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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

4x4 system dead

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Old Sep 22, 2021 | 06:42 PM
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Post 4x4 system dead

Is there a test procedure for testing the transfer control system anywhere in this forum? I have a crude wiring diagram and have tested what I can and still have a dead 4x4 transfer case control.
It is difficult to search this forum for the help I need to test this system so any help would be greatly appreciated!!
 
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Old Sep 22, 2021 | 07:09 PM
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What vehicle are you working on?
 
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Old Sep 22, 2021 | 07:43 PM
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Originally Posted by MBZMAN
Is there a test procedure for testing the transfer control system anywhere in this forum? I have a crude wiring diagram and have tested what I can and still have a dead 4x4 transfer case control.
It is difficult to search this forum for the help I need to test this system so any help would be greatly appreciated!!
Electric or manual shift transfer case? If electric, check your vacuum lines. If manual check your linkages more information will help us, help you.
 
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Old Sep 22, 2021 | 11:09 PM
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Neither the transfer case nor the front axle uses vacuum on these trucks.
 
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Old Sep 23, 2021 | 06:37 AM
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Originally Posted by McLeod
Neither the transfer case nor the front axle uses vacuum on these trucks.
YUP. Cinfused myself on a different year.
 
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Old Sep 23, 2021 | 06:53 AM
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Originally Posted by kevinv10
YUP. Cinfused myself on a different year.
Well, at this point we don’t know what year or model truck. It could be posted in the wrong forum.
 
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Old Sep 23, 2021 | 07:08 AM
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1995 F150, automatic
 
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Old Oct 10, 2021 | 05:45 PM
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I found the test procedure on this forum, tested it and replaced the transfer case motor. It works perfect now!
Thanks to this forum!!
 
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Old Oct 10, 2021 | 05:58 PM
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Glad you got it. Had that issue on a Chevy one time, PITB to work on. Hope the new F250 keeps me maintenance procedure "ignorant" like my 1990 F150 did (meaning 1/4 million miles with mostly just tires/brakes/battery type replacements/problems.
 
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