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Intermittent hum or howl from front end

nb2021

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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

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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.
 
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vgottwals

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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

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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

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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.
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