I've got a 1992 F-150 and today, while driving the power windows, radio, fan blower, spedometer, turn signals all quit working. I've looked at the fuse panel, and it doesn't seem to be all on a single fuse and I've also looked under the hood, and those fuses don't seem to be an obvious link. Also, the dome light does work, and it's on the same fuse as the radio.

Any thoughts would be appreciated.

Thanks!

 

check the connection of the power supply to the fuse block. some times they use a fused connector and those can blow out. if it looks black and charred or just funny then i would replace it. the first one to check is the one that goes from the battery to the engine bay fuse block. i'v replaced a few of them on various vehicles

 

check the ing switch se if it's coming apart that could cause all those problems at the same time.