The right front bulb is probably burned out.
Flasher relay is defective.
Sounds like a weak turn signal flasher
You may have a "ground loop" problem on the left turn signal. Check the ground wire at the front and rear signal bulbs.
You know a turn signal has burnt out when the light on the dash flashes very slowly, or just stays on until you cancel the signal. I don't think there is any way to know that it is about to burn out.
1997 and earlier models: With out starting the engine, turn the ignition key on, off,on, off, and finally on. The check engine light on the dash will begin to flash. The light will flash the first number of the first digit pause and flash the number of the second digit. Example:Five flashes, pause,three flashes= Code 53 PCM failure or Code 54 no cam shaft position sensor signal from distributor etc, etc.Or most auto zones will do it for free.
a bulb is out
usually means you have a turn signal bulb in the front or rear burnt out.
It is located in the fuse box under the plastic cover at the bottom of the dash. Make sure you don't have any burned out bulbs, as sometimes that will cause the others not to flash.
it means get your brakes fixed xD
a dash signal means through
If you put the left turn signal on and it flashes quicker than it does if you put the right turn signal on I'm pretty sure one of the bulbs is out. Park your car with it running and the left turn signal on and walk around the car and see what isn't flashing that should be. Then you know what bulb to change, it should give you the exact bulb type/number/color in your owner's manual.
A fast flashing turn signal, on most any vehicle, is an indicator that a turn signal bulb is going out or has gone out on that side(i.e. front turn signal on passenger side flashing fast, check the rear turn signal bulb on passenger side.) This will cause the light on your dash board to flash fast as well. This is generaly a good time to replace all of the bulbs, turn signal, running lights, and break lights, as they are so cheap. Also check deck light or top break light if applicable for burn outs.