Ok so first, I have pulled the lights out and checked bulbs and they are perfect. MY rear blinkers work and up until about a week ago so did my driver side front. I am sure this is an electrical issue, but the question is how to make sure its not the switch. I do not like working on electrical components and I don't want to mess things up any worse. Any help would greatly appreciated.

 

Year of the car in question?

 

1990 vert

 

might be a bad relay (the lil black box next to your fuses)? for me, my left didnt work sometimes. i just had to resolder a connection on that relay and it was good.