Quick ? - Auto Locking Hubs

[kcastner57]

As I stated in the title my auto locking hubs are not working. I have a 2006 f250 crew cab 4x4. I installed readylift 2.5 levelling kit this weekend and now the hubs are not locking automatically when i switch to 4x4..i can get out and lock them manually but they will not lock on auto. does anyone have any ideas why this would happen?? or has anyone dealt with the same problem?? thanks in advance for any help

[Lilpooh]

Originally Posted by kcastner57

As I stated in the title my auto locking hubs are not working. I have a 2006 f250 crew cab 4x4. I installed readylift 2.5 levelling kit this weekend and now the hubs are not locking automatically when i switch to 4x4..i can get out and lock them manually but they will not lock on auto. does anyone have any ideas why this would happen?? or has anyone dealt with the same problem?? thanks in advance for any help

Vacuum leak, either the line or the hub seals.

[kcastner57]

it worked fine two weeks ago before i put on the leveling kit on

[Lilpooh]

Originally Posted by kcastner57

it worked fine two weeks ago before i put on the leveling kit on

Things don't last forever, poop happens. Rubber hose lines get cracks, and seals fail.

[kcastner57]

very true..thanks for the help. any idea on cost? or is this something i could diagnose and fix myself?

[6.0kansaspowerstroke]

I have the same problem. would like to know that answer to.

[powerhoghp]

During the install the vacuum line could have been crushed or pulled off. Try checking here : http://www.dieselsite.com/ProductImages/4WDSOF.gif

[eberlestock]

I put a leveling kit it my company F150. A couple weeks later the auto hubs quit working. Took it to ford and they said a vacuum line broke. Ford warrantied it and it happened again. Took it to another shop and they found a broken vacuum line again. I told them it happened before so they looked a little deeper. It tuened out that at full lock on the steering, at max droup on a wheel, it would tear the line. They made me longer ones and its good now. They also may have damaged your lines during the install. If the let the axle droop too far during the install it could have torn your line.

[kcastner57]

I did the install myself and we did let the axle drop pretty low...i didnt even think about that. ill check the line tomorrow at work and hopefully it is just disconnected. thanks for he help guys