I have a 2010 f350 super duty, when i signal left it blinks really fast and i checked all the builds and they still work, (the signal light is part of the run lights so the run light is on but when i signal it doesn't blink) i changed out the bulb and still nothing happens any ideas?

Marvin

• 85242 Answers
• Posted on Jan 22, 2009

SOURCE: WE HAVE A FORD F350 SUPER DUTY

if u checked the fuse for the dash illumination and it is ok make sure the dimmer wheel by the headlight switch is rotated to on, if it is then replace the dash light dimmer switch.

SOURCE: I have a 2007 ford

No its not just a ford problem. I just had this same problem with my lights on a 99 chevy suburban. Turned out to be a little relay switch located under the dash to the left of the steering column. The repair was about $20.00 but it works well now. You can also go to a website called Auto Forum and post questions regarding auto problems that's what I did first. The Gm dealer was useless for getting any information. Good Luck

SOURCE: 1998 ford taurus left turn signal blinking fast

Replace the bulb that stays on and doesn't blink, if that doesn't solve the problem, let me know.

SOURCE: Right turn signal not working. Blinks very fast.

the fast blink means your bulb is burnt out back there.

SOURCE: The turn signals won't blink on my 1996 F350 but

sounds like the turn signal switch is defective

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