Sometimes when i put my left turn signal on, the green arrow doesn't light up or i don't hear the blinking noise. I then push the blinker arm up slightly and the green arrow lights up and it starts making the turn signal flashing noise. Then the next time i turn on my left turn signal, the turn signal flashing noise starts clicking repeatedly instead of every 1 second or so like it does normally. I will push the turn signal arm back up and try again and then it works fine. Any idea what to check here?