Noise

2002 GMC ENVOY
6 CYL • 4WD • AUTOMATIC
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JACK CALABRASE
  • MEMBER
  • 1 POST
I keep hearing a noise coming from behind my head out of some miniture looking speaker thing. What could it be.
Nov 25, 2010 at 1:51 PM
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GMTECH
  • ✓Experienced 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.
Nov 25, 2010 at 7:29 PM
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