Question about 1993 Mercury Topaz

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Idles too fast - 1993 Mercury Topaz

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  • cheap repair Sep 27, 2010

    have you cleaned the throttle bore and butterfly valve? Also clean the idle air control valve, both with spary carb cleaner

  • yadayada
    yadayada Sep 27, 2010

    if u disconnect the air bypass idle speed control valve on the intake does the idle drop down and the engine stall or idle near a stall

  • c_robertshaw Sep 27, 2010

    on disconnecting the air bypass yes it does idles near a stall

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  • Mercury Master
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Replace the airbypass valve it is defective, have replaced 100's of these over the last 30 years

Posted on Sep 27, 2010

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