I have a 2003 F 350 super duty 4wd and i managed to blow a curcuit or a fuse to the tail lights. turn, hazard , and break lights all work. went through the whole panel, cannot find a burned out fuse. the book shows no reference as to which fuse is for the tail markers. went to ford garage and believe it or not they couldn't tell me either. the panel is under the stearing wheel on this truck. my book doesnt show me either. anyone else had this problem? any help would be greatly appreciated. thanks

 

Flyn, open the hood, on drivers side right behind the air filter, you will find another fuse block. I do not have the information on which fuse in there, but look for a blown 15 or 20 amp. Another thought, the fuse blew for a reason-they don't just get in the fuse blowing mode one day like our better half's do on occasion. If you have a multimeter, before replacing the fuse, check the output side with the key off for resistance to ground. It should not be zero, it should be around 1 to two ohms.