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Location of IAC; oil in hose past AMM - normal? 200 1990

posted by  Bonzo on  Sun Jan 8 10:33 CST 2006
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last visit: Fri Aug 29 15:50 CST 2014
[RELATED]

Looking into running rich (prior post today), was going to clean IAC but not really sure if I've found it - also, the hose past the AMM that goes into the TB is oily - is that normal?








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    Location of IAC; oil in hose past AMM - normal? 200 1990

    posted by  chuck b on  Sun Jan 8 10:50 CST 2006
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    last visit: Mon Mar 3 19:24 CST 2014
    [RELATED]

    I always have a little mess in that hose.

    IAC is under the intake. I believe 2 hoses and an electrical connection attached to it.

    It's a cylinder about 3 inches long.








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      Location of IAC; oil in hose past AMM - normal? 200 1990

      posted by  Bonzo on  Sun Jan 8 10:56 CST 2006
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      last visit: Fri Aug 29 15:50 CST 2014
      [RELATED]

      Right under the throttle body? I guess the pic of one I saw might be for a 740. This can cause running rich right?








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        Location of IAC; oil in hose past AMM - normal? 200 1990

        posted by  pageda on  Sun Jan 8 11:33 CST 2006
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        last visit: Fri Oct 24 13:18 CST 2014
        [RELATED]

        It controls idle speed by regulating the amount of air bypassing the closed throttle body plate. Probably not directly related to your problem but you may discover other things wrong while routing around.
        I have seen oil in my intake air hoses as well, more importantly is the hose crack free and not letting extra air in that has not been metered by the AMM. I pressurize them by plugging the holes with my fingers and palm of my hand and blowing air with my mouth. If it seems to hold pressure it is OK. You might want to clean the end you put on your mouth unless you like the taste of oil!
        Dan








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        Location of IAC; oil in hose past AMM - normal? 200 1990

        posted by  chuck b on  Sun Jan 8 11:09 CST 2006
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        last visit: Mon Mar 3 19:24 CST 2014
        [RELATED]

        Not sure if it will make it run rich. Won't hurt to clean it.

        Have you tested your O2 sensor?

        Have you checked the FAQ?







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