Turnsignals work sometime and sometimes don't but emergecy flashers work what is the problem

SOURCE: where is the turnsignal flasher & hazard flasher on this jeep

I believe both are located on the fuse block, driver side of steering column.

SOURCE: Where is the turnsignal flasher located 1991 nissan sentra 4dr

In your fuse box should be a large 1-2" square box inside the fuse box. Or under the dash board .

SOURCE: Where is the turn signal flasher located?

You more likely have a bulb that is no good. The next time your signals aren't working, pull over and check to see which bulb isn't working. Make sure the turn signal is on while checking. It should only be the left or right. Not both. Sometimes you can see the blown bulb with the hazards on depending on your model vehicle. Simply check the bulb thats not blinking for a tight fit. Then replace it if thats not the cure.