Edmunds Answers



  • MrShift@Edmunds 09/28/13 10:10 pm PST

    Lots of things can cause this. Here are but a few possibilities:

    1. clogging fuel filter
    1. vacuum hose leak causing lower idle speed
    3. faulty IAC (Idle Air Control) Valve
    4. vacuum leak from intake manifold gasket
    5. cars needs a tune up
    6. The AC idle increase circuit isn't working (to boost idle with AC on)

  • justme38 10/28/13 7:30 pm PST

    first what kind of car? i had the same problem i changed the (iac) idle air control valve that fixed the problem!!!


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