Join Our Ford Truck Forum Today

Document your Ford truck project here and inspire others! Login/Register to view the site with fewer ads.

1990 f250 7.5l

I have a wierd thing happening with my fuse box. I have dule tanks and i was checking the fuse box and notice that my auxiliar fuel tank switch had no fuse but it still works i put a fuse in it and my check engine, seatbelt, and brake lights came on and battery gauge was showing power being used but the key wasnt in the ignition and it wasnt turned on at all. What could be causing that?
 

Fellro

Moderator
Staff member
8,013
393
Iowa County, Iowa
Sounds like in some form you have something powering those circuits, likely why the fuse was pulled. Could be wiring, could be a bad switch.
 

Ford Truck Articles

Recent Forum Posts

Top