1990 F350 tail light fuse

Can anybody tell me where the fuse is for the tail lights and dually fender lights on this truck ? I bought it with the wiring harness for the bed tore off . I replaced it ,and no power to the parking lights, and no fuse in the fuse box for it. HELP!!

does that truck have fuse boxes both in the cab and under the hood? If so it should be in the under the hood box.

It doesn't have one under the hood

Found the problem,the headlight switch isnt working properly..Pull it out and no running lights..push it back in real easy and find the sweet spot and they come on. Easy fix ,but it's been a pain in the azz

56Tbird wrote:Found the problem,the headlight switch isnt working properly..Pull it out and no running lights..push it back in real easy and find the sweet spot and they come on. Easy fix ,but it's been a pain in the azz

X2 about the pain I hate electrical shorts them headlight witches will do some crazy things for sure

Dan ford has a heavy duty switch harness to replace the factory one, if you look at the old switch it probably has been hot. I had to splice in the new plug with heavier wire before it will last. I went through this with the Red dually I had. Bout drove me nuts till my ford parts guy told me about it.

IDT-572 wrote:Dan ford has a heavy duty switch harness to replace the factory one, if you look at the old switch it probably has been hot. I had to splice in the new plug with heavier wire before it will last. I went through this with the Red dually I had. Bout drove me nuts till my ford parts guy told me about it.

I remember.....