When I try to engage the four wheel drive on my 2008 F-250 only the 4X4 light on the dash blinks and does not engage.
Not to insult your intelligence but if you are trying to shift into 4 low you must be stopped and the transmission must be in nuetral. 4 high can be engaged while driving at any speed below 45 mph. If 4 high is what your trying to do and the light blinks it could be the solenoid on your transfer case is seized up or broken. I have had my solenoid freeze up in the winter and through repeatedly turning it off and on it broke loose and started working again.
on a side note, if you have manual 4x4 instead of the electronic switch inside, you wil need to turn the hubs from free to lock
When I switch into 4 wheel drive the light just blinks whether it's 4 high or 4 Low
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