Yes, exactly, what is this aspirator for?
It makes noise all the time (not much but you can hear it)

thx

 

The aspirator is a temp sensor with a small fan. It hooks to the climate control system to let it know what the temp is inside the cabin of the truck.

The fan makes noise eventually. Mine was making the noise when I got it. I paid the dealer just over $120 to replace it. You have to pull part of the headliner down to get to the sensor and I didnt want to deal with it. The aprt was maybe $40 at the dealer.

 

how do u stop the aspirator noise?

 

I found out it is an aspirator and when they get worn like anyother fan they make noise, I blew in my with a air hose hoping to clean the fan and thus stop the noise it seemed to help some

 

Is this the correct p/n for the AcDelco unit for an '03 H2? Thanks.
ACDelco 15-51256 Inside Air Temperature Sensor Aspirator Assembly

 

If your talking about the flat round panel with all the holes in it, its actually a temperature sensor for your climate control. they get clogged up with dust and the fan in there will start making noise. Happened to me and I replaced it myself. ez to do .

 

I know. Do you know if the part # I referenced above it the correct one? This was my question. Thanks!

 

Amazon says it's a fit and Ebay says it's not...what to do!?

 

It looks exactly like it. I don't remember the part # but that one that you listed is identical in size and shape.

 

Thanks!