i was pulling out of my driveway in my 98 f150 and under my dash on the driver side towards towards the center of the dash theres an electrical box that was buzzing. it kept buzzing for about 30seconds after i turned off the igniton then stopped. then noticed my left blinker stopped working.. even the green arrow indicator on the dash stopped working. can anyone offer any advise on this?

 

I would guess and say the flasher has gone bad and just needs to be replaced. It should be a small round or square box that pulls out . a couple of bucks or so...should fix your turn signal problem as well.

achtung

 

Also, be sure to check that you don't have bad bulbs.