I got an 86 roc with a turn signal problem , I was getting no signals at all but had flashers.So I replaced the flasher now i have pass signals but no driv signals.Found the drivers front turn signal bulb on bumper wasnt working so i replaced the bulb still nothing.If i turn all lights on it works but as soon as you turn signal switch on it does not flash . Is it the socket the switch or the cam.any help is appriciated guys!!

 

I would definately check the turn signal switch itself. I had the same problem and now it works fine. You have to take the column apart, but you'll get good at it.