i hav a 05 f250 with factory upfitter switchs they light up but i hooked a strobe light to one of the switchs and it doesnt come on all relays and fuses are good
go to autozone and get a heavy duty flasher and your leds will work fine i did this on my 94 chevy, 2001 dodge and my 2005 f250 just make sure you have the rite bulbs sould be a 3157
i hav a 2005 f250 with a 6.0 i lock it in 4x4 and it blow white blue smoke n was slow then it cleared n turned black n is slow on take off but the turbo spins n hauls ass after now when i first start it up it blows white blue n then turns to black the rest of the time wat do yall thank turbo or...