I think I have the idle issues fixed , and my thanks go out to Shep . He suggested cleaning the iac , which turned out to be kinda carbonned up . It idles as it should now .
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17 years ago
3.1 V6 idle revisited
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17 years ago
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17 years ago
What is the "iac" ?? Just curious. I have the same motor in a Lumina.
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17 years ago
It's the idle air control , sits on top of the throttle plate assembly . The wife's car was idling at 65 mph at times ... carbon apparently blocked it open , and the computer gave it enough fuel for that amount of air . Hard on brakes too !
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17 years ago
my car has a similar problem, sometimes it will idle high and others it wont idle at all.
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17 years ago
Oh..that stands for Internal Automatic Circuitry.
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17 years ago
I think you mean Idle Air Control. The IAC is a small motor which the computer uses to control the lower limit of the throttle blade which on most modern vehicles is just airflow since the gas is injected directly into the cylinders. It replaced the choke and idle screw on carbs.
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17 years ago
What a funny guy!!
Richie We> >