Question about 2005 Ford F-150
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Posted on Jan 02, 2017
SOURCE: 2005 ford f150 4x4
Is your tyre's all the same size. Incorrect tyre's will change the racio from back to front and both driveshaft's are'nt turning at the same speed then it will grind. When trying to take it out of 4WD their will be preasure on the driveshaft's and this will leave if hard to disengage. Put it in 4WD drive it forward try the gearshift if it's hard to move then reverce a bit and try again it should come out easily. For all 4WD systems it is recumended thet the vehicle is reversed a few mitre's tto fully disengage the 4WD
Posted on Oct 07, 2009
they have elecric motors to press in the splines if there is a short or a blown fuse no power to hubs thus no locking check the fuses and make sure power is getting to the hubs
Posted on Mar 15, 2010
SOURCE: vacume hubs
IF this is a case that the IWEs will not disengage, it could be the IWE solenoid or the vacuum lines to the IWEs. Could also be a problem with the vent lines from the IWE ( the other vacuum line that runs up into the engine compartment, and just hangs there ).
This is the block diagram of the vacuum lines for the IWE ( not actual routing ). You can use a vacuum pump / gauge to see if the lines will hold vacuum. Don't be surprised if the vacuum lines test OK, there is a TSB on the IWE solenoid where it could ingest water, and allow water in the lines, which will not keep the IWE gears disengaged.
Block diagram of the IWE system
TSB on the IWE solenoid ( right click save as )
Posted on May 31, 2010
SOURCE: my 2004 f150 does not
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
This is either the IWE ( Integrated Wheel Ends ) solenoid or the vacuum lines / check valve / reservoir for the vacuum system
This is a block diagram of the IWE vacuum system
There is a TSB on the IWE solenoid for the 04 to early build 06 MY F-150s ( right click save as )
This is for the early build where water can get into the IWE vacuum system, causing weak vacuum at the IWE, and the spring is part engaging.
With the engine running, pull the IWE vacuum line ( not the vent line ) and measure vacuum, to make sure it is being applied. This is done with the Mode selector switch in 2WD and the engine must be running ( in park, take safety precautions, chock wheels, parking brake, etc )
Until you can get it fixed, pull the vacuum lines on the IWE ( make sure it is the vacuum line, not the vent line that runs into the engine compartment, and just hangs up there ).
This is so the IWE gear is not being ground down while driving it. The front axle is engaged when you do this, so MPG will suffer, but the truck is just pushing a dead front axle, the transfer case is not turning the front shaft. This is just to try to minimize further damage to the IWE gear ( which can cause a need to replace the IWEs ).
Posted on Dec 13, 2010
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