Most likely, your turn sinal flasher is bad.You should find this under the dash near the steering column,.....1930fcoupe
bad bulb, relay, wiring, turn signal switch
You have a failed bulb on the right side.
Bad ground.
Normal cause is failed bulb.
As intermittent means occurring at irregular intervals, a possible sentence could be:Because of the rugged terrain, the signal from the telecommunications tower was intermittent, and the lost hikers had difficulty using their mobile phones to call for help.
Replace the turn signal flasher relay.
If the right one works,it might be a bad bulb or a bad ground.
Sounds like you need a new flasher.
Probably needs a turn signal flasher
check the bulbs one is burned out
Because you need a new bulb.
If the bulbs check good, replace the flasher relay.