Noise while accelerating at certain loads - 6.2L

[mikemaat]

In my new 2016 6.2L, when I accelerate, at certain loads/rpms there is a noise that comes from the passenger side that kind of sounds like an out of balance wheel (its not). The noise is only at certain RPM loads, and is only under acceleration. Im unsure if itsnormal, or something is up. It is not high pitched like an exhaust leak.

 

For lack of a better way of explaining it, It sort of sounds like "WUH WUH WUH WUH WUH" (almost like a flat tire type sound). But like i said, it is not speed dependent, and goes away when the RPMs or the load increases about that certain threshold. Any chance it might be resonance in whatever frequency the active noise cancellation is throwing out? Any way to disable the active noise cancellation temporarily to eliminate that variable?

 

I may go to the dealership and test drive another 6.2L just to see if the sound is normal.

[OmniCamaro]

I've noticed similar noises in my 5.3. The faster you go the higher it gets, on mine at least.

[mikemaat]

It almost sounds like intake noise, but it seems to be only coming from the passenger kickwell......hmmm...

[TxTruckMan]

In my new 2016 6.2L, when I accelerate, at certain loads/rpms there is a noise that comes from the passenger side that kind of sounds like an out of balance wheel (its not). The noise is only at certain RPM loads, and is only under acceleration. Im unsure if itsnormal, or something is up. It is not high pitched like an exhaust leak.

 

For lack of a better way of explaining it, It sort of sounds like "WUH WUH WUH WUH WUH" (almost like a flat tire type sound). But like i said, it is not speed dependent, and goes away when the RPMs or the load increases about that certain threshold. Any chance it might be resonance in whatever frequency the active noise cancellation is throwing out? Any way to disable the active noise cancellation temporarily to eliminate that variable?

 

I may go to the dealership and test drive another 6.2L just to see if the sound is normal.

What mods do you have? Exhaust? Intake? Different tires/rims?

[Bvonscott]

That sound you hear is the sound of a firebreathing ecopoop eating monster of a motor wanting you to go full throttle and hold on

[FishinJ]

I think mine had done that in the past when the RPM were low under certain situations and the stock exhaust but I've got the Borla and have not heard it in a long time. With Tow/Haul turned on it never did it.

[mikemaat]

That sound you hear is the sound of a firebreathing ecopoop eating monster of a motor wanting you to go full throttle and hold on

 

Ahhhh, of course!

 

I think mine had done that in the past when the RPM were low under certain situations and the stock exhaust but I've got the Borla and have not heard it in a long time. With Tow/Haul turned on it never did it.

 

Ill have to try it with tow/haul and see. Maybe its a break-in type issue, trucks only got 900kms on it so far...