turn signals

Mac's 65

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I changed out the light bulbs on my 65 ply to LED and now i don't have turn signals could someone explain why?
 

Dana67Dart

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LEDs have very little load and the mechanical blinkers require a load to function.

There are LED compatible blinkers they have a ground wire that allows them to function .
 

Mac's 65

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LEDs have very little load and the mechanical blinkers require a load to function.

There are LED compatible blinkers they have a ground wire that allows them to function .
I'm not that sharp on electrical, could you explain what I need to do? do I need different bulbs or something to create a load?
 

Professor Fate

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I changed out the light bulbs on my 65 ply to LED and now i don't have turn signals could someone explain why?
Because your system wasn't designed to use LEDs. Aside from most LEDs being polarized (will work when plugged in in one direction, but won't when plugged in the other way) the flasher unit won't work when there's not enough of a load on it. Like Dana67Dart said, you'll need an LED compatible flasher unit. Get one for your 4 way flashers if you are equipped with them, too.
 

Dana67Dart

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I'm not that sharp on electrical, could you explain what I need to do? do I need different bulbs or something to create a load
Well you need to either replace the led bulbs with incondescent or you need to replace the blinker and flasher units with LED compatible units.

Standard (incondescent) flasher / blinker, note the guts have a contact points inside.
Screenshot_20230521-063405.png


Led compatible flasher / blinker, note the guts have a circuit board inside and the lead for a dedicated ground. No mechanical contacts.

Screenshot_20230521-063249.png



Don't be fooled into adding resisters to the circuits for the blinkers to work.

The entire reason I assume you added LEDs was to lighten the load on the wiring. By adding resisters you just increase the load on the wires till the stock units work and that defiets the purpose of the LEDs
 

Mac's 65

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Well you need to either replace the led bulbs with incondescent or you need to replace the blinker and flasher units with LED compatible units.

Standard (incondescent) flasher / blinker, note the guts have a contact points inside.
View attachment 1716092524

Led compatible flasher / blinker, note the guts have a circuit board inside and the lead for a dedicated ground. No mechanical contacts.

View attachment 1716092523


Don't be fooled into adding resisters to the circuits for the blinkers to work.

The entire reason I assume you added LEDs was to lighten the load on the wiring. By adding resisters you just increase the load on the wires till the stock units work and that defiets the purpose of the LEDs
thank you for the help, this old man just doesn't have it when it comes to electrical stuff. I will try and find where the flasher/blinker is plugged in and see about getting a replacement one for LED,s I replaced the lights for better visibility.
 

Road Hog

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Dana, I hear that the led compatible flashers will not make the "clicking " sound but then there are some that do make the clicking sound'. Can you confirm? Thanks!
 
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