fast blinking signal

I have a 98 4dr blazer. my left turn signal blinks fast. the right one is fine and the flashers are fine. I have checked the fuses and they're fine. I changed the signal fuse under the glove compartment. None of this has worked. any other suggestions?

It usually means that you have a burned out bulb on the side that is blinking fast......

One of the bulbs may be bad, check for rust in the socket, add grease if needed.

thanks i'll see if this works