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  1. OEM Issues
    i have a '02 trailblazer lt with 4.2L with 118k. i replace plugs and filters about 1k ago and now the check engine light is on. it is "chugging at acceleration and a little at highway speeds". i ran the code at autozone, i dont have a code reader, and it can up as cylinder 1 misfire. i then...
    fuel lacking power misfire spark plug
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