I have a 2000 f150 with the electronic switch 4x4. I turn switch & 4x4 light comes on but doesn't go into 4x4 and I cant hear any clicking noises anywhere. Sound like the front vacuum actuator? any help is appreciated!
There is a motor on the transfer case that is what was wrong with mine. $125 from rockauto Sent from my iPhone using Tapatalk
And to make things better, Ford no longer sells them and if you find yourself with a broken one you'll get the pleasure of rigging something up yourself.