Looking for some wiring help! - Ford Powerstroke Diesel Forum
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Old 08-29-2012, 06:02 PM
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Looking for some wiring help!

I was under the hood poking around checking fluids etc. and ran across an issue. I'm looking for some pointers...

Here's the issue... It's the passenger side battery looking from the passenger side of the truck.



The wires in the picture have gotten hot. The piece of black shrink wrap is hard and brittle and the rubber post cover had melted to the connection, you can see a little bit of red rubber on the connector below the black wrap.

The smaller wire with the black wrap looks like it's from the alternator, is that correct? The larger wire heading back and down disappears under the truck, where does it go? The wire leading to the front is the connection the to the driver side battery.

So... where do I start? What's the most likely cause and how do I trouble shoot it?

Thanks for the anticipated help!
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Old 08-29-2012, 07:34 PM
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Electrical heat is caused from resistance or a bad connection.

I am not sure on the destination of the smaller wire. Kinda thought the one on my 7.3 was for the gp's but could be wrong. Charge wire from alt is also likely.

Take that wire off and wire brush all surfaces of the connection. While things are apart and if you have a meter, check the resistance in the wires to see if they are damaged. When putting back together you can use dielectric grease to help with corrosion.

I think the big wire running down either goes to a starter solenoid (mine) or maybe right to the starter.
when you have the battery post terminals off, wire brush those and the connectors.
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Old 08-29-2012, 07:58 PM
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Sounds like tomorrows project!



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