Why would both ESOF hubs stop engaging at the same time?
I apologize if this is a repeat. I thought I posted it 2 days ago but don't see it anywhere (I'm new here).
My ESOF has been working fine until recently but went to use it this week and the hubs don't lock. I can manually lock them, and did, and was able to use the 4wd many times this week as my road is flooded. Seems like if it was a vacuum line leak it would only affect one side? Might it be the solenoid? How do I check? Please use few acronyms as possible as this is my first diesel (2000 F250 7.3 200K). Also, I like the auto hubs and am not a serious off-roader so want to keep them. Better fuel mileage and less wear/tear on drive train. Thanks