2003 Ford F350 Super Duty DRW SuperCab Logo
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steve rachford Posted on May 20, 2016
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Turn signals are flashing very fast all the bulbs are woking

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Dustin Mcdowell

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  • Contributor 12 Answers
  • Posted on May 20, 2016
Dustin Mcdowell
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I would get a new flasher,Hazard relay (couple bucks) and go from there

Brad Brown

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  • Ford Master 19,187 Answers
  • Posted on May 20, 2016
Brad Brown
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Have you installed LED bulbs? That would cause the issue.

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Related Questions:

1helpful
3answers

My left turn signal was flashing fast. I checked bulb in back left. Turn signal good but bulb below it was out. I changed that one but turn signal still flashing fast. all other bulbs look good. ??

If the front and rear bulbs flash fast also, replace the hazard switch or you could live with it. As they are working. If one doesn't work, check grounds. I just run a new ground, much easier than cutting open the harness to find the break.
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What part needs fixed when my turn signal blinker blinnks very fast and sometimes not at all.If I put pressure on the turn arm it will stop sometimes or clicking my high beams on or off sets it right

Flashing too fast means that at least one exterior bulb isn't working. IF its an intermittent problem, once bulb could not be making connection at times. next time its flashing fast, stop the car and look to see which bulb isn't working. Replace that bulb, clean the socket at the same time
0helpful
1answer

Turn signal and break light

Make sure all the bulbs are working in the turn signal. Some front turn signals will use two or more bulbs per side. If any one of these bulbs are burned out it will cause the turn signal to flash at a fast rate. It also could be a bad control lighting control switch a.k.a. multi-function switch.
0helpful
2answers

Right turn signal lights flash very fast

check to see if the front or rear bulb is burned out most of the time one bulb burns out causing a faster flash on that side.
0helpful
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LEFT TURN SIGNAL FLASHING FAST. i REPLACED BULB AND SAme problem. what do i do

you replaced a bulb are all the turn signals front and back flashing.
If not then you need to replace the other bulb.
If all bulbs flashing fast you need to replace the flasher relay ( under the dash ).
0helpful
2answers

Blinkers is flashing real fast. Cked fuses and that is not it . What else could it be?

check all the flasher bulbs if one is not working or is faulty the flasher will flash fast change one bulb at a time only,,,,if all the bulbs are good after testing them you need to change the flasher unit as its gone faulty
1helpful
1answer

Saturn Ion 2003 blinker is blinking really fast

fast flashing signals mean that one of the bulb are not flashing, usually a burnt out signal bulb. just turn on the signals and check for what bulbs don't flash. replace bad bulbs and then chack again.
1helpful
2answers

Left turn signal flashes fast

Sounds like a bad turn signal relay. located under dash on drivers side in fuse panel. If this does not fix the problem then you will have a loose or bad ground in the blinker system. Hope this helps. Good luck.
0helpful
1answer

1987 toyota camry s/w back left (driver's side) turn signal does not work, bulb and ground are good, front left signal works but flashes fast, rt side signal both working ok. when emg flasher is turned...

Problem solved, Since 3 of the 4 turn signals worked I did not fuse was a problem
but after checking the turn swithch, I pulleded out the fuse which looked ok, but when
I put it back in all the turn signal lights woked! Apparently just one part of the surface
of the fuse was corroded.

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