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turn lights question?

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Old Sep 21, 2016 | 08:07 PM
  #1  
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skd91
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turn lights question?

Hey I am having an issue with the turn signals on my 1979 F800 dump truck.

I turn them on they start blinking slow then stop. Rev the motor and they will start blinking and increase in speed.

Anyone have any ideas?

Thanks!
 
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Old Sep 21, 2016 | 09:42 PM
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The flasher module is probably defective. Revving the engine increases system voltage and would seem to improve its performance, but definitely test it at nominal battery (not alternator) voltage.
 
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Old Sep 22, 2016 | 04:09 PM
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Now that you say that! last year I had an issue with the lights and I replace that thing. wonder if they go bad that quick???
 
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Old Sep 22, 2016 | 09:19 PM
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What is a "flasher module" .. where is it located?" I've never seen or heard of any such thing.
 
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Old Sep 22, 2016 | 09:35 PM
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Everything's a module now:

Flasher Modules | Truck-Lite

But I think that there truck just used a flasher:

536 by TRUCK-LITE - Signal-Stat, 6 Light Thermal, Aluminum Flasher Module, 12V, 2 Blade Terminals

Heck, it's now called a module too......
 
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Old Sep 22, 2016 | 10:29 PM
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Originally Posted by 85e150six4mtod
Everything's a module now:

Flasher Modules | Truck-Lite

But I think that there truck just used a flasher:

536 by TRUCK-LITE - Signal-Stat, 6 Light Thermal, Aluminum Flasher Module, 12V, 2 Blade Terminals

Heck, it's now called a module too......
I figured the member in post #2 was referring to the T/S flasher as a flasher module, but that's not what Ford called it.

Pic: Scroll down to basic part number 13350
 
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Old Sep 22, 2016 | 11:04 PM
  #7  
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I meant to call it the "thing-a-ma-jig module" or just the "thingy".
 
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