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Failing alternator

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This topic contains 3 replies, has 3 voices, and was last updated by John John 8 months, 1 week ago.

  • Creator
    Topic
  • #894488
    Drew
    Drew
    Participant

    I have a 2010 Honda Pilot and am on my 3rd alternator replacement since July 2017. The electrical system seems to be a bit strange anyway because it has a done light with a short, but that light was removed. The A/C compressor relay was also replaced. Anyway, curious if thrres known common issues that can cause an alternator to fail so soon. They have all been installed from honda dealers and assume are Denso but for sure they are remanufactured. Any info is apprecisted!

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  • #895809
    Michael Sackstein
    Michael Sackstein
    Participant

    Well if they’re giving you new alternators at the dealership then they must be brand new. Now since you’ve been through several of them already I suspect that you probably have frayed ground and electrical wiring somewhere in the system and that’s what’s causing the alternator to go out. You also wanna make sure that you have a brand new battery for the car or a relatively new one because that can affect the charging system as well if it has dead cells or is not fully charged. But if the battery tests okay then I would definitely take a look at the electrical wiring going to the alternator because chances are you have a short somewhere

    #895839
    Drew
    Drew
    Participant

    Thanks for the thoughts. I actually forgot i had posted this here and had the alternator go bad again. Turns out it was the oil control switch leaking oil directly onto the alternator.

    #895870
    John
    John
    Blocked

    I absolutely agree with you.

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