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1990 Acura Legend

 

Question: MY CAR IS IDLING UP AND DOWN

Question

1953bignate, 2.7L V6, Richland, GA, May 03, 2011, 16:33
 Rookie

MY CAR WILL RUN, BUT IT'S KEEPS ON IDLE UP AND DOWN I DON'T KNOW WHAT CAN CAUSE THE PROBLEM CAN YOU HELP ME WITH IT.

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  • Answer #1

    ZeeTech May 03, 2011, 17:01
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     Master

    Sounds like there is a vacuum leak somewhere at the intake manifold.
    Check all the vacuum hoses, make sure they are not disconnected or broken.

    Zee

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  • Answer #2

    patrick mannion from Greg Solow's Engine Room, May 03, 2011, 20:44
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     Master

    As Zee said vacuum leaks are most likely the cause but low coolant level or bad coolant temperature switch also causes this surging idle.

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