Hey guys.well i have a prerunner full.replacement bumper in my truck with a 36inch light bar.. I wired it straight to my original fog connection... Today i installed.my.52 roof.mounted light bar and ran it to my other side fog connection... They turn o with my fog switch inside.... So i turned them on and they were.good the n bamm both light bars out any help on what it.could.be fuse is good i think #27.. Its a 2007 f150 crew cab

 

Too many Amps for the switch and fuse... fog relay ?

 

Where is my fog relay

 

if there is one...it would be in the fuse box...

 

Wayyy to many amps for your fog light switch. Did you check the fuse?

 

Yea is it #27 5amp

 

Your 50 inch light bar is most likely a 288 watt unit. At 14 volts that equates to 20.5 amps. At 12 volts it equates to 24 amps. This is just the 50 inch unit by itself. Now factor in the 36 inch unit AND the fogs.

Do yourself the favor and redo the wiring. Give the light bars the power they need and grab power direct from the battery for each of them. You should have bought wiring harnesses for each of the light bars that came with a cheap on/off switch for each light bar. Use that. IF you didn't buy the harnesses then buy a couple of cheap switches and relays and wire them up to the battery for power. Mount the switches somewhere in the cab that is acceptable to you. This should alleviate the issues you are having.