I'm still having issues with my signal lights blowing a fuse. Here is what I've done.
1987 Ford E350 Motorhome
Replaced all light bulbs
Check and greased all sockets
Replaced signal light switch in steering column
It will go for a random amount of time and then blow the fuse. I thought I have it fixed by disconnecting the trailer hitch wiring, but after a few months it is doing it again. Backup lights work, emergency flashers work and breaks work. Just the signals blowing fuses.
Any ideas? Its driving me nuts and probably other drivers when they randomly stop working while traveling