SOURCE: Ford F150 front tires won't engage in 4 wheel drive
look on fire wall pass. side you will see 2 parts with vacume lines attached 99 percent of the time that is what went i had the same problem
SOURCE: 1997 ford f150 4 wheel drive not working
I'll assume that you have a 4x4 switch on the dash; check the shifting motor and plug on the transfer case, or the digital output from the GEM module which controls the 4x4 operation.
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: 06 F150 4 four wheel drive wont work
I have a 1994 ford f150, my 4 wheel drive keeps trying to engage by itself even without me touching the automatic hub button....at time you can even hear it engaging and disengaging by itself, the low range light even comes on (dimly)...what could be the cause? the transfer case motor looks good and so does the wiring.
SOURCE: 2001 ford f150 supercrew 4x4......4 wheel drive
There is a special sequence for that. Let me see if I can remember... Pull to a level surface, put the parking barake on, put the truck in neutral, shift to four-wheel drive, release the brake, shift to drive.
The computer waits for this sequence. It has been many years since I did this. If it doesnt work, call your dealer shop and they will tell you the correct sequence.
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