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spark plugs

  1. Spark plug replacement leads to further issues

    Engine & Drivetrain
    I have a 2009 Buick Enclave CX with ~150k miles. I begin having issues accelerating/retaining speed going uphill. I had assumed it would be transmission related, but I had it scanned and the codes all pointed to piston misfires. Seeing as the spark plugs hadn’t been changed, we started by...
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