LEFT TURN SIGNAL GOING HAYWIRE ??
 

MY LEFT TURN SIGNAL BLINKS THREE TIMES FASTER THAN THE RIGHT, I CHANGED BULB AND FLASHER , WHATS THE FIX ??

RE: LEFT TURN SIGNAL GOING HAYWIRE ??
 

Calm down on the caps!;) Also, posting what it is you are driving helps a lot in terms of diagnosing a problem. I will suggest generic checks below.

Have you checked all bulbs that blink in the system? Look at the right turn signal and what bulbs blink on that side, then check all of those bulbs on the left side. While you are checking the bulbs, pull the bulb out and check for corrosion in the sockets.

If that doesn't turn up anything, check for the presence of a trailer wiring harness tucked up under the back of the truck. If you find this harness, unwrap it and make sure that there are no wires touching each other. Wrap each wire individually at the ends, then wrap the harness back up and tuck it back into the frame if you have no use for it.