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Spark knock normal?

This is a discussion on Spark knock normal? within the General Help forums, part of the LSx Technical Help Section category; My WS6 has what sounds like a very light spark knock off the line at light throttle, but it's fine ...

  1. #1
    Member jag42420's Avatar
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    2002 WS6 Trans Am

    Spark knock normal?

    My WS6 has what sounds like a very light spark knock off the line at light throttle, but it's fine when I get into it. It isn't always there, but seems like mostly when going uphill slowly either at low cruise speeds or taking off uphill at light throttle. There is no power loss, and the car just hit 17k miles. Is this normal for a LS1?

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    Slow'er'Ass Mr. Luos's Avatar
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    What octane gas are you running??
    Is this a new problem?
    Have you checked plugs/wires?

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    Member jag42420's Avatar
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    2002 WS6 Trans Am

    Just noticed it, only had the car a month. Wires look new, never pulled the plugs. No visual problems, and the knock isn't always there. I run 87 octane.

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    Slow'er'Ass Mr. Luos's Avatar
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    Run premium and it will go away.
    Only really an extra $1.00-1.50 a tank, and VERY much so worth it.

  5. #5
    Veteran 0rion's Avatar
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    06 duramax

    agreed. Put some good gas in it and see what happens.

  6. #6
    Member jag42420's Avatar
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    2002 WS6 Trans Am

    Will do...

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