Two weeks ago I noticed that my turn signals we not working. I took it to the dealer, I am still under warranty, and the fuse was blown abd there was some sort of short in the fuse box. They replaced the whole fuse box. Now, one week later, the turn signal is again not working. Is anyone having a similar electrical problem? Only the turn signal is not working, lights, flashers, wipers, etc. are still working.

 

 

I would check the bulbs and replace if necessary, maybe a faulty flasher. has it been in a wreck? maybe you have a ground/positive pinched at light housing? being it's under warrenty I would let the dealer have another go at it, if you cannot locate any defects.
over and out
gseeders

 

Super D, I had the same problem in my 93 F250. Turned out to be the combination switch on the steering column that controls the wipers bright lights and the emergency flashers.