Helicopter/vibration noise at 60-80 MPH

aha1987 · January 24, 2019

I know I have posted about this before but I am experiencing a vibration noise that sounds almost like a helicopter at speeds of 60-80 MPH. The noise seems to come and go. After thinking that it might be some vibration noise from the powertrain, I thought I would run my own test by shutting the engine off at 80 MPH and let it coast.... the noise doesn't go away. I would like to think it's the tires (Nitto Trail-grapplers) but I drove another 2019 Silverado with stock tires for several weeks and it made the same noise.

Anyone experiencing the same thing? Ideas?

Sierra Dan · January 25, 2019

Probably Dynamic Skip Fire technology and the exhaust droning similar to what K2 trucks sound like with the flapper valve removed in the exhaust.

Is your exhaust stock?

aha1987 · January 25, 2019

1 hour ago, Sierra Dan said:

Probably Dynamic Skip Fire technology and the exhaust droning similar to what K2 trucks sound like with the flapper valve removed in the exhaust.

Is your exhaust stock?

It does sound similar to that but I would think that it would quit doing it after shutting the engine off and letting it coast but it still makes the noise.

Yeah it is stock exhaust

Sierra Dan · January 25, 2019

Hmmm.

Strange one.

Maybe have your dealer take a peek at it since you are under warranty.

KARNUT · January 25, 2019

I drove my daughters Honda Odyssey recently. We're driving the freeway I'm noticing a shutter come and go. My dad ears perk up and conversations cease I start really paying attention. Sure enough it happens at the same time the Eco light comes. Didn't know they had cylinder deactivation. Wish I did she'd be driving a Toyota. Reminds me of a recent visit to the father in laws. He's a big Honda fan. He's driving a new Honda. He's 87 and had a fairly new odyssey. The cheapskate I know him to be I ask what's up. He explains the oil light would come on half way towards an oil change, a recent development. The Honda service tec told it wasn't all that usual. Why should GM buyers care you ask? Easy, with Hondas reputation for problem free vehicles, if they can't get cylinder deactivation down no one can.

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aha1987 · January 25, 2019

3 minutes ago, Sierra Dan said:

Hmmm.

Strange one.

Maybe have your dealer take a peek at it since you are under warranty.

Yeah very strange. I guess that's what ill have to do if it continues. I don't look forward to taking it to the dealer because I'm sure they will either say it's normal or they cant hear it.

2017Darkness · January 25, 2019

Something caught around driveshaft or an axle?

oldmann · January 25, 2019

I have no doubt it is the tires.

f8l vnm · January 25, 2019

sounds like a case of the chevy shake blues . let us know what happens .

SILVER SLED · January 26, 2019

No hood bug deflector or window rain guard things?

aha1987 · January 26, 2019

1 hour ago, SILVER SLED said:

No hood bug deflector or window rain guard things?

Neither

smrr1 · January 26, 2019

Had a noise like this on another vehicle. Turned out to be a loose plastic part under the vehicle that would flap around at hwy speeds. Put the proper clips back on and it went away. Maybe check for anything loose under the truck.

Gagliano7 · January 30, 2019

On 1/25/2019 at 10:53 AM, KARNUT said:

Easy, with Hondas reputation for problem free vehicles, if they can't get cylinder deactivation down no one can.

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That statement made me laugh. I have seen plenty of Honda's with problems. A honda civic i owned was the worst vehicle i have owned until i bought a 2013 subaru Impreza. Now the Honda is the second worst vehicle i have owned.