Powerboost whistle?

CardsFan

Member
First Name
Tim
Joined
May 13, 2021
Messages
18
Reaction score
10
Location
Kentucky
Vehicles
2021 F150 XLT SuperCrew
Hi All,

I have had my Powerboost for a few months now (5,500 miles) and really loving everything about it. One thing that I am trying to determine is if this high pitched whistle sound I am hearing is normal. I know the backup beep. I also know the safety hum that is there until 18 or so MPH. However, I also have this whistling sound during acceleration up to 60 MPH or so. This is the first time I have had turbo boosters, so was thinking that could be it, but it also seems to happen when I am on full electric. It is one that the pitch gets higher as the RPMs increase and then goes away/reduces as it shifts gears. It would be good to hear if anyone else hears this or not so I can determine if it's something that's normal or should take in.

Thanks.
Advertisement

 

Tosh

Well-known member
Joined
Apr 2, 2021
Messages
105
Reaction score
76
Location
Willamette Valley, Oregon
Vehicles
2007 Jeep WK CRD, 2021 F150 Lariat PB
Occupation
Re-Tired Bicycle Mechanic
What I can hear from my truck is not what I would call a "whistle", but I would call it a whine". I can hear the electric machine (motor/generator) in operation. More when it's in generator mode and less when it's in motor mode.

I hear the same noise from my neighbor's Lexus RX470, and also from the Prius my buddy drives.
 

Jerry Can

Well-known member
Joined
Jan 22, 2021
Messages
103
Reaction score
103
Location
Calgary
Vehicles
2021 F150 KR Powerboost, 2-tone Rapid Red, 157”
Occupation
Fuel Container
Hi All,

I have had my Powerboost for a few months now (5,500 miles) and really loving everything about it. One thing that I am trying to determine is if this high pitched whistle sound I am hearing is normal. I know the backup beep. I also know the safety hum that is there until 18 or so MPH. However, I also have this whistling sound during acceleration up to 60 MPH or so. This is the first time I have had turbo boosters, so was thinking that could be it, but it also seems to happen when I am on full electric. It is one that the pitch gets higher as the RPMs increase and then goes away/reduces as it shifts gears. It would be good to hear if anyone else hears this or not so I can determine if it's something that's normal or should take in.

Thanks.
That’s turbo whistle, it’s normal, and I hear it on my truck. It‘s from the compressor side of the turbo, and can be heard from the air intake when the throttle body is wide open and the turbos spooled up (i.e. under moderate to hard acceleration).
 

imnuts

Well-known member
First Name
Mark
Joined
Mar 1, 2021
Messages
308
Reaction score
240
Location
Dirty Jerz
Vehicles
'21 502A Powerboost 4×4
Occupation
Adult Babysitter
Turn on the boost gauge if you have that option and watch boost just to verify that it is the turbo spooling up.
 

Jrohner78

Member
First Name
James
Joined
Apr 12, 2021
Messages
18
Reaction score
7
Location
Iowa
Vehicles
2021 xlt fx4
This is my 3rd Ecoboost engine but my first powerboost obviously. I at times do hear a whine while under moderate to hard acceleration that is not the turbos. I've chalked it up to the hybrid drive for now but I'm keeping my ears on it to see if it ever changes.
 
OP
OP

CardsFan

Member
First Name
Tim
Joined
May 13, 2021
Messages
18
Reaction score
10
Location
Kentucky
Vehicles
2021 F150 XLT SuperCrew
Thanks everyone. I will for now just chalk it up to normal. Not sure if it is audible from outside the vehicle, but definitely inside I hear it. I will see if I can keep it in the same mode I am in but change the display so that it shows the booster to see if it is spooling up when I hear the sound.

Thanks,
Tim
 

Jerry Can

Well-known member
Joined
Jan 22, 2021
Messages
103
Reaction score
103
Location
Calgary
Vehicles
2021 F150 KR Powerboost, 2-tone Rapid Red, 157”
Occupation
Fuel Container
Not sure if it is audible from outside the vehicle, but definitely inside I hear it.
Perhaps it’s something other than turbo whistle then, because that noise is a “swooosh” sounding whistle that comes from the engine bay and will be louder outside the vehicle. When checking to see if the noise corresponds to boost pressure, also check if it’s louder with your window open.
 

David Gordon

Active member
First Name
David
Joined
Sep 17, 2021
Messages
39
Reaction score
20
Location
76048
Vehicles
2021 F-150 Platinum Powerboost
Occupation
Oilfield
I dont know what it is but is sure as hell annoying, I assume it is the electric motor or generator.
Almost as annoying as the backup beeping.
 
OP
OP

CardsFan

Member
First Name
Tim
Joined
May 13, 2021
Messages
18
Reaction score
10
Location
Kentucky
Vehicles
2021 F150 XLT SuperCrew
Yes, you have the ability to customize the 2 center gauges. With your vehicle on, you can go to:
  1. Hit the Menu button on your steering wheel
  2. Scroll to Settings and press OK
  3. Scroll to Configure Gauges and press OK
  4. You can choose Left or Right Selectable Gauge
  5. Scroll to the boost selection and click OK.
I haven't had a chance yet to see if the boost is kicking in when I hear the whistle, but will do that sometime today and report back.
 
Advertisement

 
Advertisement
Top