2.0 L, A/C, auto. Left turn signal blinks very rapidly. Have replaced both front and back bulbs on that side so it is not the bulbs. Front left blinker flashes very rapidly, rear left does not blink at all. Do you think it is the flasher? If so where is the flasher located on this Neon. Thank you.

 

The problem is with the rear bulb not working, and the flasher is blinking rapidly because of this. Remove the rear left bulb and check for corrosion in the socket which would be causing a bad connection to the bulb. If corrosion is not the problem, there could be a wire that has broken away from the socket or a break somewhere else along the path of the wire.