2004 Ford Explorer xtl. When the ignition is on, the 4x4 HIGH icon flashes for several times then it goes away. It does not go into 4x4 High or LOW. It is in 2WD at all times
Car is permanently in 2wd and cannot drive in the lightest snow fall. No traction whatsoever. It is worst than driving the Toyota Camry in the snow. Only the back wheels spin and the car will only flash 4x4 HIGH at times. If I try to select 4x4 AUTO or 4x4 LOW, the 4x4 HIGH icon comes on and then flashes again before disappearing.
We have checked the fuses. I think the switch on the dashboard is good. The Control Module is located in the PCM and that looks technical.
I do not know what to do, this is just bad.
The most common failure is the transfer case shift motor, try this: block the vehicle so it won't roll forward or back, Turn the key on, put the vehicle in neutral slide under the rig with a small hammer or crescent wrench and lightly tap the motor while someone pushes the 4X4 HI button, you should be able to hear the motor run and engage the transfer case then check the 4X4 switch lights, the 4X4 HI light should be on. If that doesn't work then you will have to do a voltage power and ground check to the transfer case motor to make sure it is getting power to do what the computer is telling it to do. HTH
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