Static noise coming from ceiling sensor

[joejoe]

I am getting a static noise from the sensor located just over my left shoulder on the driver side. What could this be and how can I stop it? Is this used for the Auto on A/C or ON-Star?

 

[JKmotorsports]

It's a fan to draw in the cabin air temperature for the auto climate system. A lot of times dust gets built up inside and you can blow compressed air in there to help stop the buzzing.

 

[warrior1]

thanks for that tip. mine buzzes on cold mornings, and i thought it was an onstar speaker. never thought it would be an auto climate sensor. thanks. im gonna try this tip.

 

[mr. yuk]

hitting it doesnt make it go away either.

 

[Nnaboy]

Temperature Aspirator problem.
Happened in my Tahoe over Christmas and I took it to the dealer where it got replaced.

 

[Dahlar]

Does anyone know the part number for the aspirator? Having trouble finding it on gmpartsdirect. I saw another site that had it for cheap but forgot the web address.

 

[pincusa]

This solves months of frustration listening to it buzzing away! Thanks!

 

[krunchy]

hitting it doesnt make it go away either.

X2

 

[junkydogg]

ive been punching that stupid little fan for weeks trying to get the noise to stop

 

[cc53fd]

same thing thought it was for on-star