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Owns A Torsen
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I don't personally own an electrical diagram for either of the vehicles in the swap.
Looks like the big cable are in the right position, I would take a volt meter and make sure you have 12V at the starter. The small wire is kinda the "trip" wire and will need 12V when the key is in the start position.
I would separate that plug assy, ground the volt meter (once you have established there is indeed 12V to the starter via that cable from the fuse box) and see if when you turn the key forward you get 12V to the wire coming from the truck side of the plug. I bet you are not.
I would start there, you are real close to getting it to crank!
If you are sure that wire from the connector goes to the starter solenoid (you must be sure by checking with an ohm meter) you can feed 12V to the solenoid and it will crank.
Could be as simple as a bad solenoid if it doesn't crank when you feed it with 12V.
Alternately if you are getting 12V to the big wire on the starter, go under with a screwdriver and short from the hot wire on the starter to the little wire, it should kick. If it kicks, you aren't getting voltage from the key start position to the wire.
I'll poke around a little I have an electrical diagram for a 2001 Ranger should be similar to your 2003. I'm sure my 97 mountaineer diagram is vastly different than your 2000.
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01 XLT 2WD RC Steppie 3.0 auto Silver
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