Question about 2004 Ford F150
The IWE is operated by a common vacuum system. When you say does not work, not sure what you are getting at ( only 1 wheel locks into place, or neither ).
Could be you had the vent and vacuum lines reversed, and this did not keep the IWE gear pulled out and it rounded off on the one you did not replace.
Is the issue the front axle does not lock in, or does the drive shaft not lock in at the transfer case ?
Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.
When you get to this point, post back a comment to this problem with the info.
Posted on Nov 13, 2010
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Posted on Jan 02, 2017
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