The 4x4 High light stays on all the time on my 2008 Ford F-350. It is equipped with the 6.2 diesel, manual hubs, and manual transfer case.
SOURCE: 98 Ford F150 4x4 wont engage
I copied something that you might use because it was handy I know its not going to be exactly for you but it might get you fixed. Let me know if it helps or NOT please. gl dc
SOURCE: I have a 98 Ford Explorer 4x4 that is locked in 4x4 high
Sometimes the electric hubs are corroded and once they are engaged they don't release.
Another possibility (and I have never disassembled one) is the button you push to activate the 4x4 is stuck.
You might try to look in your owners manual for a fuse to the 4x4 unit. If you pull the fuse a stuck button would not matter.
SOURCE: 2005 Ford F150, 5.4L V8, 4x4; The transfer case
Encoder motor located on the transfer case is usually the problem. It is the motor that shifts the transfer case.
Testimonial: "Will look into this and report .Thanks so much"
SOURCE: 1991 F150 stuck in 4x4 low
chk the linkage under the truck for any foriegn objects. block the tires and have a friend put light pressure on the shifter while you lightly tap the linkage.
SOURCE: 2002 ford f150 4x4 manual transfer case vacum
The vacuum shift solenoids have power to one side of them at all times.
The GEM applies ground to them, to activate them, after the shift on the fly position confirm from the trans case.
The power to both should be on the White w/ Light Blue stripe wire.
Ground to them ( from the GEM ) is
2WD : Gray w/ Black stripe wire
4WD : Red.
The only TSB I know of is for the 04-06 MY trucks, for the IWE solenoids ( the kind without the water shield ).
Did you jack up the front end ( and support correctly ) turn the key to the run position ( do not start ), and shift into 4WD, and check the front drive shaft ?
If the shaft still turns, the problem is in the transfer case, if not you are looking in the correct place.
The GEM will not signal a vacuum solenoid until the transfer case has shifted into 4L or 4H ( 4 switches that are the return signal to the GEM ). Could be a problem with the connector on the transfer case ( think it is a 8 or 10 pin connector ) to the contact plate position switches in the trans case.
There is a manual front ale cable, but I would think you would want to confirm why the GEM is not signalling the shift solenoids, prior to replacing them
Posilock make a kit for the F-150
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
4X4
On
these issue, there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below: ---
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
-------------
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
On
these issue,there are few solved help links for troubleshooting the
issue easily.-------
Click
the link below:---
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
-----------
4X4 Truck makes roaring
noise in the front end?
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
Car will not go into 4WD
high or 4WD low?
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
4 wheel drive system will not disengage?
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
4WD light is flashing and
beeping? NO 4WD high?
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
2002 Jeep Wrangler: 4WD Idiot Light is ON?
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction
control switch will not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light
flashing and 4WD will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------
2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------
4x4 front differential will not engage the
axle on ford?
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------
4x4 will not engage on Ford F150?
http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html
-------------
Dodge Ram 4x4
light keeps flashing
4X4 LOW LIGHT
IS FLASHING ON DASH
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------
Ford 4x4 front wheels will not engage?
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------
These
details will help.
Thanks.
http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html
-------------
Car will not go into
4WD high or 4WD low?
http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html
--------------
No 4x4 light on dash?
http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html
------------
4 wheel drive system will not disengage?
http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html
----------
4WD light is flashing and beeping? NO 4WD
high?
http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html
----------
2002 Jeep Wrangler: 4WD Idiot Light is ON?
http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html
----------
Traction control switch will
not engage on 4WD High or Low
http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html
-----------
4WD light flashing and 4WD
will engage after few minutes
http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html
------------2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?
http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html
----------4x4 front differential will not engage the axle on ford?
http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html
-------4x4 will not engage on Ford F150?
http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html
-------------
Dodge Ram 4x4
light keeps flashing
4X4 LOW LIGHT
IS FLASHING ON DASH
http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html
----------Ford 4x4 front wheels will not engage?
http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html
-------------These details will help.Thanks.
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