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Is the key you're trying to start your truck with a Ford key? I think that most all of the newer Fords come with the special chip inside the key. I know that they use them on the cars, but I think they have these on the trucks too. Say a thief goes and breaks into your truck and tries to break the ignition column lock.... if he doesn't have the key the truck won't start. At least that's what the dealership told me. So if the key your wife and you tried/trying to use is a 'cut' key, I don't think you'll have any luck starting it.
You didn't mention whether this was an automatic or manual. Manual, I'd check the clutch pedal position switch. Auto look for a clutch switch jumper, or neutral safety switch malfunction. With key in crank position, you should have power on the small wire to the starter relay, red wire with blue stripe from ignition switch to clutch switch or jumper, white wire pink stripe from there to a connector or neutral switch the red/blue to the relay.
Just a question for the responders, he's getting a few cranks so why would it be one of these things? If one of these items were bad he shouldn't be able to turn it over at all from key. No?
I'm not 100% on how the chip in key thing works, but I would think that the car/truck would go to start but because it doesn't have the chip it won't start. Again, I'm not even sure if this is applicable to our trucks....... just a wild guess and we're still waiting to hear back from Koyote.
I would've said check battery cable connections but I assume the battery swap would've caught that. How about the connection between the relay and the solenoid. Clean off those connections. I'm new to diesels but bad battery connections is the problem at least half the time in a car with those symptoms.
By jumping to the selinoid, you are supplying 12+ volts directly to the starter. Apparently, your batteries are not providing this same level of voltage. Ford cars were notorious for corrosion at the cable-terminal ends as well as along the cable itself, under the insulation. Primarily on the negative side. (I presume the trucke use the same parts.)
All this to say, check your battery cables at both ends for corrosion. This would explain the lack of juice using the the trucks own system.
Also, may be a simple question, but did you charge your new batteies befor installing them?
Have been nursing my batteries for the past month or so. Wife went to start and got a couple of turns then nothing...
Fordtech- Not trying to argue but here it is. "Got a couple of turns then nothing". Means it turned over to me. Would be nice if he responded to the posts since he's the one looking for help.
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