Question about 2003 Chevrolet Cavalier

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Check engine light came on and is running rough.

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  • linda0254 Jun 16, 2009

    i went to auto zone and they could not read the codes yet a guy from my work used his last year and he could read the codes why not auto zone? Where is the 02 sensor?

  • linda0254 Jun 16, 2009

    i know there are two of them but auto zone could not get any readings so not sure which to buy one is 52 the other 74..

  • linda0254 Jun 22, 2009

    i found out my fuse was not working so they could not ready my codes. I will go to autozone today and have them read the codes. i repalced the fuse Saturday. When they read the codes will they be able to tell which sensor it is? are they hard to replace? I am going to try to do it myself.

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  • 365 Answers

Go to an Auto Zone and have them diagnose it.
Sound like a O2 sensor though.

Posted on Jun 16, 2009

  • Michael Grey
    Michael Grey Jun 17, 2009

    Here

  • Michael Grey
    Michael Grey Jun 22, 2009

    You will need a special socket which I believe AZ will supply if you buy the part there.

    Contrary to most people you should warm up the car to expand the threads to help remove the affected O2 sensor.

    You can try with the engine cold first but if that does not work warm it up.

    Thanks for using FixYa

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