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Discussion Starter #1
i bought the used 97 sx200 last month. as the weather is getting hotter those days, i found the idle speed very low as 500 or 600 in the afternoon, but normal as 1000 in the morning and evening when it is cool. and sometimes the idle speed is changing from 800 to 1000 within 5mins as the temperature getting higher. what might by the problems? is it possible to be IAC? let me know your opinions! :)
 

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The IACV assembly, might need cleaning. There could be a lot of powdered carbon in it which would prevent the AAC valve from moving freely.
 

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Discussion Starter #3
Thank you so much! And do you think that I can handle the cleaning by myself? What kind of instruments do I need? If not, how much will it cost to clean in garage? Thank you again!
 

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Sup Mod keeping the peace
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The IACV might be difficult to get to; other then that, just a set of metric wrenches is all that's needed. Also you may need a new gasket.
 
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