Blowing #16 wiper fuse just plugging it in

[Stevepotato]

2001 b4000. ripped the whole truck apart following wires visually and with a multi meter. about to just buy new washer pump/wiper motor/relays/mfs and truck. cant figure this one out. the fuse blows by just plugging it in and turning the key rwith the wiper switch off. jumped the motor and it works fine. relays look fine. wires look fine. switch seems to be fine. anyone out there have the answer?

 

[adsm08]

Plug a light bulb into the fuse socket and start unplugging things until it goes out, working backwards from the wiper motor. That will give you a good idea of where the short might be.

 

[Stevepotato]

right on, thanks. ill get at it when im off work.