Up under dash or along left hand wall is a metal or plastic looking tube or box. It is attached to either wires or a plug in device. It serves the turn signals and four way flashers. It is replaced if at any time you note that signals do not work. Most auto shops or mechanics of will have said device. I call it a turn signal flasher device. Without the device, no flashing will occur. If this is the problem and not a wiring problem, a simple fix for sure. If it is a wiring problem, well....... Let me know if that is the problem. You can take rig to any mechanic and have them point out where that device is on your rig. Sure hope that's the problem and not more complicated.
