Ford 6.0L Power Stroke Diesel :: Water In Auto-locking Hubs?
I got new auto-locking hubs. The updated ones. As I proceeded to replace them, I pulled out old ones and when driver side came out, there was like 1/2 ounce of water that flowed out from where the auto-locking hub would sit. Strange. I had changed out lines, vacuum pump, vacuum solenoid and reservoir. All new and dry. I blasted both sides down with brake cleaner to clean off old grease, let dry and installed new auto hubs. So far so good. Will test the ESOF feature another time. I was wondering where this water would come from? Other side of wheel hubs are dry.
View 2 RepliesFord 7.3L Power Stroke (1999-2003) :: Switch From Manual To Auto Locking Hubs?
I know this is going to sounds lame, my wife can't turn them, they have cover over it that has to be unscrewed to get at 'em. It would be nice to shift in and out "on the fly" as weather condition change.
Is it a difficult change?
Ford Super Duty (1999-2016) :: F350 Won't Go Into 4 Wheel Drive - Auto Locking Hubs
My F350 4x4 won't go into 4 wheel drive unless I get out and take them out of auto and put them in locked position and when I have it in lock mode it seams to work like it's in auto mode, when I put the switch on the dash in 2wd, it seams like it's only driving the back wheels....
View 14 RepliesFord 6.0L Power Stroke Diesel :: Vacuum To Auto Hubs Leaking?
When I park over night while in 4x4, the next morning my hubs are disengaged and I have to manually lock them. There is an apparent slow/slight leak in the vacuum system. What would be the usual suspect, so I can start at that point?
View 3 RepliesFord 6.0L Power Stroke Diesel :: 2006 - ESOF Hubs Won't Lock In Auto
New to the 4x4 6.0 just bought an 06' King Ranch 130K miles. My other truck is a 95' 7.3 non 4x4 now for sale. So the new to me 06' will not lock the hubs in Auto mode but will in Manual. I have good vacuum down to each wheel hub which is where my question is.
The vac port at either wheel I get 20-30hg however I believe this is only because something is plugged. If I pump up my vac tester to ~25hg right at the wheel port the needle doesn't move, holds vacuum, but does not Auto lock the hub. So I pulled out the Manual/Auto hub by removing the 3 torque screws thinking my vacuum should then go to 0 but it doesn't it stays right at ~25hg.
Before I bought the truck there was some work done to the front end. New ball-joints, Rt tie-rod and perhaps a few other things I haven't ID yet. Could my problem above be an axle seal or something else perhaps installed incorrectly causing the small vac hole going down inside the hub to be covered up or maybe plugged somehow? I believe to replace the ball joints the axle, hub and other parts have to be removed, correct?
Ford Excursion :: Auto Locking Hubs Won't Engage?
And the vacuum pump was replaced.
View 7 RepliesFord Excursion :: 2000 - Pulling And Unlocking The Auto Locking Hubs?
I just recently purchased a 2000 Excursion and had some questions up in another thread. After doing some diagnosing....I have a couple of questions about the auto locking hubs. The problem I have is that even with the vacuum line disconnected from the knuckle and no vacuum...the hubs won't unlock in auto/2wd. I confirmed that the knuckle and the hubs will hold vacuum when I hooked my vacuum pump up to it and it held vacuum (the fitting should be clear as I heard the hub making some sounds). I'm getting ready to pull the hubs to clean and re-grease them. My question is that being they are still locked....will it be any harder to pull them off the spindle and after disassembling them/cleaning them.....when I re-install them....will they be unlocked by default after putting them back on the spline as they have been pulled apart and reassembled?
View 14 RepliesFord Super Duty (1999-2016) :: Front Hubs Not Auto Locking
My hubs will not lock when put into 4x4. I disconnected all lines from the solenoid to both hubs and tested them for leaks... All good there. I put a gauge on the lines at both hubs one at a time while the other is still connected and get no reading when switched into 4x4. I checked for vacuum right out of the solenoid, and I get 2inHg when switched into 4x.
The vacuum pump kicks on every time I start the truck, even if I just shut it off and re-start right away. There is no delay when switching my ac/heater controls to different settings or vent locations. So I know there is vacuum. How much vacuum I should be getting out of the solenoid to the hubs?
2004 F350 6.0L....
Ford 7.3L Power Stroke (1999-2003) :: Manual Locking Hubs Advantage Over OEM?
As my truck stands it has OEM automatic locking hubs with a selector for auto or lock. So, why would some one buy manual locking hubs and cap off the ESOF vacuum line when the OEM ones perform the same function by being auto or locked?
I hope this makes sense because if I felt I wanted to go to manual style locking hubs, I think I could simply cap off the vacuum line and then switch the hub to lock if I wanted 4x4 because the electric switch inside the truck is actually what engages the transfer case and puts the truck into 4x4.
Is this thinking/theory correct or am I missing something here?
Ford Super Duty (1999-2016) :: How Does ESOF Locking Hubs Work In Auto Mode
I took apart, cleaned and lubed my hubs. My question is: how does the vacuum make the gears work?
Does the vacuum force (suck) the nylon assembly to push the outer gear towards the center of the truck, sliding on the inner gear thus engaging the teeth so that the axle shaft turns the hub?
When the vacuum is gone, does spring pressure pushes the outer gear away from the center of the truck thus disengaging the teeth from the inner gear and allowing the hub to free wheel?
