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1998 Honda Accord

Question: idle problem

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BamaJoe251, 3.0L V6, Gulf Shores, AL, July 16, 2010, 07:52

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After warming, my 98 honda 3.0V6 idles up and down.It also has a hissinng sound coming from near the throttle body.What could be my problem? I was told it could be my intake manifold gasket

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• Answer #1

  patrick mannion from Greg Solow's Engine Room, July 16, 2010, 07:57
  

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  A hissing sound could quite possibly be a vacuum leak from the manifold or throttle body gasket, it should be easy to find the source of the leak, repairing it how ever is more expensive it it is the intake manifold gasket. the reason the idle surges is the computer in your car is trying to compensate and constantly correct the idle speed but the vacuum leak is not allowing the computer to work within its parameters.
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