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How do I replace the o2 sensors on a 1999 chevrolet suburban?

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Well this is an easy job! first off there r four o2 sensors ! 2 be for the cats and two after! there is a special tool that u car buy from pep boys auto zone ect! first locate them they look like spark plugs ! unplug them ! and use the tool to remove them!two on each side!

Posted on May 12, 2010


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