Mircophones in roof of Denali making a Humming noise

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NathanJax

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Where is the rear one located?

(I have a 2006 Tahoe with rear air & dvd/rse)

the rear... what?

the rear actuator is on the passenger behind the plastic where the a/c unit is
 

imi4tth3w

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damn i did not know this. is this part of the auto a/c climate control? i guess since mine is a 2000 model without auto temp setting i don't have one. but i've always thought it was the on star mic as well. learn something new everyday
 

thebigredrock

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My Noisy Fan Fix

I just pulled the sensor apart, I took the fan blade out, snapped the cover back on, totally silent now. Without the fan blade to move air it is less responsive but the sensor still has a general idea of what the cabin temp is. I did buy a new replacement sensor like many others Tahoe owners and the replacement was still noisy.
 

Drif10

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I just pulled the sensor apart, I took the fan blade out, snapped the cover back on, totally silent now. Without the fan blade to move air it is less responsive but the sensor still has a general idea of what the cabin temp is. I did buy a new replacement sensor like many others Tahoe owners and the replacement was still noisy.

I haven't gone that far yet myself. Just took it out, blew it clean with air and sensor kleen I used on my maf, works fine 99% of the time. Since I rarely use the auto cc feature, I like your solution.
 

treehan77

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Anyone have steps on how to replace the rear aspirator? Already did the front on my 05 yukon now the back is annoying me but I haven't found any directions in how to get to it. I did see the post about cutting 4 slits and pulling it out, I'd rather not try that.
 

RyanJW

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I replaced the front aspirator quite easily but now the rear one is making the same noise. I'll see if I can get that one replaced and take some photos.
 

treehan77

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I replaced the front aspirator quite easily but now the rear one is making the same noise. I'll see if I can get that one replaced and take some photos.
Sweet take a lot of pics- I still need to get this done it's getting annoying.
 

ChrisNY

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Thank You guys. I am new here. I had the same issue and it was driving me crazy. Going to replace those fans this week.
 

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