My drivers side front blinker doesnt work. But when I have my lights on the bulb is light up but the front blinker still wont work. This morning it was cold and it worked until my engine got warm. Then it didnt work any more.

What would cause this?

 

Todays its worked for alittle while than it wont. Whats going on? It works for a short time then it goes back to the front not working!!!!

 

socket,bulb,flasher,ground