In this video Eric O. has a look at a malfunctioning ESOF (electronic shift on the fly) 4 wheel drive system in this Ford Truck that is equipped with PVH (Pulse Vacuum Hubs) So come along and see if we can find out why the front hubs won't lock in!
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--Eric O.
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South Main Auto Repair
47 S. Main St
PO Box 471
Avoca, NY 14809
Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not South Main Auto Repair.
Interested in stuff seen in the videos or the tools and toys Eric O. likes and uses? Check out the S.M.A. "A-Store" and help support the channel! : http://astore.amazon.com/httpswwwy0837-20
If an SMA Video has helped you out please consider giving using the "support" link on our YouTube home page. The videos take real time to create and pull us away from real work that pays our bills.
THANKS!
--Eric O.
WANT AN "SMA" STICKER OF YOUR OWN!?!
Simply send and E-mail to SMAstickers @outlook.com including: your shipping address and e-mail address in the text, I in turn will send you a paypal invoice for $5 each USA or $6 each international. Let me know how many you want and as soon as the paypal invoice is paid I will ship them out ASAP! Thanks for your support of our channel!!
--Eric & Vanessa O.
Feel like sending some swag to SMA because you love the videos but don't know where to send it?
Just ship it here:
South Main Auto Repair
47 S. Main St
PO Box 471
Avoca, NY 14809
Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not South Main Auto Repair.
Awesome video as usual ……. very informative. I'm looking to purchase a vacuum gauge and/or pump and was wondering what you would recommend. There's quite a few brands on Amazon but none of them have very good reviews. Thanks again and keep the awesome videos comin'. Cheers!!!
Good video thanks..
Would this problem cause irregular wear on the front tire? I have the same problem and noticed my tire is worn on the edge.
Is this vacuum hub setup different for the 2000 f550 7.3 4×4? Great vid
Is there any more durable maybe wire braid options for the vacuum lines? Maybe some universal line I could replace these junky dry rotting lines ford puts on em. So much vacuum every where on this truck and the material they use just falls apart.
Quick question. I have an 03 super duty with 6L turbo diesel. I had a guy try to figure it out before I bought it but it's not fixed though.
My 4wd works if I lock the hubs tcase is driving all the time. The dash switch doesn't do anything. He had tried new switch new tcase solonoid. In auto on hubs it's free spin.
Would a vac leak cause nothing to change on dash and hubs not to lock
if the other side was leaking it would not held the vacuum so you did not need to test the otherside however for my own vehicle if I'm doing the seals on one side I would rather just do both sides and know that it will not fail a month down the road on the otherside. great video and you definitely are a real mechanic and not a parts changer. Good job!
Excellent job in narrating. I think my problem is the inner seal. Thank you very much.
So how is Hannah doing these days?
Wow!!!
Great Video.
Your Experience
Probably won't be
Appreciated in some
Other Shop I see why
You have own
Business /Top Tech.
Thank You.Takecare!
How miles on the
Truck? I'm curious
Good use of your smoke machine, here in Ontario they canceled the emissions testing program so I imagine there is a few smoke machines collecting dust if the guys aren’t creative enough to use the machine for things other then intended original purpose .
Hey Eric! Never mind
These Vacuum Systems Are A Pain they are failure prone vacumm actuator or The Hub seals or vacuum lines Good Video as Always Eric O @SouthMainAutoRepairLLC
A little late on comment but it’s funny the F150 front wheel hubs UNLOCK with vacuum and LOCK with NO VACUUM. 180 opposite from F250.
Why did you remove the dust seal, cause you dont like it?
And why did you remove the spacing collar? You dont like that either? It helps keep the splines out of the rusty grit when sliding axle back in. Confused.
Also put the smoke machine on the other hub, if its blowing smoke, it is bad.
Great work, what I was looking for… Subscribed.
You can make a seal installation tool with an 8" piece of galvanized pipe, a pipe cap, & a 4"? flange. You will have to grind the diameter of the flange down to fit the seal properly, & the 1.5" pipe will slide over the axle shaft. The cap gives you a nice place to hit & keep the blows centered. All of the parts can be purchased at Lowes/Home Depot for like $25. I did mine this way & it worked perfectly. The special tool does prevent overdriving the seal where the flange/pipe/cap tool does not, but it still works just fine.
