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Battery Junction Box Buzzing

Discussion in 'Truck & Equipment Repair' started by Coloradosnoway, Sep 2, 2014.

  1. Coloradosnoway

    Coloradosnoway Junior Member
    from Denver
    Messages: 5

    So I have been working on an 1984 K20 with a Unimount Western plow. The plow wiring harness was already in place when it came to me.
    The problem I'm having is the box that has a terminal from the battery and a terminal going to the plow buzzes when moving the plow. I tightened down everything and replaced whatever looked questionable but the noise remains.
    Is this normal?
    Also, what is this junction box doing exactly?
    Heres what it looks like:

    Battery.jpg
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,926

    That's called a plow solenoid. If it's buzzing might need to replace it with another plow solenoid
    Also from the pic looks like there's some green fuzz on one of the small terminals. I hope you took the pic before you "replaced anything that looks questionable" cause you missed that
     
    Last edited: Sep 2, 2014
  3. Coloradosnoway

    Coloradosnoway Junior Member
    from Denver
    Messages: 5

    Well I ordered a new solenoid and put it on but the same thing happens. The plow moves really slow and the solenoid just clicks/buzzes. I took apart the old unit and there was very little corrosion. What else could cause this slow movement and clicking?
     
  4. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,926

    Connections, bad motor, bad wires, plow pins to tight, low fluid
     
  5. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,926

    What did you take apart?
     
  6. Coloradosnoway

    Coloradosnoway Junior Member
    from Denver
    Messages: 5

    I took apart the old solenoid. The connections looked fine.
    How does one diagnose a bad motor? Could I use jumper cables on the battery and tap the positive and negative terminals on the motor?
     
  7. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,926

    I was talking about the pic, looked like green fuzz on the small terminal
    Yes you can test like that,STAND CLEAR THO
    Have you used a volt meter? What's the alt output? How's the batt(s) and the charging system