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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Turning signal problems

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Old Mar 22, 2013 | 08:40 AM
  #1  
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Fastback460
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Turning signal problems

I took our 93 F-350 5.8L Flatbed Dually out yesterday, and when making a turn I noticed that the indicator light was not flashing when the turn signal was on(turning right or left). Then I put on the four-ways, and only the right one flashed.
So I turned them each on and got out to check the lights, and neither of the front turn signals work, turn on the four-ways and only the right side flashes.

Oh, and both taillights work fine.
Any help would be great.

Thanks in advance
 
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Old Mar 22, 2013 | 12:23 PM
  #2  
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Phy
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From: 8600 ft in Colo
I'd start with the multi-function switch...
 
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Old Mar 22, 2013 | 01:34 PM
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Fastback460
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Originally Posted by Phy
I'd start with the multi-function switch...
I don't know much about the turn signal wiring, so please let me know if this is a dumb question...lol
But if it is the switch wouldn't it also effect the taillights?
 
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Old Mar 22, 2013 | 02:06 PM
  #4  
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Phy
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From: 8600 ft in Colo
The taillight circuit doesn't go through it, but the brake lights do.
There's a lot going on in that switch. It controls the turn signals, emergency flashers, and juggles those with the brake lights. It's about the only place where all the various circuits come together.
 
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