Brent Dowsey

Help!!! When I hook my horse trailer up to my 2008 F-150 4x4 the running lights and inside trailer lights will not work.. The left and right blinkers, brake lights and hazzard lights all work??? Any suggestions?? When hooked to another truck everything works

ncbowhunter1969

Check your fuses. There are about 3-4 different fuses for trailer lighting in your fuse box, look at the owners manual for confirmation.

Imavol

Also check your 7 way plug adapter I had one of those go bad a couple of years ago and I liked to never figured out that is what it was. I had no idea those could go bad.