Noise

JACK CALABRASE

MEMBER
2002 GMC ENVOY
6 CYL
4WD
AUTOMATIC

I keep hearing a noise coming from behind my head out of some miniture looking speaker thing. What could it be.

Thursday, November 25th, 2010 AT 9:51 PM

1 Reply

GMTECH

MECHANIC
537 POSTS

That mini speaker thing is called an aspirator motor. If you can hear it, it is time to change it. It's function is to measure air temp to assist in temperature regulation for the automatic temp controls.

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