. It pulls to the right and if I don't add fluid, it goes "thunkthunkthunk" and EEEEEEEEE.
And the ABS light keeps going on and off...