4x4 switch and locking hubs question - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 10-11-2010, 11:10 AM Thread Starter
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4x4 switch and locking hubs question

Hey all, was wondering if any one can help...

Here's my problem -

My 4x4 doesnt work when I switch it from 2wd to 4x4 (with the switch on the dash) but when I turn the hubs from auto to lock, and do the same thing it works fine - including 4low. and when i turn the switch to 2WD the 4x4 shuts off. Is this normal? why doesn't my 4x4 work in auto mode? and is it safe to drive around with the hubs on "lock" and the switch set to 2WD?

I've searched through some of the forums about this, but cannot find this unique problem.

Thanks for your time!
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post #2 of 5 Old 10-11-2010, 12:40 PM
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You have an issue with your hubs. Do a search on here, there's a million threads on it.

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post #3 of 5 Old 10-11-2010, 12:54 PM
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Bad hub seal, 4x4 vacuum switch (next to the vac pump on pass. side wheel well), or a vacuum leak in the line or fittings.

The air in the cabin will come out of all positions selected on the dash, right?


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post #4 of 5 Old 10-11-2010, 12:55 PM
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Vac leak somewhere....there are hundreds of threads about this. Keep on searching!

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post #5 of 5 Old 10-11-2010, 01:23 PM
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plus 1 more for Vac leak... but... my suggestion is to just get rid of those crappy auto hubs and get some manual hubs like the Warns..
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