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  1. Mass Airflow Sensor Replacement - Hesitation/bucking under load

    Engine/Drivetrain
    Can anyone recommend a replacement Mass Airflow Sensor? The Delco is $325ish and you can get aftermarket for $125 and even re-manufactured for $85 bucks! I've had the hesitation under load problems and have replaced O2 sensors, some coils, plugs, ran several tanks with techron etc. My 2009 has...
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