Truck 4WD Grinding or Not Working? Quick Fix For Auto Locking Hubs

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If you have a vehicle equipped with automatic locking hubs, and sometimes they don't engage, or grind when they do, try out this easy diagnostic before tackling a bigger job!
🔧 List of tools used:
• Floor Jack 1aau.to/opz/1AX...
• Jack Stands 1aau.to/oob/1AX...
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While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

[@1AAuto]

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[@alvintorralba4132]

Good day!!!me i ask the problem of kia sportage 2007 model front drive stock up run in 10meters?but the reverse is good running condition.

[@joshuap3188]

I have a question. Can the torque be checked while it's on the ground or does it have to be lifted up before you can check? I checked when it was on the ground and it seems tight.

[@20083500HD]

manual locking hubs and manual shift transfer case is the best...none of the vacuum or electrical crap to fail

[@hjstiles267]

Ya got it wrong. It is: 1) 4H = no vacuum = hubs (or integrated wheel end) engaged, 2) 2H = vacuum = IWE disengaged. This is important when troubleshooting the four-wheel-drive solenoid.

[@ricardozamudio6566]

Thank you for this video! I thought my axle went bad. You saved me a couple bucks.

[@1AAuto]

+Ricardo Zamudio Thank you! We love empowering our customers and showing how to perform DIY auto repairs with our high-quality auto parts. 1aau.to/m/Shop-1AAuto-c

[@michaelschneider2412]

Exactly what I was looking for. Same issue I was experiencing. I’ll take a look at my right hub!

[@crazybillsgarage]

Thank you Sue and Lenny, helped me out with my 4wd problem.👍

[@jean-sebastienguay1282]

How can that 13mm nut tightened to 20ft-lbs not loosen when most CV shafts have a 32mm nut and about 140-160 fl-lbs if you don't use threadlocker! ?

[@thejourneymen7722]

I noticed a new IWE actuator on that side probably person who installed it never tightened up the nut properly.

[@brianparker6294]

I think this must be my problem, wish I had the nice garage jack!! I definitely know my actuator on the transfer case is working, no check lights or codes either. I guess I’ll just check vacuum first

[@rejmonwilson]

My 2005 f150, 4by4 garbage I disconnected mine bad design😫😩. Great video 👌🏾💪🏾👏🏾👍🏾👨🏾‍🔧🇯🇲😱🇨🇦.

[@1AAuto]

+rejmonwilson Thanks for checking us out! 1AAuto.com

[@pmoormann]

IWE's are spring loaded to the 4 wd position. Vacuum retracts the IWEs to disengage the hubs.

[@Domiano542]

Just changed my 3 check valves and solenoid. Going to check this tomorrow.

[@cheeseheadfiddle]

Great to feature a woman in a video like this. Sue is a great teacher. Excellent.

[@goatwhsprr]

The tough issue for the masses that watch for videos is that F150 rules the roost when it comes to 5.4 triton or ford 4x4s helpful hinter vids.. I have a specific 07 expedition w/notorious 5.4 and there are few if any vids on where the damn hood latch is let alone where the IWE solenoid or how many chck valves are attached. The unicorn of the expedition and fords wisdom of making different flavors in 5.4 of the same year for diff models has to be the greatest happy ending by Fords grand planners. Thanks for making this of a general nature, Maybe just Maybe show some work on the 07-14 expeditions but with laser focus of what it looks like before you folks work your magic. Thank you in advance.

[@kirkgarst6008]

Thanks for the info, it was definitely helpful. ❤

[@ace03cobra67]

I did mine today. Both nut are loose on both side . Red loctite and retorque to 20ft and all good

[@1AAuto]

+Ace 03Cobra Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@rickcarp5453]

What would make for low work but not for high? Also in for high the 4 wheel drive Green Lake goes out. Along with the Transfer.case Symbol. 2007 QX56

[@tonychavez2083]

Nice video. But what about when you still get that wheel binding at the wheels (like your in 4x4) but it’s been switched to 2- high? Not disengaging?

[@kwiz8848]

I just finished tearing one apart and found the splines on the cv axle worn. Had to use a file to smooth them back out. This may be the binding issue your having

[@odthegreatest]

Thank you very much, I believe to have the same problem in my 2014 ssangyong Rexton. At least now I know the first step during trouble shooting of this problem. Cheers!👏👏👏

[@1AAuto]

+Orçun Dursun Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@oscarrojas564]

I have a problem with my 2001 Chevy Silverado 2500HD when I have it on 4HI my steering wheel fully turned and I press the gas my car has a hard time moving forward like the stutters. Any idea?

