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1995 Honda Civic Question: idle surging

 

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hcoates, 1.6L 4 Cylinder, Long Beach, WA, December 15, 2009, 20:17
 Rookie

My car froze up due to lack of antifreeze now it is surging when it warms up to operating temp.

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  • Answer #1

    December 17, 2009, 04:44
     Journeyman

    There could be two issues here. If the engine seized due to over heating that could cause a number of problems and should be addressed first.
    Idle surging typically is due to some type of vacuum leak. This could come from a broken vacuum hose, leaking intake, brake booster leak or a stuck idle air control valve. Once the vacuum leak is found and repaired then the engine base idle can be set and the surge should go away.

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