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  1. W

    Passenger battery boiling

    Just trying to get the info out there for searches. This thread came up when I searched "Duramax battery boil" and I've seen the question come up on several forums.
  2. W

    Passenger battery boiling

    Only the pass side battery?? I'm willing to bet that your issue is that your windshield drains directly onto the top of that battery. If it is a flat top maintenance free battery, the drainage gradually overfills the battery. Poor some water on the pass side windshield and I guarantee that it...