78 f150 tail light wiring diagram. - Pirate4x4.Com : 4x4 and Off-Road Forum
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Old 09-01-2012, 06:45 PM   #1 (permalink)
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78 f150 tail light wiring diagram.

Hey guys i hadnt really searched for this much but here it is.

Im working on rewiring my tail lights and i pretty much started after the harness plug. I have the obvious wires figued out. Yellow left turn green right. The brown should be running lights.

I really need a diagram to explain some of the strange things that are happening.

Any help would be great thanks.
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Old 09-03-2012, 05:52 PM   #2 (permalink)
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Location: KS
Posts: 68

Do you have a manual for your truck?

Even the cheap Chiltons will have a diagram and flowchart to figure out those common electrical problems. Or maybe it is the factory Ford Vacuum and Electrical manual. Hmmm.

At any rate if you post up the "strange" problems maybe someone can help you. But it is really like a handful of wires back there, you and your test light should figure it out easily.
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