Question about 1999 Chevrolet Silverado 1500

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Service engine soon light is on and when hooked up to the computer at auto zone it mentioned a knock sensor issue. Is this common? Also is this something easily changed? It is a 2002 Z71 with about 140000 miles.

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  • chrlwombl Nov 06, 2008

    my 2000 chevy with 4.8 is showing low circuit to knock sensor

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The knock sensor is easily replaced. If you look below the passenger side exhaust manifold, you should see it sticking out of the side of the engine block. it'll have an electrical connector, that once unplugged, will allow you to unscrew the sensor from the engine block. I hope this helps.

Posted on Nov 16, 2008

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