[@outkast937]

Oh hey i got this issue on my truck, but its just a bad linkage that i havent gotten around to fixing

[@3434abab]

You’re awesome Sue. So good to see a woman interested and very knowledgeable on the subject.

[@mattlonproctor7221]

Thank you and I know this video is two years old but what's this the rear or the front that you worked on

[@richardwang474]

Great information. Thank you for the video.

[@cericson3426]

I was driving mine into town today on the highway and I kept hearing a clicking sound. I noticed it was going in and out of four-wheel drive on its own. I disconnected both solenoids so I could drive home without the issue, not sure what the problem is.

[@TheRchavez31]

I had this issue on my 2013 f150. Passenger side IWE does not disengage. Vacuum signal seems to be ok. Although I have no way to accurately test it, However testing it with the tip of my finger it feels pretty much the same as drivers side, which disengages ok, I thought of a faulty IWE, Replaced it and still is not disengaging. Any suggestion of what could be going wrong.

[@bobbyblood5150]

What about 2004 chevy silverado front axle differential grinding when put in 4x4 it has shifter not push button. thanks

[@JohnTheMexicanic]

How strong is the vacuum at both actuators suppose to be? My driver side has somewhat good vacuum but the passenger side vacuum is reall weak. Also when i hit 50mph my passenger side tire starts vibrating like crazy. Also my 4WD stopped working. Would i have to change out the transfer case motor first?

[@ryans7569]

Thanks Sue 😊

[@1AAuto]

+Ryan S Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@r.o.9356]

oohhh!! My eyyeeee!!! Remember what she said safety first. 😜

[@andresadame9560]

Great video ... I was already thinking I needed to replace my axel... can that grinding noise also be caused by a loose control arm... since technically it would not be as tight as it should for it to engage properly??

[@assnapkined9295]

3:02 where exactly does one go to “look up the torque spec” for stuff like this? Sorry if this is a stupid question but I just took my bumper off on my 96 bronco the other day and I didn’t even bother looking for the torque spec for the bumper bolts, just tightened it up to 85 ft lbs. Where does one go to find such specific information?

[@ricardobarrios5205]

In the owner's manual.

[@soundspoon]

@@ricardobarrios5205 Torque specs for a bumper would not be in the owners manual.

[@waynesalekin6773]

Thank you!

[@nestorbandiez3708]

Very Helpful! Thanks

[@78ginop]

I jacked up my front end and only one of my cv axels spin. Are they supposed to spin freely?

[@williamyates7395]

Anybody else 4 wheeler drive monitor not popping in up when u engage it

[@forgedcustoms5699]

I’m new to this 4wd thing lol. I’m sorry I don’t understand. Why was it at the beginning of the video both tires moving but than after only one tires moved?

[@stevensmedberg2747]

My rear passenger tire doesn't spin in four wheel drive but isn't stuck

[@victornaja7927]

hi are you using a 12 foot tall lift.

[@satans.teddybear2972]

Question I have a 98 4wd ford ranger and it makes this noise at random if I’m in 2 wheel drive I could be driving doing nothing and it would do this and not stop unless I slow down to 15mph my auto shop is having a hard time figuring out what it is. It’s been doing it for 2 months with no idea why

[@davekroeplin9241]

my 4H drive indicator light is stuck on even when its in 2H and when i put it from 4H to 2 H it will go into 4low

[@Lsbernie805]

Is it the same case here with a Chevy Colorado? Mine is a 4x4 too but the truck engages but it won’t lock in what seems the issue?

[@slow5.395]

I have a Chevy Silverado 2004 1500 4WD and it has the 4WD service I checked it like the video but still not working

[@castrojody]

O4s dont lock unless equipt. Most american SUVs didnt lock until 2006 as a standard. The earlier ones are open up front, so technically 3 wheel drive.

[@andreweastwood6598]

Can that loose nut cause damage to any of the parts that are in that area? My front end was making a rumbling sound for quite a while and I found that loose nuts was the problem. Everything seems normal now but I am wondering if I am going to run into problems in the future.

[@moeb434]

Doesn't vacuum take it out of 4X4? If you remove the vacuum line, isn't it in 4X4 mode all the time?

