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Ford F-Series 4x4 Problems

75 messages,  Last post on Oct 29, 2009 at 9:11 AM

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What is this discussion about? Ford E-150, Ford F-250, Ford F-350, Transmission, Truck

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#46 of 75 2004 FX4 6.0 loosing vacuum by jdrle Nov 15, 2008 (7:51 am)
I just bought this truck for a great price, but when you shift into 4x4 with the a/c on blowing out the front vents, it looses vacuum and then blows out of the defrost vents. I was told it is probably the vacuum lines at the hubs. It does seem to engage into 4x4 and light comes on. If you turn the switch to 4x4 and 2wd back and forth a couple times it looses vacuum. As long as it is in 2wd the vents blow fine. It does recover after switching back to 2wd, takes a few minutes. Just want a second opinion. Replies to this message: frog12 (Nov 30, 2008 5:11 pm)
#47 of 75 1998 Ford F-250 by 1998truck Nov 30, 2008 (4:05 am)
I have had this truck for, this is the second winter season. Because the lock out hubs are not marked, I cannot remember which way to turn the lock out for , in 4-wheel drive and out of 4 wheel drive. These are also very stiff when I try to turn them. How do I keep them from becoming so tuff to turn ?
#48 of 75 Re: 2004 FX4 6.0 loosing vacuum [jdrle] by frog12 Nov 30, 2008 (5:11 pm)
Replying to: jdrle (Nov 15, 2008 7:51 am) J.D, I have pasted about five different vacuum devices on my '05 4X4. I still haven't found the right combination that will allow my auto-4X4 to lock in from the interior switch. They are all apparently linked into some logic chip/chips that require a computer programmer. It has cost me a LOT and I'm wondering what FORD's bright idea was on the whole set-up. Good luck...
#49 of 75 06' F150 change to Manual locking hubs by braggon Nov 29, 2008 (9:12 am)
#50 of 75 06' F150 change to Manual locking hubs by braggon Nov 29, 2008 (9:12 am)
Has anyone changed-out the auto-locking hubs for manual locking hubs on an electric shift on the fly truck. Any problems? Better MPG?
#51 of 75 4x4 light comes on but wheels don't turn! by ford_dude1 Dec 20, 2008 (5:15 pm)
hi, recently bought a 1998 ford f250 lariat, and i live in northern canada. i i went to use the 4x4 high the other day and the light comes on but the wheels don't turn. if i put in 4x4 low in neutral the light comes on and i can hear the 4x4 engage but still nothing. i've been told i have to lock the hubs manually but my front tires have a hub cap there isn't any dials there. am i missing something or is there a problem with it? any info would be awesome, i need this 4x4 to work, the truck is useless in the snow please someone help me lol   thanks, frustrated ford guy Replies to this message: hj25wmny (Jan 07, 2009 6:40 am)
#52 of 75 Re: My Truck will cycles in/out of Low 4wd [darrinb] by dbweaver Dec 21, 2008 (8:35 pm)
Replying to: darrinb (Oct 07, 2007 7:33 am) I have a '99 F250 that has the vaccum lock hubs. It did the same thing yours is doing. There is a yellow O-ring on the back side of the wheel bearing assembly on each front wheel. I cleaned them real good and replaced the O-rings. That fixed it for a while. They quit working again so I just lock my hubs in manually now. It was a pretty tough job for me to fix. I don't want to do it again. I don't think it takes much dirt or dust to interrupt the vacuum.
#53 of 75 80 250 front diff conversion by plowguy3 Jan 06, 2009 (7:06 am)
I have a 1980 f250 4x4 that I use for snow plowing,and I would like to change the front axle to a dana 44 straight axle. Has anyone done this? What year front axle did you use, pitman arm, and or steering box? any help would be greatly appreciated
#54 of 75 Re: 4x4 light comes on but wheels don't turn! [ford_dude1] by hj25wmny Jan 07, 2009 (6:40 am)
Replying to: ford_dude1 (Dec 20, 2008 5:15 pm) not sure if you found the answer to your problem but i will post anyhow. make sure you don't have to pop the covers off the front hub caps. on my f250 there was hub caps on it and the centers of the hub caps popped off to gain access to the manual lock outs. GL . Ben
#55 of 75 1997 ford f-150 4x4 problem by rummel Jan 16, 2009 (9:49 am)
I have no power at my 4x4 switch. I can manually put it in four wheel by taking the electric motor off the transfer case and turning the knob on the transfer case and locking in the front axle actuerator. All my fuses are good, where do I go from here? I got a feeling its this thing called a generic electronic module where is it. Replies to this message: dfortman (Feb 04, 2009 9:21 am) rummel (Feb 05, 2009 2:17 pm) countryrodney (Apr 13, 2009 5:21 pm)

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