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dimming lights on HD75

Discussion in 'SnowDogg Snow Plows' started by mjg, Feb 13, 2015.

  1. mjg

    mjg Junior Member
    Messages: 15

    Hello guys, first post. The lights on my 02 gmc 1500 dim down alot when I operate any function of the plow. Is this normal, or do I have a motor/connection problem. Thanks for any help you can give me.
    Maurice
     
  2. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,966

    Define "a lot" What's the actual voltage numbers.
     
  3. mjg

    mjg Junior Member
    Messages: 15

    Dont know actual voltage, but on several occasions it drew it down so much it shut the truck off.
     
  4. dieselss

    dieselss PlowSite Fanatic
    Messages: 10,966

    Well, I'd start with a battery test and an alternator load test
     
  5. hedhunter9

    hedhunter9 Senior Member
    Messages: 212

    Your alternator is going out....
    Bob