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Whining/supercharger noise when RPM’s increase

aha1987
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aha1987 Enthusiast

aha1987

Posted
Posted (edited)

I am experiencing a noticeable whining noise when my RPM’s increase. It almost sounds like a supercharger. Curious to know if anyone else is experiencing this and know what it is.  I tried posting a video but it wouldn’t let me attach. 

Edited by Aycock1987
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2019SierraAT4
2019SierraAT4

I have a 2019 GMC Sierra AT4 with 6.2 liter and 10 speed auto with 33,000 miles.  It recently developed a loud whine that was tied to throttle input.  The more throttle the louder it got.  Took it to

M1ck3y
M1ck3y

Maybe trucks do take after their owners ?

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f8l vnm Senior Enthusiast

f8l vnm

Posted
Posted

10 speed ? If so yep I have it. Very faint whine engine noise I would almost call it.  Drove with GM tech and another dealers Forman. Both say it’s normal. Brother has a 18 5.0 F150 and same whine noise. Faint but annoying as hell.  Maybe  high pressure pump ? I’m definitely no expert. 

aha1987 Enthusiast

aha1987

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15 minutes ago, f8l vnm said:

10 speed ? If so yep I have it. Very faint whine engine noise I would almost call it.  Drove with GM tech and another dealers Forman. Both say it’s normal. Brother has a 18 5.0 F150 and same whine noise. Faint but annoying as hell.  Maybe  high pressure pump ? I’m definitely no expert. 

Yep, I have a 10 speed. But my dad also has a 10 speed and his doesn’t do it. Took it in the dealership thinking it was the alternator but the tech said it’s coming from the transmission  

truck_newbie Enthusiast

truck_newbie

Posted
Posted
8 hours ago, Aycock1987 said:

Yep, I have a 10 speed. But my dad also has a 10 speed and his doesn’t do it. Took it in the dealership thinking it was the alternator but the tech said it’s coming from the transmission  

Do you think your issue might be related to the discussion in this thread?

 

aha1987 Enthusiast

aha1987

Posted
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Posted
3 hours ago, truck_newbie said:

Do you think your issue might be related to the discussion in this thread?

 

Hey, I don’t think it is the same issue

Denali34 Enthusiast

Denali34

Posted
Posted

I get that same noise! More noticeable when tires are spinning... Sorry, I couldn't resist. Hope nothings wrong. 

aha1987 Enthusiast

aha1987

Posted
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Posted
40 minutes ago, Wheelguy said:

What kind of mileage are we talking about when the noise was first noticed?

I noticed the noise soon as I purchased the truck. I drove my dads 2019 (identical to mine) the other day and it didn't make the whining/supercharger noise that mine makes. I currently have 3k miles on mine

oldmann Senior Enthusiast

oldmann

Posted
Posted

I hear it on my 6.2 / 10 speed.  I don't like it, but I think I am stuck with it.  At first I thought it was the radio antenna.  

aha1987 Enthusiast

aha1987

Posted
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8 minutes ago, oldmann said:

I hear it on my 6.2 / 10 speed.  I don't like it, but I think I am stuck with it.  At first I thought it was the radio antenna.  

You don't like the noise or the truck?

oldmann Senior Enthusiast

oldmann

Posted
Posted
6 minutes ago, Aycock1987 said:

You don't like the noise or the truck?

haha.  I LOVE the truck. The noise could be annoying if I was OCD.

Wheelguy Enthusiast

Wheelguy

Posted
Posted

Many odd noise complaints across several different topics (jingle jingle thread, squeaky belt/pulley thread, now this one).  I realize that's nothing new, particularly with a first year new platform truck.

 

I work for a large supplier to GM in the powertrain segment and I've been told just this that GM Global Propulsion Systems (GPS - formerly called Powertrain or GMPT) is investigating some noises due to metal stampings, some are heat shields on what I believe is just the 6.2L.  This may or may not be related to any of the above noise complaints/issues though I'm doubtful it's related to the jingle jingle since that seems to be pointing to the front axle stub shaft.

 

I know this isn't anything concrete or maybe not even worth posting.  Just some info that may or may not put some owners at ease.  No clue as to what specific components have been isolated by GM or where they might be, so please don't inquire further - I can't answer further because I simply don't know much more.  I wish I could just call these guys up and give them symptoms and get questions answered but that would be frowned upon by my employer, I'm sure.

 

Hang in there, guys.

truck_newbie Enthusiast

truck_newbie

Posted
Posted
45 minutes ago, Wheelguy said:

Many odd noise complaints across several different topics (jingle jingle thread, squeaky belt/pulley thread, now this one).  I realize that's nothing new, particularly with a first year new platform truck.

 

I work for a large supplier to GM in the powertrain segment and I've been told just this that GM Global Propulsion Systems (GPS - formerly called Powertrain or GMPT) is investigating some noises due to metal stampings, some are heat shields on what I believe is just the 6.2L.  This may or may not be related to any of the above noise complaints/issues though I'm doubtful it's related to the jingle jingle since that seems to be pointing to the front axle stub shaft.

 

I know this isn't anything concrete or maybe not even worth posting.  Just some info that may or may not put some owners at ease.  No clue as to what specific components have been isolated by GM or where they might be, so please don't inquire further - I can't answer further because I simply don't know much more.  I wish I could just call these guys up and give them symptoms and get questions answered but that would be frowned upon by my employer, I'm sure.

 

Hang in there, guys.

That's good to know. Please keep us updated when you know more. 

Wheelguy Enthusiast

Wheelguy

Posted
Posted

I will if I do - I'm hearing this second hand but from a direct participant in the meetings - no clue on the frequency of meetings either.  Not to repeat myself over & over in several threads but I'm mainly trying to find out info on my particular noise issue (dealer says it's oil PCV related) but GM GPS claims they've yet to hear about that issue even though there's a PIP document out there since 10/2018 & supposedly an engineering change being considered.  Kinda sounds like GM is all over the place and may not be getting all the information that's pouring in.

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