Willoverkill Posted May 17, 2011 Report Share Posted May 17, 2011 So I get this buzz sound coming from the little speaker or whatever it is thats right above the left side of your head in the roof. What is that thing for? Its driving me crazy and Im gonna hack the wires off. Quote Link to comment Share on other sites More sharing options...
The_aSSet Posted May 17, 2011 Report Share Posted May 17, 2011 isnt that a mic? Quote Link to comment Share on other sites More sharing options...
paulguy Posted May 17, 2011 Report Share Posted May 17, 2011 It the air temperature sender for auto climate controls And the motors make noise after a while. Quote Link to comment Share on other sites More sharing options...
misterp Posted May 17, 2011 Report Share Posted May 17, 2011 Using a search, I found this answer to your question from 2003. http://www.SilveradoSS.com/forums/topic/2995-the-vent-in-the-ceiling/page__view__findpost__p__37593 The fan probably has dust in it, blow some canned-air through it to remove the dust from the bearing and the squealing may very well go away. Mr. P. Quote Link to comment Share on other sites More sharing options...
juriha Posted May 17, 2011 Report Share Posted May 17, 2011 It the air temperature sender for auto climate controls And the motors make noise after a while. I dont have the auto climate control...and I have one...I always assumed it was the mic for OnStar... Quote Link to comment Share on other sites More sharing options...
paulguy Posted May 17, 2011 Report Share Posted May 17, 2011 Anyone replaced theirs? I took mine out and cleaned it..still makes noise. I wonder how much they are.I don't see them on the online catalogs Quote Link to comment Share on other sites More sharing options...
BlueAKSSS Posted May 17, 2011 Report Share Posted May 17, 2011 Don't cut the wires off of it is what I have heard because it will really mess up your auto climate control. Mine makes noise in the winter but goes away in the summer with warmer temps. Quote Link to comment Share on other sites More sharing options...
Silverad0 SS Posted May 17, 2011 Report Share Posted May 17, 2011 Mine does the same, it comes from the onstar mic. I usually punch it a few times and it stops lol Quote Link to comment Share on other sites More sharing options...
kbuchner Posted May 17, 2011 Report Share Posted May 17, 2011 Mine does the same exact thing. I pulled it apart cleaned it and it still makes noise. If you disconnect the wires your climate control will only blow warm air when its on 90. Quote Link to comment Share on other sites More sharing options...
weehousz Posted May 17, 2011 Report Share Posted May 17, 2011 It's a little fan that pulls in air for the climate control, because its a moving part after a while it makes noise. Best bet is to take it apart and clean it. Quote Link to comment Share on other sites More sharing options...
Willoverkill Posted May 17, 2011 Author Report Share Posted May 17, 2011 OK so half the people say its for onstar, the other half say its some sort of blower motor? Were talking about the little round (bout the size of a quarter) cover that has holes in it, right above the left side of your head close to the window? Silverado SS - Ive punched mine a few times too and now Ive knocked it up into the roof. But I can still hear the stupid thing buzzing! After you shut the truck off you can kind of hear it wind down. Maybe I should pull it apart. Quote Link to comment Share on other sites More sharing options...
JF-03-SS Posted May 17, 2011 Report Share Posted May 17, 2011 That is a fan for the climate control. The onstar mic is on the side of your overhead console. Quote Link to comment Share on other sites More sharing options...
JJones126 Posted May 17, 2011 Report Share Posted May 17, 2011 it's called a interior air temprature sensor. GM refers to it as a aspirator. your best bet is to just replace it i think their only about $60. Quote Link to comment Share on other sites More sharing options...
Willoverkill Posted May 17, 2011 Author Report Share Posted May 17, 2011 OK. Ill see if I can get it outta there tonight maybe and see why its buzzing. Im sure it could still get some sort of temp reading without it blowing on itself?! I cant afford 6 dollars right now let alone 60. The next item Id like to save for is the Efan upgrade. Im sick of hearing my junk fan on for no reason. Quote Link to comment Share on other sites More sharing options...
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