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Buick Forum: faulty coil pack ?
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  1. #1
    Join Date
    Dec 2017
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    faulty coil pack ?

    My parents have an 09 lacrosse. They had coil packs changed 2 times this year...different mechanics. so no one will warranty the work.
    Why would they fail?
    I dont want to replace catalytic converter, but not sure what to do.
    The check engine light keeps coming on. and different codes seem to keep coming on
    Please help

  2. #2
    yesthatsteve is offline Junior Member My Buick(s): '13 LaCrosse eAssist
    Join Date
    Oct 2016
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    26
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    Re: faulty coil pack ?

    What are the codes?

  3. #3
    DonP is offline Full Member My Buick(s): 2017 Buick LaCrosse.
    Join Date
    Jun 2011
    Location
    VA
    Posts
    883
    Rep Power
    7

    Re: faulty coil pack ?

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    Same coil pack both times? If so, it might be the underlying ignition control.

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