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4x4 shift on fly problems

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Old Jul 12, 2012 | 08:11 PM
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4x4 shift on fly problems

My 2003 F250 SD has the electronic shift on the fly 4x4. A few months ago it up and quit. I checked all the vacuum lines and switches and relays and finally took it to my local dealer. After 2 days and $200 later I was told that there was a wire open both in the engine compartment and behind my dash. I was also told that when a jumper wire was run to engage the 4x4 the tcase motor would only lock into 4low and not back out. So my motor was shot. I have replaced the motor and reran the wire and still have nothing. Anyone have any ideas what else could be up?
 

Last edited by krewat; Jul 13, 2012 at 11:36 AM. Reason: Testing
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Old Jul 12, 2012 | 08:22 PM
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Welcome to FTE...hang around for a bit and we will get some answers.
 
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Old Jul 12, 2012 | 08:34 PM
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so whats the problem exactly? the electronic Tcase motor won't engage your 4x4??????
 
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Old Jul 15, 2012 | 02:38 PM
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When I turn the switch nothing happens. No relays no dash lights and the no motor action.
 
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