What the heck is this thing?

[optimusprime]

What is this doohickey and why does it make the most annoying vibrating sound ever all the time?

 

[89Suburban]

What is this doohickey and why does it make the most annoying vibrating sound ever all the time?

View attachment 411634

Decepticon bugs planted by Soundwave and his minions.

 

[OR VietVet]

IIRC, isn't that the sniffer for the auto temp control? I am old and forget sometimes.

 

[Donal]

What is this doohickey and why does it make the most annoying vibrating sound ever all the time?

View attachment 411634

asperator, provides temperature to computer. Replace if the noise is bothersom to you. Requred for automatic AC operation.

 

[swathdiver]

What is this doohickey and why does it make the most annoying vibrating sound ever all the time?

View attachment 411634

Pull that cover and clean the hair and dust off the fan blades. If it doesn't work, get another aspirator, 22834330. If it fails, your Auto AC won't work right.

 

[BG1988]

What is this doohickey and why does it make the most annoying vibrating sound ever all the time?

it's the NSA wire tap inside your SUV

 

[Doubeleive]

What is this doohickey and why does it make the most annoying vibrating sound ever all the time?

View attachment 411634

environmental sensor for the hvac to properly regulate the interior temperature. it has a small fan and a thermistor, the fan motor goes bad and makes the noise. the fan blows air over the thermistor and changes ohm's the ohm signal goes to the hvac, the hvac then adjusts the temp up or down to keep the temperature where you have it set.
a new replacement is about $25 online and is easily replaced by both unclipping it and reaching in from the side of the headliner.
just pull the side of the headliner down "carefully" just enough to reach inside

 

[optimusprime]

Thanks guys. Sorry for the late reply. I forgot I posted this and then the sound reminded me haha. I’ll check it out today.

 

[solli5pack]

environmental sensor for the hvac to properly regulate the interior temperature. it has a small fan and a thermistor, the fan motor goes bad and makes the noise. the fan blows air over the thermistor and changes ohm's the ohm signal goes to the hvac, the hvac then adjusts the temp up or down to keep the temperature where you have it set.
a new replacement is about $25 online and is easily replaced by both unclipping it and reaching in from the side of the headliner.
just pull the side of the headliner down "carefully" just enough to reach inside

Anyone still finding these for $25?

 

[swathdiver]

Anyone still finding these for $25?View attachment 428215

Not with inflation. There's one on ebay from a low mileage vehicle for $31 and another new one for $44.