Turn Signals not working on my Mustang II, need advice! - Ford Mustang Forum
 
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post #1 of 9 (permalink) Old 10-18-2010 Thread Starter
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Turn Signals not working on my Mustang II, need advice!

so i was driving along and i noticed my blinkers quit working, when i got home the fuse and the relay were fine, but i also discovered that now my running lights are much more dim and now when i push the the brak pedal the outside tail lights and the front running lights/blinkers go so dim its like they are barely visible. Does anybody have any idea what caused this?

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post #2 of 9 (permalink) Old 10-18-2010
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Check all of your grounds, and check all of your power wires you can get to, it sounds like you've got either a loose ground or a short.

post #3 of 9 (permalink) Old 10-30-2010 Thread Starter
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does anybody have any idea where any of this stuff is grounded at,
I have rolled around and rolled around trying to find something and can't
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post #4 of 9 (permalink) Old 11-02-2010
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Trace the wires back I know in the back there mounted on the license plate case and under the light. And in the front mine are on the radiator support or near the hood latch not sure what type of set up you got in yours. Hope you fix it
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post #5 of 9 (permalink) Old 05-06-2011
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Quote:
Originally Posted by Lamonte_1993 View Post
so i was driving along and i noticed my blinkers quit working, when i got home the fuse and the relay were fine, but i also discovered that now my running lights are much more dim and now when i push the the brak pedal the outside tail lights and the front running lights/blinkers go so dim its like they are barely visible. Does anybody have any idea what caused this?
Just was working on my 78 cobra II the other day after it has been sitting for a couple years and have a similar problem. On mine the right side signals are not working, left side seems to work normally. Also I do not have any brake lights. What did you find with yours? I have not had a chance to look at it yet but hoping to this weekend.
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post #6 of 9 (permalink) Old 05-07-2011
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The ground for the rear harness attaches with a hex-head bolt to the side of the tin cage for the rear latch assembly, and for the front harness about 4" down each side of the rad support.

The most likely culprit is bad/corroded metal/contacts in the taillight sockets, causing the circuit to hunt for ground in all sorts of strange places. Pull out the taillight sockets and see if wiggling the wiring or bulbs makes a difference (if it does, then you've found the problem)

If the sockets are bad, you CAN replace them individually, but you'll be fighting the same battle when the next socket goes. A guy active on the mustangii.net site (51degII) makes an upgrade taillight harness for about $100+shipping that will fix bad taillight sockets AND give a much better look when the lights are in use. I have one in my own King, and I have installed them in pretty much every II built at Forgottenpony Customs...

78 Rat Snake
74 Avocado Ghia
lotsa parts and nowhere to work with them...
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post #7 of 9 (permalink) Old 05-11-2011
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so I found the problem with the signal light, broken wire near the socket. Now I have realized that I have no brake lights either...
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post #8 of 9 (permalink) Old 02-18-2020
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I'm having the same problem and nerrowed it down to the directional switch underneath the steering wheel or the cylinder behind the actual lock cylinder inside the column! It's nothing that the ignition lock cylinder pushes into!
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post #9 of 9 (permalink) Old 02-18-2020
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The thing*** Not (NOTHING)
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