Question about 2008 Toyota Sienna

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Engine knocking sound

I purchased a 2008 Sienna, when cold it knocks, get's louder when I accelerate. Once warm sound is very light, but still there. It's in the shop right now, but they don't see a problem with the noise, trying to tell me it's normal, any suggestions???

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  • yadayada
    yadayada May 11, 2010

    it is most likely piston noise, ignore it.

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Ask them to check the knock sensor

Posted on Jul 22, 2009

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