Gmc envoy idles up and down when air is on

2005 GMC ENVOY
100,000 MILES
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ADRIEN
  • MEMBER
  • 1 POST
my GMC Envoy idles up and down, but when i run my air its much worse, to the point that it will shut off and my air compressor clicks on and off. what is that?
Jun 29, 2012 at 8:47 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
The idle control system is acting up. Get the throttle body and IAC cleaned and retest.
Jun 29, 2012 at 8:52 AM
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