Best IWE demonstration on KZfaq 👍

I have watched countless videos on this subject this is by far the best one thank u so so much

This is EXACTLY the video I needed.

I’ve owned a Ford Expedtion since 2017 and it has had this issue and required a solenoid replacement. I’ve been aware of this design flaw since I’m a member of an Expedition forum, but this visual demonstration is amazing and very underrated. Thanks for this!

I’ve had bearings, front diff and brake work done on my f150 and I still have a similar sound, this video is the closest to what the problem might probably be thank you so much sir

This is the best information about this anywhere! Thank you!

That completely explains the noise I had on my last f150 while towing our travel trailer!

Thanks for taking the time to set this up and make this video!

Sub'd thank you for taking the time to explain this. While not completely mechanically challenged, 4WD hubs are new to me. SUPER helpful! I have a '21 F-150 that is plagued by this, and I think I am just going to get rid of it. This will be the fourth time I've had it in the shop.

Omg lifesaver! Ive been chasing this problem all around trying to fig it out! Nailed it

This is an incredible explanation and demo. Nice job

Great explanation of how the IWE works and demonstration of failure sounds/indicators.

To the point and very clear explanation. Thank you

Thank you. Helped me diagnose and repair my truck.

Absolutely perfect. Appreciate it. Exactly the sound duplicated and an explanation. Perfect.

Best video out there for this issue I appreciate you man

AWESOME video. Just perfect. The engine vacuum drops under acceleration that explains why I hear the noise only with acceleration! Thank you.

That is the noise I couldn't pinpoint. Thank you.

Great video. Great demonstration. Kudos

this is exactly what i needed! great video thank you !

This is an amazing demonstration. Thanks!

Phenomenal explanation

THE best video on IWE. Idk why they didn’t just make this electronic. Vacuum is ridiculously complex and stupid.

That’s exactly what I have on my ssangyong Rexton w 2016. Thank you so much!

Great video that really explains source symptoms

Amazing! You nailed it! Thank you

Wow I never knew it could cause a grinding sound, I would have just assumed a bearing was the problem. Good info for future trouble shooting.

Very good explanation.

OUstanding vid/explanation. Thank you.

Awesome video man

Great explanation. thank you!

That’s the same exact noise I’m hearing in my raptor! Thank you

This makes too much sense now, thank you

You did a great job!

This was awesome Thank you

Driver side was just replaced under warranty and this explanation is perfect!

Not sure if that is my problem. But either way, absolutely great explaining. Keep it up.

U are the best broooo

awesome video

Thanks nice explanation

Just what i needed to know

Colin, Your the best, Simple and smart way to show us.. My garage can't get to do the work for a week to fix it. Does it sporatitally. Will I continue to do more harm driving untill then? Thanks again....

@colchilibeck This is a great video, thank you for the explanation. If I have driven with this noise off and on for a few hundred miles do you think it would damage the hubs and require them to be replaced? I will start with the check valve to see if it stops but am wondering if I have done more damage?

Great video. It's been making that noise for awhile surely the gears are toast by now what parts should be replaced?

Thank you so much

Can you drop a link to the part fix for this? Same noise on my 2018

Mine runs perfect in 4H. When I switch to 2H, I get the gridning noise from the passenger side only. I unhooked some of the lines and tested with a vacuum guage. At the solenoid, I'm getting 23-24inHg. The driver side, that is working properly is getting 23-24inHg. The passenger side, that is not fully disengaging is only getting 10inHg. Could that be the problem? It seems to be dropping vacuum right after the connection where is splits to go to both sides. 2007 F150 FX4. Any ideas? TIA

Could this be an issue in the rear of an all wheel drive 2016 escape? I’m having an issue where when I accelerate while turning there is a grinding noise. It only happens while I’m turning and accelerating at the same time.

I have a 2020 navigator. The dealer removed the vacuum lines and added vacuum caps as per lincolns TSB. Do you think the vacuum caps are a good idea?

Hi there mine just started doing that kind of noise but only when I do a hard turn to the left is this could be the same issue??

So if I were to unplug the vacuum line supplying the valve, I assume that would leave the faulty IWE's fully engaged so they would not make this sound anymore? Then I would know for sure that the IWE was the issue.

Thanks. Glad to hear it’s not just a rattle and is actually metal gears getting ground flat. I love my Ford! Is a clunk from the front when the engine starts related to it? (2019)

Good video. Can you please list the YEAR of the F150 (and engine) in the description. 2009-2014 models have a different check-valve setup. Thanks.

Had this issue on my Raptor. It was the vacuum hub actuator. Its seal looked intact, but when u moved your finger around the entire circumstance, there was a 2” split on it.

does this harm the hubs or any other components in the front drivetrain.

if it's just one iwe making the noise could it still be the solenoid gone bad?

