Whirring/Buzzing Sound When Accelerating From Stop (24' 3.5 Raptor)

[conr]

Recently noticed a whirring/buzzing sound (best way I can describe it) at around 7,000 miles on my ‘24 Raptor (3.5). I’ve attached a video for reference— not the loudest I've caught it so might have to turn up the volume a bit.

The sound occurs after accelerating from a stop, usually after being stationary for about 10 seconds or more. It seems to dissipate as the truck gets up to speed. The noise is noticeable even through music in the cabin and is louder when outside the truck. Sounds like it’s coming from the front-left underside.

This is my second Gen 3(.5), and I never experienced this in my first one.

Couple notes:
• Happens with or without the AC on
• Not affected by auto start/stop
• Occurs in both 2H and 4A
• I’ve even noticed it in reverse

For additional context, the AC compressor was replaced at 6,000 miles after it stopped blowing cold air. The truck was in the shop for over 20 days. Since then, I haven’t noticed any drivability issues, but the noise appeared after that repair.

Also, not sure if it’s related, but the serpentine belt squeaks like a hoopty after moderate rain.

Has anyone else experienced something similar? Besides being a general annoyance, could this be a sign of a part failure? I’m not looking forward to another trip to the shop. . . hoping to be pointed in the right direction before bringing it in.

Thanks in advance.

Sponsored

 

[conr]

Updated video with the noise from outside the truck.

 

[HammaMan]

Does your truck have auto start stop? See if it's coming from the trans pan.

 

[Ford Motor Company]

Recently noticed a whirring/buzzing sound (best way I can describe it) at around 7,000 miles on my ‘24 Raptor (3.5). I’ve attached a video for reference— not the loudest I've caught it so might have to turn up the volume a bit.

The sound occurs after accelerating from a stop, usually after being stationary for about 10 seconds or more. It seems to dissipate as the truck gets up to speed. The noise is noticeable even through music in the cabin and is louder when outside the truck. Sounds like it’s coming from the front-left underside.

This is my second Gen 3(.5), and I never experienced this in my first one.

Couple notes:
• Happens with or without the AC on
• Not affected by auto start/stop
• Occurs in both 2H and 4A
• I’ve even noticed it in reverse

For additional context, the AC compressor was replaced at 6,000 miles after it stopped blowing cold air. The truck was in the shop for over 20 days. Since then, I haven’t noticed any drivability issues, but the noise appeared after that repair.

Also, not sure if it’s related, but the serpentine belt squeaks like a hoopty after moderate rain.

Has anyone else experienced something similar? Besides being a general annoyance, could this be a sign of a part failure? I’m not looking forward to another trip to the shop. . . hoping to be pointed in the right direction before bringing it in.

Thanks in advance.

Hi there! Would you send us a private message with your VIN and dealership name and location? I’d like to look into this concern on my end.  

 

[conr]

Does your truck have auto start stop? See if it's coming from the trans pan.

Tracked down the sound and seems to be coming from the rear shock LiveValve motor. Quite loud for such a small part.

Will update once it’s back from service… appreciate the comment.

 

[21CodeOrRaptor]

Hi there! Would you send us a private message with your VIN and dealership name and location? I’d like to look into this concern on my end.  

Tracked down the sound and seems to be coming from the rear shock LiveValve motor. Quite loud for such a small part.

Will update once it’s back from service… appreciate the comment.

I have had this exact same noise coming from my right rear shock on my ‘21 Raptor for the past month. I finally got it into my local dealer and they are telling me the whole shock is faulty. The thing is, they replaced all my shocks last year under warranty because they were clunking and making all sorts of noise.
This shock is defective and even though I have an extended warranty/premium care warranty from ford - they tell me there is no warranty on parts replaced through warranty and I’m on the hook for another faulty part. Really frustrating and disappointing.

 

[Noelares7]

Tracked down the sound and seems to be coming from the rear shock LiveValve motor. Quite loud for such a small part.

Will update once it’s back from service… appreciate the comment.

Did you get your issue resolved with the noise coming from the rear shock live valve motor? I'm having the same exact issue on my 2021 F150 Raptor 37 PP with 33K miles. I attached a video of how mine sounds too.

 

[Noelares7]

Hi there! Would you send us a private message with your VIN and dealership name and location? I’d like to look into this concern on my end.  

Hi, not trying to hijack OP's thread, but my Ford dealership said it's normal operation to hear this loud buzzing noise from the live valve shocks. The truck is still at the shop as I refused to accept this was normal. No way this is normal.

 

[conr]

Did you get your issue resolved with the noise coming from the rear shock live valve motor? I'm having the same exact issue on my 2021 F150 Raptor 37 PP with 33K miles. I attached a video of how mine sounds too.

Dealer replaced the entire shock. Sound progressively got worse over a few weeks.

I was able to replicate the buzz in their service bays… pretty much echoed off the walls. They said a slight hum was normal initially but quickly changed their minds.

Haven’t had the issue since… seems like luck of the draw, unfortunately.

Sponsored