Brake switch fuse keeps blowing

replace your brake pressure switch on the master cylinder and that should take care of your problem.

wingnut30129
Check you truck on Ford's site to see if you have this recall scheduled ( or completed ).
You are looking for :
recall 05S28. Description: Speed Control Deactivation Switch.

Next, do you have an aftermarket 3rd brake lamp / CHMSL ( Center High Mount Stop Lamp ) ? This could be on a Cap, or something like a line of fire.
If so, disconnect them, and try the fuse replacement again.

If you turn the key to the accessory position, put your foot on the brake, and remove the truck from park to neutral, and start the truck, does the fuse still blow ? ( your MY the shift interlock is the same circuit as the brake lamps ).

I Have the same problem with my 97 ford keeps blown fuse 15 amp,when I step on the brake pedal,to shift out of park it blows the fuse.can someone help me out what to look for.I replaced the switch on brake pedal that wasn't it.