Astro 1985-2005
Chevy's first entry into the minivan class, offered in All Wheel Drive to add to its versatility.
Platform: M-Body

idle high then low

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Old December 15th, 2010, 12:55 PM
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Default idle high then low

any idea why 96 astro idles high then lo then bk 2 high so on have already clnd egr once u give it gas runs like a top.things already done
cleaned egr,new plugs wires cap,valve cover gasket,pcv,air filter,gm injector clnr
Old January 1st, 2011, 12:31 PM
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Check the Idle Air Control sensor, I've been told the sensor which is in the intake can become dirty.
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