left side turn signal will not flash .right side works fine and the 4 ways work fine also .all the lights come on when i turn on the left side but do not flash any idea of what is going on or how to fix it ??

I'm not sure if this car has two flashers or not. The newer cars seem to have just one, that does the hazard and turn signals. The 4 way flasher with work no matter if you have a bulb out. The 2 way won't work on one side if a bulb is out. I would check all the turn signal bulbs, I'm sure you have a bad one.

Bob

Same thing happened to me.

If all three signals on the left side (taillight, lower front parking light in the bumper, and the small square light on the front fender) do not flash, you likely have a bulb out somewhere on the left side. It could also be a bad ground or a bad splice on that side.