4x4 problem
Thread Starter
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Mountain Pass
Joined: Jun 2009
Posts: 128
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4x4 problem
i have a 2006 F-250 5.4 3v 4x4, been trying to fix the problem thought i had it. whats happening is when the hubs are in auto and i switch it to 4 high the front doesnt engage i fixed a vacuum leak on it and replaced a hub assembly but all i can get to work is manual, the front axles seem to be engaged but they arent being driven any info would be helpfull, thanks 
Thread Starter
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Mountain Pass
Joined: Jun 2009
Posts: 128
Likes: 0
then manual locks work just not the auto, i pulled the hub out to see if it was the cause and i think the orange seal needs replacement it was all stretched and didn't fit properly so im going to go in and get a replacement if i can. the vacuum line all through is good and so is the solenoid, when i was switching it to 4 high it would engage the passenger side but not the driver side hub so it wouldn't work all together, correct me if im wrong im just learning so any info would be very helpful thanks 
Senior User
Joined: Oct 2006
Posts: 210
Likes: 2
From: Welland, On
Have you seen Guzzles page on Needle Bearing Lube? Maybe of some help. Guzzle has lots of good tips.
Welcome to guzzle's 4x4 Needle Bearing Maintenance Web Page
Welcome to guzzle's 4x4 Needle Bearing Maintenance Web Page
Junior User
Joined: Dec 2008
Posts: 53
Likes: 0
From: The Woodlands,TX
Have you seen Guzzles page on Needle Bearing Lube? Maybe of some help. Guzzle has lots of good tips.
Welcome to guzzle's 4x4 Needle Bearing Maintenance Web Page
Welcome to guzzle's 4x4 Needle Bearing Maintenance Web Page
Check the Needle bearings and all the vacuum lines, plus see if you have enough vacuum being pulled-need another person to help on this.
