1991 7.3 idi wiring help - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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Old 11-22-2010, 10:08 PM
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Angry 1991 7.3 idi wiring help

Please help if you can.

short version, 91 7.3l with after market turbo runs good, has a couple issues i'll get to eventually. just ought this truck a month ago.

Had problems starting and had th battery light on. Took to dealership verified alt was bad, which I figured! But I also thought there was a short or bad ground.

asked them to try to locate. Which they couldnt.
( Its reaqlly cold here right now or I would Have done it from the start)

Spent 8 hours in the dealership, with no help from them, so, changed alternator works great but found the short I thought I had.... Im in need of a wiring diagram for a 12pin connector male and female connoctor under the hood pass side next to the voltage regulator.

Im not sure what harness it is and it is badly melted, if anyone knows please help much appreciated... And please bare with me im new to forum thanks
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Old 11-23-2010, 04:09 AM
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I've had 5 of these trucks, and 4 of them had that connector burn out. I just cut the wires and buttspliced and heat shrinked them together. A couple of the wires going into it are fusable links, be carefull with them.
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Old 11-23-2010, 06:56 AM
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Thanks for the post. I guess that what I'll be doing then.
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