Why does my left turn signal blink fast?
My left turn signal blinks fast while I use it. I have replaced all of the lights so that is not the issue. Also when I turn my headlights on my left blinker light on the dash comes on and stays on. It is a manual switch for headlight. I am still able to use the left blinker, but it remains fast. When I turn the hazards on the left blinkers work at correct speed. Please help.
change FLASHER...check/clean bulb sockets/grounds...not hard and inexpensive.
What do you mean by change flasher? I will check all the sockets.
Did this fix your problem, I have the exact same symptoms. And when everything is off, and I am out of the truck, the left from marker/turn signal stays on.
It's a bad ground to a bulb socket. With no ground, power backfeeds through the bulb from parking lamp power.
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