Thank you

Is that play and clunk between the hub and the cv normal?

Will It be the same sound from rear

What if this rattling noise only occurs while steering to the right?

I have a popping sound right before im coming to a stop and right when im taking off doesnt do it til i hit a low enough speed any idea? 2005 f150ank u in advance

Could this only happen while turning as well?

What size line is that

Thank you - I've been having a noise that only lasts a second and usually happens in the first mile of so at low throttle. When I step on the gas the noise goes away. I've replaced the check valve and the solenoid but i still have the noise. It's very hard to tell where it is coming from and I'm a little concerned its the transmission but I don't feel anything slipping or anything. The noise you are generating sounds very similar to what I'm hearing. When I replaced the two upper components there was plenty of vacuum in the lines a day later so maybe it is the IWE units themselves. I'm trying to narrow things down so when I take it in I can point them in the right direction otherwise I'm going to get the ole couldn't reproduce the problem answer and waste a day.

My truck does a grinding whine sound only when i let my foot of the gas... i changed solenoid & check valve

What if it makes the noise during idle 97 f150 4x4

GREAT video! This has been absolutely driving me crazy and I couldn't get the shop to hear it or pinpoint it. Does this cause any damage if it keeps being driven in this state ?

That’s the noise at ~2:00!!! Thank you

My truck makes that sound but it is intermittent. could it be the same problem?

I only hear this when I have the wheels turned is that normal?

I have that grinding noise but sounds like its comming from the rear and not the front however, new Brakes didnt Help

Can you do one showing how the EIWE works for 21+ models? Or even better do a side by side. I am not exactly clear on how they work and I want to be more informed when they break in ten years. Lol

Weird question would this noise still happen say when you rev the motor nd at say 1500 rpm nd a constant noise if you leave it at 1500 rpm?

Having this issue with my truck. Jist bought it last April, the people at the shop are saying they can't re-create the noise so they aren't doing anything about it. Spent 2k on a warranty and they're trying to act like they haven't seen or heard of this issue before.

Both of my front wheels hubs make that exact sound when I spin them by hand.. what causes that? Could it be both of my IWEs are bad

Hi, great video. I had this trouble once. The sound was because one IWE is engaged, and the other is NOT engaged. Thus the engaged IWE is spinning the differential and since the other axle is stopped (friction?) the differential is spinning the driveshaft by the spiders at 2x speed. So if you are driving 60mph; the driveshaft (and R&P) are spinning at 120mph. And it's being reverse-driven so it makes a lot of gear-noise (or because the spiders are straight-cut). So how do I know it is this? Because when I switch to 4wd, then the transfer case locks, and all things NOW spin at equal speeds (even though one IWE is not engaged so 4wd drive is not being made) and the noise stops.

I’m getting this sound only when engaging 4wd. When I switch it back to 2wd the grinding/rumble strip feeling goes away. Do you think I can have a bad iwe that’s not fully engaging?

this is the exact noise that my 2017 F150 was making. 3 mechanics could not hear it. it was only slightly engaged

Yikes !! So that can’t be good for the teeth on the hub bearing and or the iwe ! Just Replaced hub bearing passenger side on a 06 f150 4x4. And now I have this noise from the drivers side I don’t get why a new hub on the other side would make it start havibg noise right away Did new check valves a few years ago along with the updated solenoid. Literally first highway trip after the new hub and I have sound. I don’t get it

Are the IWE locked or unlocked while in park and not in 4WD.

If I disconnect the soliniod. Can I drive this at highway speeds for about 500 miles to get the truck home? 2020 f150.

my 2019 started doing this at random intervals on the highway yesterday - off to the service department we go ---

Humm my 2018 f150 running tire jacked up the axles move and front drive line too

Thanks! I'm not so much hearing the noise as feeling it as a grinding through the floorboards at about 30-40mph. My 4x4 switch had broken some time back and I just replaced the switch and tested it and it appeared to operate normally. I guess I need to go through the workshop manual for the IWE and test it out.

I change all that and still getting that noise....I change both locking hubs...the solenoid ...the vaccum hose ..

EXACTLY THE SAME NOISE!!!

Fucking lifesaver

I rather have the manual shifter

Clearly and incorrectly explained. The wheels are floating till the IWE is engaged. The IWE activation doesNOT cause it to go into 4wheel drive. It merely locks the wheels to the front drive line sk when the TRANSFERCASE engages the 4wheel drive it will give power to the front wheels. Active IWE only causes the front drive shaft to move which has no power (no 4wheel drive) till the transfercase engages.