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Old 07-06-2008
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wiring harness differences

can someone tell me the difference between the harnesses on a 99 3.o FF and a 01-03 4.o sohc? as in im swapping the engine in my truck possibly, and dont want to rewire the whole thing.
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Old 07-06-2008
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Quote:
Originally Posted by texasbullseye89 View Post
can someone tell me the difference between the harnesses on a 99 3.o FF and a 01-03 4.o sohc? as in im swapping the engine in my truck possibly, and dont want to rewire the whole thing.
The engine/transmission harness is completely different and you would need to swap it over with the donor engine. You will also need the donor's PCM and a compatible transmission.

The big differences are in the PATS, ABS, speedometer and charging system wiring. You will need to move several wires. Best bet is to get a Ford factory Wiring Diagram manual for each vehicle and start comparing. I get mine from "Lorie and Jeff" on eBay.
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Old 07-06-2008
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thanks bob.
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Old 07-06-2008
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Great link Bob, I just ordered one for myself!
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Old 07-06-2008
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Aye, Bob steered me also to Lorie and Jeff a few months ago. Great prices and fast shipping! Those manuals are great!
Thanks Bob!
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Old 07-21-2008
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hmmm. dragging my thread up. what about an older explorer (99ish?) from when they started using the sohc? would the PCM be different there?
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