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Thank DJ for these diagrams! Does anyone know where on the truck the 8-way engine on/off connector is, that GEN 1 and 2 go through before the alt connectors? I wonder if I forgot to reconnect that when we dropped the cab :please:. I am looking at the diagram below

Wiring Diagram - 2005 Powerstroke 6L - F-Series - Dual Alt - Full.pdf
 
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Discussion starter · #22 ·
I haven't touched the connector that you are seeking, but itwould have to be in the driver side fender well area. It'd be crazy to be placed anywhere else.
 
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Sorry to butt in...Newbie to the site BUT I own a Fleet of Ford Trucks Ambulances, Wheelchair Vans all E Series and this site has helped me fix everything. Im working on a 2004 6.0 E350 Ambulance Dual Alternators. Has been a Crank No Start and working thru the issues.

I have codes for a Secondary Alternator Short/Fault. Whoever owned this Ambulance before me did a hatchet job on the Alternator connections. Question:

1-Are BOTH Alternators wired directly to the PCM?

2-I have an Org/Blue Wire from the Harness behind the top Alt which isnt connected to anything. What should it be connected to?

3-The 2nd Alternator is connected by this plug (See pic). Is this Correct?
 

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Discussion starter · #25 ·
Sorry to butt in...
You really should take this to its own thread. You won't get as much visibility hanging it on this one.
 
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