chevy bad idle

2003 CHEVROLET TRAILBLAZER
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AAAYC
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Shakes or Wobbles problem
2003 Chevy Trailblazer 6 cyl Two Wheel Drive Automatic 133K miles

Hello:
My Trailblazer idle is bad when the AC is on. When the AC is off it feels a little better. I change the spark plugs, air filter, better gas and gas additives but no luck. It feels like you are getting a massage. Also I have this tic tic tic tic tic noise that only goes away when I give gas. Can anyone help please. Thanks.
Oct 17, 2009 at 5:47 PM
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RASMATAZ
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Clean out the idle air control valve and see what happens
Oct 17, 2009 at 6:10 PM
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GCOTHREN
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Where is the idle air control vlave located?
Nov 24, 2009 at 2:18 PM
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RASMATAZ
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If you don't have a book, get one -its on the throttle body assembly
Nov 24, 2009 at 4:16 PM