I have watched plenty of videos on the wheel hub and bearing assemblies. Your video is so in depth and explained so well in detail, I can just about picture and understand all the working parts of the assemblies by memory alone now. Great video. thank you
Good stuff
Eric is by far the best mechanic on you tube
pal you are good detective but ya got me confused about the need to test the right side hub. When you were pinching the cross over line to the left side that should have proven the right side was ok. The smoke test proved the left side was faulty. This is way late after the video of course but just wanted to comment.
Can we just delete the locking hubs with drive flange slugs and just be done. I want a truck to work when I hit the switch not live on a prayer
Just did My transfer case that has a similar$60.00 seal. Don't have the tool, but I have a very expensive machine shop. Made my own tool. Yes I would charge a lot to make the tool for someone else. Just some time and scrap aluminum. Just saying!
Good video. George from southern Indiana.
Need a magnet on that vaccum gauge
Typical Ford screw up
I installed Dana spicer super 60 upper, lower ball joints and Dana spicer u joints with Dana spicer axle dust seal, and axle shaft seal best ones to get well worth spending $400 on it last winter. I have to replace my locking hubs soon too. More worth it if you buy the whole Dana spicer kit comes with u joint, seals, and gaskets, and upper and lower ball joints
Man I want to say thanks. You answered all my questions in one video that I couldn't find in 4 other videos. Very detailed and all the proper zooms in needed. Thanks man
being a youtuber myself I can greatly appreciate the time you took to make this vid despite having a very busy shop…so, thank you!! And the smoke machine was new to me…got one on order now!
The inner hub seal comes lubricated with a clearish lubricant. What is it? Resembles dielectric grease, but I have never found it mentioned. I would like to add extra to my next seal.
first time I've ever left a comment on a video, but this vid was so well done that I had too. Had similar failure of autolock hubs not engaging on my 2002 F250SD…the vacuum gage readings that the author showed in his video were critical to figure out what I should be seeing on my truck. I was getting vacuum at the wheel ends of the vacuum lines when selecting 4WD in the cab, so it showed my solenoid was operating…it was just low, only around 4" of Hg or so…this vid showed me I should be seeing around 20". Poked around and got around 20" of Hg at the inlet of the solenoid (red hard plastic line) and was only getting 4" of Hg at the solenoid outlet (black hard plastic line)….replaced solenoid and vacuum immediately went to 20" downstream of the solenoid valve. 4×4 worked. Thank you!!!
Eric, I have hubs unlocked, but front drive shaft is turning when in 2 wheel drive. Should it be turning or not when its set to 2 wheel drive? I would think it should not, but I’m not sure? Can anyone answer this?
Damn. I wish you were my neighbor 😂
Great video. Very informative.
Another great vedeo this is a really pure fucking mechanic 👏👏 this man are a probably a one of the best mechanics have in USA 👏👌👍 shame we don't have a professional mechanics like you here in Norway 🤔 only guy's removing a older parts and puts a new one and they don't know if still good or not!! Great work mate 👍 cheers from Norway 🇳🇴👍
Find a retired machinist that still does some work at home. I bet he can make those tools for a lot less than $300.
Hey brother I have a f2500 1997 and I changed the front brakes and then they got lock and I replace the pistons and still the sAme, do you have any idea what can be?
That was a very good video I know a lot of the trucks now obsolete with the newer trucks coming out but if somebody has an older truck that has the auto hubs like that they should be saving that video for a long time you did a good job thank you for the video the next time I get a truck in that year I'm going to look at your video If I have a problem with my Hubs take care hope you're doing well
That drive shaft 1200 dollars to you
Nice video but it's ford I hate ford's
I always just change the OE hubs to aftermarket manual hubs. Vacuum hubs are a ridiculous design.
Who is Hanna
those vac hubs are shit
Didn't you already verify the first hub when it was actuating and working with the other side isolated?
vacuum hubs all around troublesome shit of an idea.
Is that a Ford design or is it a Dana design?
Cool video. I like that you caught your mistake and admitted it on camera. It actually put emphasis on how easy it is to make a mistake even by a professional..very cool. I liked and subscribed.
would a brake bleeder vacuum tool work for this? in other words hook up the brake bleeder vacuum and use it in lieu of the gauge you used.