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  • My 2000 Chevy Impala has the following problem. Help!?

    You are here: Home » FQA » My 2000 Chevy Impala has the following problem. Help!?

    It hesitates as I apply the accelerator at slow speeds and doesn’t seem to be running smoothly at highway speeds.

    Sounds like it’s missing. Spark plugs or wires?

    Answer:
    a vacuum leak can cause hesitation, but doesn’t affect engine at highway speed. When did you last change plugs and wires?

    You always replace the plug wires when putting spark plugs in that motor.

    Also clean the mass air flow sensor,

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