[@snymanpieter7]

You are spot on, suppose to have vacuum to keep it in 2wd

[@shantor100]

That's right so people who disconnect the system are constantly in 4x4. How is that good

[@adamwelsh5744]

@@shantor100 you can also buy a delete kit. Its a 4x4 actuator (part on hub) without vacuum lines. The hubs stay locked in and axles spin but the driveshaft isn't spinning and sending power unless you put it in 4x4. A lot of people disconnect or run the delete kit. Haven't heard any horror stories yet.

[@joemauma5035]

you are correct.Advance giving bad info is worse then no info at all.

[@59plexi]

can you put a Metric lock nut on it with red loctite!?

[@davidaubin3449]

Great video, thanks well done

[@DelbertAlphonsoJean]

When a press my 4wd button to lock it on my 2007 toyota rav4. It isn’t working. Can everyone please help me get a solution for this problem please 🙏🏾??

[@JuanLopez-mw2kd]

What kind of tow mirrors are those am interested

[@59plexi]

is that the same with a 2015?

[@Charkatak]

On my uncle's 2005 F-150, sometimes when he puts the truck in "Drive" and releases brake pedal, truck doesn't move, as if something is holding it. He needs to accelerate a bit to make it move. We lifted the vehicle in the air and put it in Neutral, and all wheels seem to spin freely, didn't feel any drag. Almost a year ago we changed front and rear differential fluid and truck was fine, until very recently. Could it be 4x4 issue or something else?

[@FordedgeFD]

No problem 5.4w are known for that

[@DanielGomez-cf6vk]

I’m having that same issue I tighten it but then when I put 4x4 that noise comes back again please help I tightened it and no check engine light is on

[@pizza4prezident143]

If its mechanical it won't throw a code.

[@rossbowman202]

Good stuff.

[@1AAuto]

+Ross Bowman Thanks for checking us out. 1AAuto.com

[@sqd37l]

I wish this woman was my neighbor!

[@samchauke1836]

Hi can you please assist me my car doesn't move forward or backward forward range 2015

[@1AAuto]

+Sam Chauke We wouldn't be able to diagnose an issue like that here, you may want to have a local mechanic take a look at it. Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@riversidecountryclub2211]

So, what's the application,this ain't my truck,geez

[@johnnygoins7457]

Is it different on a 96 ranger, I am asking because every video shows 98 and up f150

[@1AAuto]

+Johnny Goins We don't have a how-to video for your vehicle right now, but the basic steps in this video should be enough to do this task. Buy this part for your vehicle on 1AAuto.com: 1aau.to/m/Shop-1AAuto-c

[@simonbar7665]

Big like

[@1AAuto]

+Simon Bar Thanks for checking us out! 1aau.to/m/Shop-1AAuto-c

[@leog6742]

Wow 👏😮👏

[@emmanuelsuazo1318]

Hello @1Auto, I’m having a problem with my 04 Silverado Z71 My 4hi won’t engage but my 4 low engages no problem. What could be the issue?

[@TheNorthernyankee]

Does that have to be in 4WD and fully engaged when you tighten the nut?

[@TonicofSonic]

no

[@45derrickman]

hoodies and spinning shafts are not a good mix smh

[@soup2nuts1957]

A PRY BAR FOR 20 FT LB LOL

[@stevieb9104]

I'll be darned.

[@ace03cobra67]

You can do without take the wheel off

[@1AAuto]

+Ace 03Cobra Thanks for the feedback!

[@WontSeeReplies]

Bless you. Toyota from here on.

[@ace03cobra67]

Toyota have problem too

[@drowssapma]

"I'm going to go with a different car maker, thus eliminate all problems". Said nobody ever.

[@047Kenny]

Hey guys I have a question, I’m new to cars and whatnot. I have a 2015 civic.. and a piece of plastic next to the right tire is hanging I believe it’s the engine splash guard, it’s not dragging it’s just hanging... do you know what I should do to repair it?

[@047Kenny]

Or what can I do to repair it? I’m not very handy with cars imma keep it real do you know how much it will cost to repair it

[@miked8730]

Please stop sticking your fingers up in the wheel! You make me very nervous lol!!

[@RussianbillionputtingWorth]

I'm thinking why would u really know. This shaft is not ingauged. Should not do that. Wtf man. You six apples short of a dozen

[@busterworley8418]

Get your fingers out of there, If I am hearing grinding I will take it apart. You did nothing!