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    5. 1973 buick century engine
    1973 buick century engine

    i found a switch or a sensor and i dont know what its call so i here for your help...... its on the back of the engine head passenger side and its right on top of the exhaust manifold

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    0  Views: 2021 Answers: 1 Posted: 12 years ago
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      1 Answer

      knock sensor. used to smooth out engine incase of bad fuel, incorrect ignition, ect. they hardly ever go bad

      12 years ago. Rating: 0
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