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Short in wiring to tailgate window?

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Old 08-06-2013, 08:32 PM
Built-Ford-Tough91 Built-Ford-Tough91 is offline
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Short in wiring to tailgate window?

My 1991 Ford Bronco seems to have a short. I replaced the tailgate motor a few weeks back however almost two days after replacing it, the window stopped working again, so this leads me to believe I may have a short or broken wire. What would be the best way to run a new wire and replace the wire to eliminate the short/broken wire? Also could you provide a wiring diagram of this bronco and suggestion of the best way to replace it?
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Old 08-07-2013, 05:44 AM
b4hntn b4hntn is offline
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Welcome to the tailgate window club. It seems the most common area for a broken wire is between the tailgate and the body at the bottom of the bend beneath the rubber covering. Butt connector and split wiring harness fixed mine.
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Old 08-07-2013, 11:30 AM
Built-Ford-Tough91 Built-Ford-Tough91 is offline
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So do you believe this could be a result of opening the tailgate alot and putting too much stress on those wires?
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Old 08-07-2013, 12:25 PM
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BillyBob69 BillyBob69 is offline
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Not actually stress but just over time the bending of the wires they way they are routed will cause this. I ended up doing the same thing as b4hntn. Just stripped the broken area, twisted together, solder and heat shrink. Butt connectors work too.
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Old 08-07-2013, 01:06 PM
Built-Ford-Tough91 Built-Ford-Tough91 is offline
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Where would I be able to find a butt connector and wiring harness?
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Old 08-07-2013, 01:09 PM
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BillyBob69 BillyBob69 is offline
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The butt connector you can find at just about any hardware store or dept store in the hardware section. They are color coded by size and I believe it was the blue ones that will work.
Unless you want to replace the entire wiring harness, you wont need that. Just cut the current wire at the break, strip a little insulation off the ends, insert butt connector and crimp.
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Old 08-07-2013, 01:57 PM
Built-Ford-Tough91 Built-Ford-Tough91 is offline
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Thanks man, I really appreciate it!
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Old 08-08-2013, 04:29 AM
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If it's not too late, you may want to do some trouble shooting to see if that's actually your problem before deciding to cut wires that dont need to be cut. It's unlikely that you have a short from what you described, because that wouldnt be even temporarily fixed by putting a new motor in.

A short to ground causes things like blown fuses, tripped breakers and fires.

Have you tried pushing in hard on the upper left of the tail gate while you use the key from the outside?

Or checking voltage at the motor with the tailgate up? Making sure that the disconnects inside that are designed to prevent you from raising the glass with the gate open are OK? Voltage at the pigtail inside your left tail lamp or at the switch? Good switch? How's the circuit protection?
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Old 08-24-2013, 12:53 PM
Arbault123 Arbault123 is offline
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I am having a problem thats the same as this with my dads 89 bronco EB the window will only go up but not down we have power going through the switch when we hit the buttons on the switch both ways but when we hit the button for the down function it does nothing no click or anything
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Old 08-24-2013, 02:09 PM
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Quote:
Originally Posted by Arbault123 View Post
...problem thats the same...
Have you done any troubleshooting at all?

Steve83 has some incredibly useful information on getting these things to work.
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