Gieger counter noise

[2008yukonxlslt]

will try it.

Haha....feel your pain!!!! My 08 Yukon has done something similar for years. Kept hoping whatever it was would just give-up and then would be able to determine source as I dont feel like going under the dash. Like teddy said, I think mine is HVAC related because I have got it to stop when changing defrost/vent selections, almost sounds like a regulated HVAC pressure valve that is "hunting". Mine also sounds like the noise also comes through the audio system I presume from the chime and warning system maybe.

 

[petethepug]

Fender liner rubbing on tire?


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[Leo1103]

My '12 does it on startup, I'll see if I can grab a video. It almost sounds like lifter tick but its more sporadic, less consistent, and not rpm dependent.

 

[avalonandl]

My '12 does it on startup, I'll see if I can grab a video. It almost sounds like lifter tick but its more sporadic, less consistent, and not rpm dependent.

Infamous LS engine lifter tick, mine has it but goes away after 45 seconds.

 

[Rocket Man]

I had a similar noise in my 02. Turned out to be the mode actuator, which is the super hard one to replace on that model.

 

[Leo1103]

Sorry for the potatoe cam, front camera turned on for some reason.

 

[Doubeleive]

Sorry for the potatoe cam, front camera turned on for some reason.

sounds like it is coming from the outside to me

 

[Rocket Man]

That’s hard to hear.

 

[petethepug]

Supply fan motor to hvac has toasted bearings. If installed, clogged cabin air filter or an obstruction in the hvac ductwork or flap gone wild.

It sounds rotational and spinning off axis. Order an automotive stethoscope on the cheap from China Freight.


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[Jolly Roger]

You are definitely not alone! I have the exact same "Gieger counter" noise coming from under my dash somewhere and its driving me batty!
I had a Jeep Wagoneer that the speedometer cable would make the same noise in the cable housing while it turned...hmmm