High pitch whistling noise when accelerating

[cozby3591]

2019 Sierra Denali makes high pitched whistling noise when accelerating. It does this daily, but intermittently.

[fish_guru]

Lots of us have it.

 

 

[Ziggo]

Yep, have it here also on my 2019 Denali Ultimate...any updates to this issues from anyone??

[cozby3591]

 

They have resolved the issue with part #84626475 Hose 3.120 Y 

Its a vent hose on the gas tank that was to small. It collapses upon itself and whistled. 

[eppieguy]

They ordered the parts for mine just based on the information I gave them over the phone, I'm scheduled to go in on the 7th. for repair. 

[Chevy19]

Any update one what they did to solve the problem?

[Chevy19]

On 1/28/2019 at 10:25 AM, eppieguy said:

They ordered the parts for mine just based on the information I gave them over the phone, I'm scheduled to go in on the 7th. for repair. 

Any update?

[eppieguy]

10 hours ago, Chevy19 said:

Any update?

Mine was fixed last year, never came back, was a hose of some sort, connected to the gas filler or gas tank, I don't remember.

Edited January 8, 2020 by eppieguy

[Chevy19]

On 1/8/2020 at 7:29 AM, eppieguy said:

Mine was fixed last year, never came back, was a hose of some sort, connected to the gas filler or gas tank, I don't remember.

Did it happen when you accelerating between 30 - 50 mph? Mine is doing it too

[Chevy19]

On 12/22/2018 at 3:20 PM, cozby3591 said:

2019 Sierra Denali makes high pitched whistling noise when accelerating. It does this daily, but intermittently.

Did you ever get it fixed? And if you did , what did the dealership do?

Edited January 23, 2020 by Chevy19

[eppieguy]

18 hours ago, Chevy19 said:

Did it happen when you accelerating between 30 - 50 mph? Mine is doing it too

It's been over a year now, I do not recall the speeds but I know it was a low speed when it would whistle at me.

[Chevy19]

On 12/22/2018 at 3:20 PM, cozby3591 said:

2019 Sierra Denali makes high pitched whistling noise when accelerating. It does this daily, but intermittently.

Did you ever get it fixed?

[Chevy19]

On 12/22/2018 at 3:20 PM, cozby3591 said:

2019 Sierra Denali makes high pitched whistling noise when accelerating. It does this daily, but intermittently.

Did you ever get this fixed? And if you did what did they do?

[Chevy19]

can anyone help me out? i just got my truck back from dealership yesterday and they replaced a filler hose  for whistle noise coming from passenger side as I accelerate it happens between 35 - 50 MPH,,, can anyone help with this noise '? it only happens if i'm opening up the the throttle to get in up 35- 50 MPH quickly and then goes away. Its very strange noise, it only happens when im pressing down on the throttle and opening it up to get up to speed. ANY HELP WOULD BE MUCH APPRECIATED.  ( its a brand new truck, started happening about 500-600 miles, truck has 1100 miles now on it.) 

[ILSilverado]

On 2/6/2020 at 7:06 AM, Chevy19 said:

can anyone help me out? i just got my truck back from dealership yesterday and they replaced a filler hose  for whistle noise coming from passenger side as I accelerate it happens between 35 - 50 MPH,,, can anyone help with this noise '? it only happens if i'm opening up the the throttle to get in up 35- 50 MPH quickly and then goes away. Its very strange noise, it only happens when im pressing down on the throttle and opening it up to get up to speed. ANY HELP WOULD BE MUCH APPRECIATED.  ( its a brand new truck, started happening about 500-600 miles, truck has 1100 miles now on it.) 

Go to the dealer and ask them to go for a ride in it with you.