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Classic Mustangs Tech Forum

Technical discussions specific to 1964-1967, 1968-1970, and 1971-1973 Classic Mustang. Discuss all tech related to in-line six cylinder and V8 powered Vintage Mustangs here.

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Unread 03-18-2010   #1 (permalink)
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Default 1966 turn signal switch wiring

Just attached a new turn signal switch to the steering column. Haven't been able to get the stumps of the old wires out of the connectors. Do I HAVE to remove the old wires from the connectors and put the new wires in or can i just connect the new wires to the stumps of the old wires (that are already plugged into the connectors) using crimp connectors? Obviously, I'd connect wires of the same colors.
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Unread 03-18-2010   #2 (permalink)
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You just remove the ends of the old wires from the connector. Do it one at a time so you don't make any mistakes and you will be fine. They snap in and there is a little clip inside, they make special tools bit a small pick or scratch awl usually will work. If you look in the inside of the metal part of the plug you should see the clip when you tup on the wire. I don't know how else to explain it sorry.
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Unread 03-19-2010   #3 (permalink)
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I've been trying to get those wires out of the connectors using a really small screwdriver. Just won't come out. Honestly, it's technically easier for me to just connect the wires by a crimp connector if that would work.
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Unread 03-19-2010   #4 (permalink)
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Hello. I wouldn't do the crimp connector thing. That's never as a good a connection as the plug in connections. Actually, a very small flat-bladed screwdriver is exactly how I do it. Spin the wire around a little to make sure that it isn't stuck somehow. Gently tug on the wire will you depress the tab on the side of the wire plug end with the screwdriver and it will pop right out.
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Unread 03-19-2010   #5 (permalink)
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Do I apply pressure with the screwdriver to try to push the metal tab flush against the wire? Do I need to push directly against the tab or can I push on the opposite side of the wire? Thanks for you help, by the way.
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Unread 03-19-2010   #6 (permalink)
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Hi again. You push directly on the tab. It works like a little barb that hooks itself on the plug connector housing, preventing it from coming out. Here's a picture of that which might help. The yellow arrow is pointing at the tab on one of the wires. You just push that back in so that the wire can pull through.
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1966 turn signal switch wiring-switch-side-connector.jpg  
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Unread 03-19-2010   #7 (permalink)
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Oh.... so I need to pull apart the connectors so that I can get to the front of the wire where the barb is. How do I pull the 2 connectors apart?
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Unread 03-19-2010   #8 (permalink)
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Yep, pull the connectors apart and get a good set of reading glasses and then look at the male end of the connectors, there's a small tab that you push in and the wire comes right out. Been there and done that. Pretty straight forward.
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Unread 03-19-2010   #9 (permalink)
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Hi again. Here is what you should have in your car. The connector that is part of the underdash harness, the one that the turn signal switch plugs into, has two release tabs. This picture shows you one of them, and the other is on the opposite side. Just press those in and pull the two connectors apart. Even with the tabs released, the connectors will be stuck together pretty firmly. You have to kind of wiglle it some and walk them apart from each other.
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