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4x4 problem

Old Feb 28, 2010 | 03:28 PM
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4x4 problem

have 2003 f 150 everything seems to work down to the front 4 wheel drive actuator,moves in an out.no 4 wheel drive ,input on if it's in the front dif. or could be transfer case issue.want to know best way to trouble shoot it thanks
 
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Old Feb 28, 2010 | 05:03 PM
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Is the front driveshaft turning?
 
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Old Feb 28, 2010 | 05:39 PM
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the front driveshaft locks in 4w drive,was wandering if Ican get to the parts in the diff. if need be without pulling a lot out. could not find a diagram yet online
 
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Old Mar 1, 2010 | 03:22 PM
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got to work today 4wd worked got home would not work 20 miles each way,driveshaft is locked when transfer case is shifted
 
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Old Mar 2, 2010 | 10:51 AM
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Try looking at the following post:

How to Troubleshoot and Fix F150 4X4 1997-2003

For quicker reference, it is a sticky post at the top of this forum page. Hope this helps.
 
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Old Mar 2, 2010 | 08:47 PM
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was wondering if the shift fork in the diff. can be put in without pulling the axles or hubs
 
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Old Mar 2, 2010 | 10:20 PM
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Hi!
My 4X4 was doing the same thing -- the 4X4 actuator was moving in and out, however, when I compared the movement to my work truck (same truck) it was not moving as far in and out or as smoothly -- this could be your problem. Try putting some lube in there and move it back and forth by had while the truck is off before pulling out your differential. If you do find its the shift fork, please add to my post mentioned earlier by Mish and note how you diagnosed and fixed it! -- Trying to get all the problems of the whole system in one post so people don't have to search anymore
Thanks!
 
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