Question about 1999 Mercury Sable

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1999 Mercury Sable 24v OHC engine, starts normal but when engine begins to idle it runs rough and dies

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  • Alvin Childs Sep 30, 2010

    I am picking up a EGR vacuum solenoid this morning it is about the only thing I havn't replaced

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This is a difficult one..
check for vacuum leaks by possibly a visual inspection and then spraying starting fluid around hoses , intake and so on..if any change, you might have found a vacuum leak/bad gasket.
otherwise, DO clean the Idle Air Control Valve 1st.
then check and clean EGR valve next..

Posted on Sep 30, 2010

  • 1 more comment 
  • Alvin Childs Sep 30, 2010

    I have replaced the EGR valve, throttle position sensor and air bypass valve

  • art185607 Sep 30, 2010

    check PVC valve?..check timing or have timing checked.
    My ideas and options are exhausted at this point, sorry..
    It may need to go to the shop/garage if the timing is on and vacuum is good.
    I'm having the same type problem on my 97 Neon..and almost everything has been replaced/checked

  • art185607 Sep 30, 2010

    please Let me know if that helps or solves the problem..

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