1990 Chevy 1/2 ton turn signal problems

[wsmm]

Went to drive my truck yesterday and the turn signals decided not to work. Both the right and left are affected. When I turn them on the arrow on the dash, front turn signal and rear turn signal will come on for a few seconds, without blinking just steady, and then the indicator on the dash and both the front and rear tail light will go out and stay out. The four way flashers work fine. Any ideas of where to begin, or what the problem might be? I'm leaning towards the flasher. If it's bad so I replace it with a standard or heavy duty flasher?
Thanks,
Bill

[Plowtoy]

Try the flasher. I would bank on it being the problem. Good luck

[dieselss]

Diddo on flasher

[maverjohn]

X3 the flasher,