Question about 1998 Chevrolet Blazer

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1997 blazer, 4.3 v6

Using oil. no leaks, no smoking, pcv doesn't appear to be sticking. had a O2 sensor/catalytic converter message a few weeks ago. Change the upstream and the down stream O2 sensors and the check engine light cleared.

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  • Anonymous Mar 19, 2014

    changed O sensor for upstream already

  • Anonymous Mar 19, 2014

    changed O sensor upstream

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Posted on May 31, 2008

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