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Battery charging issue even with new battery, alternator and starter

Discussion in 'Liberty' started by Digologist, May 30, 2023.

  1. May 30, 2023 at 1:30 PM
    #1
    Digologist

    #1
    Digologist [OP] Member

    Joined:
    May 30, 2023
    Member:
    #7815
    Messages:
    6
    Gender:
    Male
    First Name:
    John
    Vehicle:
    2002 Jeep Liberty
    Hello, new here and looking for a little help. I just bought a 2002 Liberty 3.7 liter for the crazy price of $200. It has a charging problem( previous owner says it keeps draining the battery)
    It has a new battery, alternator and starter. I saw a couple Youtube videos that says it could be the PCM. If anyone has had this problem and can help, it would be appreciated. Thanks, John
     
    Digologist, May 30, 2023
    #1
  2. May 30, 2023 at 6:35 PM
    #2
    aggrex

    #2
    aggrex Well-Known Member

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    DE
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    Before digging into that pcm I’d perform a parasitic draw test, check battery cables from end-to-end not just the terminals. Some local auto parts stores can or will perform a test on the alternator and battery to help rule out variables
     
    aggrex, May 30, 2023
    #2
  3. May 31, 2023 at 6:09 PM
    #3
    Digologist

    #3
    Digologist [OP] Member

    Joined:
    May 30, 2023
    Member:
    #7815
    Messages:
    6
    Gender:
    Male
    First Name:
    John
    Vehicle:
    2002 Jeep Liberty
    Thanks. I found a video on how to check for a parasitic drain. I will be able to test the alternator as well. Thanks for the response.
     
    Digologist, May 31, 2023
    #3
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