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I'm having this issue on my 2024

Hey, I don’t know if you’re still on F150. They came up with a very cheap solution plastic cap to go on the backside of a valve.

reminds me of the 50's cars with the vacuum wipers running off the vacuum pump on top of the manual fuel pump🙂😂

Thank you so much, sir. You have saved me a ton of money and a lot of headache. May the Lord bless you abundantly

Never told us or showed us what it sounds like ??

Mine sounded like when you get your recoil in your snowmobile/lawnmower all coiled up then your just about to out in It's housing and it blows apart, absolutely horrible sound, thought my tranny was blowing up, thank god we have TH-cam and guys like you thx Man

I think this may be my issue, but when I get the rattle noise I lose power if I try to accelerate through it. Does anyone else lose power and or gas mileage when they hear the noise and try to accelerate through it? Thx....Driving me nuts!

Great video

Can I drive with this noise?

Thanks for sharing.. Question, I have a 2009 and I think this is the issue but the check valve on my year is not in the same location. Any ideas?

Took my truck to World Ford Pensacola to have the warranty work done: took them _A MONTH_ to replace that little valve. No rental car, no nothing. A month to install that little valve.

my 2018 4x4 has a roaring or grind noise when turning right of even veering right. Changed the left side hub/bearing, no help, changed the vacuum check valve like you did, no help. Any suggestion? thanks

Any updates?

Has anyone figures put what it was

definitely going to try this.

Figured out a great fix after dealing with this for years, never buy a ford again.

Will this affect the 2wd f-150? I have this problem with I press the breaks Even after a new set

Thank you !

Tnx

Will the check valve linked in the description fit on a 2013 as well? Looks the same

I know exactly what you are talking about. This describes my issue perfectly. Going to order the part today! Thank you

There is an updated version of this check valve that wont go bad. Part number : fl3z38788B

Where is located?

Checked my vacuum with a gauge and would drop on a slow incline under accl. Similar to video. So I changed the check valve and it still does so but only when it lugs uphill or refuses to downshift. 20inhg at idle, but steadily drops to 5 as you lug uphill. Give it a lot of gas and it’s back to 20 or 15 at lowest. Any thoughts? Leak, solenoid? Other ?

Can I Venmo $20. You just saved me a bunch of headache

Looking at buying a 2018 used with 73k. When did you notice this (or anyone reading this)?

My 2017 keeps doing this and the check valve fixes it for like 2 weeks and then it does it again. Dealership always says they cant replicate the noise. They got it to do it the first time which is how it got fixed but now they wont fix it

Great video. My 2007 had a loss of vacuum also. It was a cracked vacuum reservoir(behind battery against the fender passenger side, used plastic epoxy to fix) and a loose iwe hose connection middle front behind the lower cross member. It's right about where the oil filter dumps oil when removed for oil change to drench wires and the iwe hose connection. I bought the whole hose assembly and put it in. my solenoid was also destroyed where the water drips on it when it rains.

I have a 2010 f150 and I’ve changed the whole vacuum line and replaced the hub from the same side the gray ding sound is coming from. I’ve even change the IWE check valve assembly and the solenoid. I’ve done all of that and I still hear the grinding sound. Yes I’ve check under the truck for a heat shield to see if I had one falling off but I don’t

I have a noise like this on hard acceleration. I'm going to check that valve. Thanks!!!

I had the exact problem you're talking about I went over to O'Reilly Auto Parts I got the part put it on in about 1 minute and it solved the problem thank you this is one of the best videos I've ever seen

Is it harmless if not fixed?

fyi an easy way to troubleshoot this without a gauage or anything is to just drive in 4wd and if the sound isn't made, it's the check valve.

Thank you noise has been driving me nuts for a week you're vid was the first thing I found and fixed the issue the item says it does not fit for 2018 f150 but it worked perfectly.

Dude thanks my wife was pics about the noise and wanted to return it to ford but now it's fixed

I had that exact same problem on my 2015. I changed my brakes several times, I changed the hubs, I took it to a mechanic and even they could not figure it out. In the end, I bought a new truck it was driving me crazy. Funny how you figured it all out after all of these years. LOL

2 questions 1) is this a recall item? 2) Where did you get that actual part? I’ve got the exact same issue and the dealership is saying it’ll be around $400 to fix.

The IWE can fail without you even knowing it. The IWE only makes noise if there is partial engagement. My truck started making noise occasionally, so I tested the IWE. The left was fully locked at all times, regardless of vacuum, and the right tested ok. I replaced the left, but the noise persisted. I replaced the right, and the noise went away. It's trivial to replace the check valve and the solenoid, and both those parts are cheap. If that doesn't fix it, replace both IWE assemblies. They are about $90 each and it's pretty easy to change them out yourself. If you ignore the grinding and drive like that, you might have to replace your hub bearing assembly as well, and that can get expensive.

Hub

I had a vacuum leak to the Iwe Hubs. The plastic/polymer line run a little close to the exhaust manifold making it brittle causing a vacuum leak. Neighbor offered to look at it for me. When I got home he replaced both lines with what he call European metal braided break line. He had a roll of it left over in same diameter. Flared the metal ends utilized the existing mounts it looked factory. Zero issues in 5 years. Running the hubs off of the break booster vacuum is old tech. Ford hubs should be electric nowadays. Loss of vacuum engages the hubs. My symptoms were a slight hum in the left front that finally went full grinding. Had to put in 4H to fully engage the hubs to stop the grinding. Drove in 4H just enough to square the truck up so the tow truck could get it home.

Thank you. Before I found this video, the noise was driving me nuts. I was only able to reproduce the noise by driving at random times so it was impossible to know where it was coming from. I spent the $8 bucks and it hasn't grinded since. Thank you.

Where did you get the airline push connect fittings?

Whets is causing grinding noise when turning right or left from a dead stop and then stops when going straight

Must be the first time for it ever did 4x4

Genius. Worked perfectly on my 2016 FC4 Ecoboost. Thank you!

17' Expedition. Noise only in 2 wheel drive and turning. Thoughts?

I had my 2018 F-150 seen at the dealership 3 times for this exact grinding noise and they had no clue what it was. They finally guessed rightly that it was a vacuum loss issue, but they checked the vacuum at the IWE Hubs and not the check valve. Said it was all within spec and wouldn’t work on it. Also, they seemed to have zero clue about this TSB. Appreciate the info! Just hoping my IWE gears aren’t totally damaged now.

Thank you! My 2017 does this occasionally and I feared the worst. For $8 I'm just going to change it and see what happens. Much appreciated.

I have this grinding noise in 2 wheel especially when on throttle . Switch to 4x4 , instantly goes away

Is this only on 4x4 trucks?