Intermittent hum or howl from front end

[nb2021]

At the start of winter I started experiencing the hum only at the end of stopping (around 5-10 mph to 0). Best way to describe is a mix of excessive tire tread noise or something stuck in the front rotors. Would only happen when warmed up in 2wd, very consistent. Switched to 4a all winter so I wouldn't experience it.

Last week I decided to switch back to 2wd in preparation for a dealer visit and now I can't recreate. I'm guessing warmer weather related? It would be nice to get it addressed before my warranty is up.

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[BAreEhD]

It's definitely associated with colder weather only.

As an update on the above fixes that I posted, they worked brilliantly until last week. No noise whatsoever in any weather or condition. Last Thursday however, the noise came back.

Unfortunately, the polishing procedure is but a temporary fix.

 

[vgottwals]

Morning All,

I am new to the forum and the f150 world (just sold a 7.3 and bought a 2021 2.7 ecoboost with 38k miles on it)

I believe I am having the same issue as everyone else on this thread. Mine is an everyday issue though and Ford can't get me in for a while. My truck starts at around 10 mph with the rubbing/grinding sound though, not higher speeds like some others previously have mentioned. It is even doing it in 4A sometimes. Additionally, under that 10 mph it is not an issue. Only over. I am just adding to the thread to see if anyone else has had luck with ford fixing this. I see the most recent post was within the last month and so far no luck, but mainly just looking to get in the train of messages and see if anyone finally fixes this!

I read pages ago that someone mentioned that Ford programmed the hubs to lock to warm up the front differential, anyone researched into whether tuning or programming can eliminate that (whether it be at the dealer or just a normal plug and play tuner)?

 

[Chip Stronghold]

Mine is also all the time, no matter the weather. It’s very annoying and I notice it at speeds of 10 plus as well, but most prominent at 55. I would almost describe it as a bad wheel bearing type of noise.

 

[MN_Hockey_Fan]

Mine is still doing it in 50 degree weather where in the past it seemed to require colder temps.

It certainly seems like after 20 miles or so it goes away.

 

[Jerome10]

There is a TSB for this. 24-2189. Can see more info in this thread: https://www.f150gen14.com/forum/thr...ecoboost-with-about-300km’s.20283/post-475734

 

[Jerome10]

FYI I took my truck in. Was told they can't get the humming to occur therefore they cannot perform the TSB.

Guess I'm gonna have to try to get in there during the winter so the noise can be verified? That should be fun since there is no rhyme or reason as to when it will make the noise.

Little surprised as the TSB language seems to indicate to check the VIN. Doesn't say anything about verifying noise. Or is it always with a TSB that they have to verify the issue before performing the fix?

 

[astrand1]

FYI I took my truck in. Was told they can't get the humming to occur therefore they cannot perform the TSB.

Guess I'm gonna have to try to get in there during the winter so the noise can be verified? That should be fun since there is no rhyme or reason as to when it will make the noise.

Little surprised as the TSB language seems to indicate to check the VIN. Doesn't say anything about verifying noise. Or is it always with a TSB that they have to verify the issue before performing the fix?

I had forgotten about this thread. But I got my truck back after the dealer having it for almost 2 months. They gave me a loner so that was good. But they changed the left front hub and iwe. Called me and said that noise was gone but they still heard something so turned out they rebuilt the front diff as well. Got the truck back and it’s whisper quiet. Put about 1k miles on it since and still totally quiet. I’m calling it a fix. (For now)

 

[Ford Motor Company]

Mine is also all the time, no matter the weather. It’s very annoying and I notice it at speeds of 10 plus as well, but most prominent at 55. I would almost describe it as a bad wheel bearing type of noise.

Good morning, Chip. Are you still experiencing this noise concern? If so, I would like to look into it on my end. Please send over a private message with your VIN and the name/location of your local Ford dealer.

 

[iambud]

I just bought a 2024 XLT last week it has 700 miles on it and it just started doing this. Was a cold morning. Threw it in 4x4 it was fine. Finally took an exit turned the truck off/on. It stopped then started again after .5 miles and then stopped....

 

[doolin64]

Uggh. I thought this problem went away. One of the reasons I traded my truck.

 

[Tungy01]

I’m having the same issue with my 22’ Raptor. Had the same humming noise during colder weather while slowing down to a full stop. My last 4 F150s had the same issue and never duplicated at the shop or fixed by the dealer.

 

[MN_Hockey_Fan]

Mine has been having similar issues for going on 2 years with my 2021 which now has 50K miles. 3rd time in for the problem was the charm I hope. They found 2 problems. Metal shavings in the front differential and the left front wheel bearing. They replaced the front driver hub/wheel bearing and rebuilt the front differential.

I just got it back, but it all seems fixed. Time will tell.

I'm guessing my issue got worse over time but I finally heard it again, then turned off the climate system and radio and really listened for it. Finally convinced myself I wasn't crazy and brought it in again. 1st two times they couldn't reproduce and essentially told me drive it till it breaks before
the powertrain warranty expires.

 

[Avalanche24PB]

Not sure if related to temperature or not... '24 powerboost and it's just finally getting cold here in Michigan.

On 6 different occasions in the last 24 hrs, probably 30 min total driving short distances, I've had a grinding sound in the front end. Sounds like 4x4 partially engaging. Not on acceleration. It seems to happen when I let off the gas and coast. Hitting 4h makes it go away instantly. Put it back in 2h and it may or may not come back right away.

First thought was a vacuum check valve but seems maybe the design was changed? Anyone know what the fix is or is this something a dealer is going to punt until it breaks?

 

[Jerome10]

Jeez, so that's at least 2 2024's now doing this?

The descriptions are exactly what prior years have had.

Just FYI 24-2189 does include 2024 models. Does not include raptors though.

Has anyone had success yet getting this TSB done? I was told they have to verify the issue to perform and its been ridiculously warm this winter here so far. Almost never below freezing yet and so it hasn't happened. I'm hoping I can take a video and that will be sufficient, once it gets cold enough.

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