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Fast Flashers?

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Old Nov 22, 2006 | 11:11 PM
  #1  
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ftcav
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Fast Flashers?

I have a '94 F150 4x4 with 4.9l I6 and manual transmission. My turn signals have started acting funny. When I push the lever to turn left or right, the signal starts normally with the "blink - blink - blink" noise and at a normal flashing pace. Then the blink/click noise stops and the flashing speeds up. Can someone tell me what I need to fix?
 
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Old Nov 22, 2006 | 11:29 PM
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Replace the turn signal flasher first.
Does it doe the same thing with the emergency flashers?
The load in the circuit will affect the speed of the flashing - if you hook up trailer lights with a standard flasher (2 bulbs) the trailer will add a bulb and total 3 bulbs causing rapid flashing.
 
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Old Nov 22, 2006 | 11:34 PM
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I think his vintage has a separate flasher for the emergency flashing.
 
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Old Nov 23, 2006 | 12:08 AM
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My 1996 F250 did the same thing. I changed the flasher unit and it fixed the problem. Yes their is 2 seperate units on it, the flasher relay in on the backside of the fuse box. Crawl underneath the dash and you will see it. This will fix your problem.
 
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Old Nov 23, 2006 | 06:05 AM
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both flashers are the same, just switch them to see if that is the problem.
 
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Old Nov 23, 2006 | 06:59 AM
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I have electronic flashers in my crewcab... they flash at the same rate whether there are the body blinkers only, or trailers, or overheads attached, or all three.

And because I hate how they sound, I shoved a cotton ball into each of them and covered with electrical tape.
 
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Old Nov 23, 2006 | 10:02 PM
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Thanks!

There are two flasher units - one for the turn signals and one for the hazards. I switched them and the turn signals work again. I'll replace the bad one tomorrow. Thanks for the help.
 
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