Is this vacuum source constant during 4wd and not present during 2wd or do I not understand how the system works? I have read about a “vacuum pulse” that locks the hubs and another pulse that unlocks the hubs and this confuses me.
BTW, I like the way the Auto lock works. I had a set of Warn Auto Lock hubs on my 78 CJ. They worked on the principle of a set of roller bearings that would lock (pinch) when there was torque coming from the drive shaft. There was no vacuum involved at all. The down side was that when you coasted, the front hubs would be in two wheel drive and so you would not get the engine braking on all 4 wheels. These ESOF seem to have solved this problem.
Oh, I should probably tell you that I just purchased my 04 F250 SuperDuty 4x4 with the 6.0 diesel, just had it a week. It has been 18 years since I owned a 4x4. Before this I owned an 87 F250 2wd with the 6.9 diesel.
Ford Super Duty (1999-2016) :: 2010 F350 Shudders When Turning Right - Auto Locking Hubs
My 2010 F350 shudders when turning right. From what I read it could be the auto locking hubs not dis-engaging or sticking in the locked position. Tutorials show it's pretty easy to pull the auto locking Hub out taking out the three screws holding it in place. My questions is what type of grease do I need to apply to the auto locking hub once I have them out and determine that is what the issue is?
View 13 RepliesFord Super Duty (1999-2016) :: 2013 F250 - Vacuum Lines For Auto Locking Hubs Frozen
I have a 2013 F250 which has both the Manual and auto locking hub feature. I tried to plow my driveway this morning and after making one pass I put the truck in reverse and could not back up my steep driveway. The truck is showing locked in 4x4 on the dash, the 4x4 control is in high lock but the front wheels will not turn. It has been very cold here lately (-30) and I'm wondering if the vacuum lines for the auto locking hubs have frozen. I have switched the control out of 4x4 and back in several times, and it does lock in again, but as soon as I put the truck into reverse, they unlock again. The hubs are covered with ice and snow right now so I have not yet tried to manually lock them.
View 14 RepliesFord F-150 (2004-2008) :: 2006 - Ticking Sound When Drive - Hubs Not Locking
Ok, So, Im 40 miles from home stuck in ice and snow in a hotel.. (my wife works close by- thought it would be safer than driving in the 10 inches of snow we got 3 days in a row) so, I go to pick her up tonight and I engage 4hi.. I hear the click and the light comes on.. but no clunk of the hubs locking.. I drop it in 4 lo.. it shifts in low.. but the hubs are not locking..
I hear a ticking sound as I drive and when I put it in 2wd it goes away. I turn off the truck, turn the wheel hard both ways .. get out and I can physically turn the drive shaft and I hear the ticking in the hubs. If I read correctly when the truck is off these should be locked?
is it possible the vacuum is not releasing? I also get the groaning when I start up of the air diverter.. that im told is operated by vacuum.. so I am guessing I have a vacuum problem??
Ford Super Duty (1999-2016) :: 4 Wheel Drive Locking Hubs?
My 2009 F-350 4x4 has a front wheel option of Auto or Lock ; I think I understand the Auto option but under what circumstances would I lock the hubs and is it safe to leave them in the Lock mode when traveling on the highway?
View 5 RepliesFord Super Duty (1999-2016) :: 2003 - Locking Hubs When Trying To Engage To Shift Into 4 Wheel Drive
I recently purchased a 2003 F350 FX4 Dually with the 7.3L Diesel. It has locking hubs and electric shift in the cab.
I have had locking hubs before that you had to engage to shift into 4 wheel drive and I have had trucks without locking hubs.
My truck didn't come with a manual, so I am looking for instructions for the proper use of this system.
Ford 7.3L Power Stroke (1999-2003) :: 2002 - Shuddering - Diesel Fuel - Damage Engine?
02 7.3L SD Im on a long haul and think I might have bought some bad diesel. It is shuddering a little kind of like a miss. It started right after I stopped for fuel. Is this going to damage my engine to keep plugging along? Is it just going to run kind of rough until I burn up the bad fuel? Ive got about 200mi to go so just needed to know if its safe to keep driving or am I going to be stranded.
View 13 RepliesFord 6.7L Power Stroke Diesel :: Strange Noise From Front Hubs
Coming home from a trip with my truck pulling the 5th wheel, we heard noises that seemed to be coming from the front hubs that sounded like stones in the hub caps. Once we got home I pulled the front lug covers to see if any came loose and were rattling around inside, but all were torgued properly. Everything drove strait and tight with no noticeable problems, should I be concerned....
View 8 RepliesFord 6.7L Power Stroke Diesel :: Unlocking The Front Hubs Improve Mileage?
I've been told that manually unlocking the front hubs on my '15 F350 dually, might just improve milage. Any concerns about the axle lubrication from being unlocked for extended periods of time? I rarely need the 4WD.
View 9 RepliesFord 6.0L Power Stroke Diesel :: Unable To Move Selector On Lock Out Hubs
I have a 2003 f250 and I am unable to rotate the hubs from automatic. I have removed them and while I had them apart, I was still unable to rotate the selector. It wouldn't turn even with a crescent wrench putting pressure on it. I repacked them with grease and reinstalled and they still work when in 4 wheel drive. I am just concerned that when the vacuum does go out, I will not get the hubs to manually lock in.
View 10 Replies