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  1. #1

    Default 2000 Sub. 1500 LT Alternator Issues?

    My in dash voltage guage ocillates between 13 and 15 volts. This ocillation is very rapid approx. 1 time per second. When driving at night, the headlight, and dash light flicker at the same rate as the volt guage. The rate of the ocillation does not seem to very with engine speed. The ocillation sometimes goes away completely, and somtime lessens to only a 1/2 volt of fluctuation. I suspect the alternator is more than likely at fault. I have not have any issues with the battery not charging or failing to start. Has anyone seen this type of behavior? Thank you in advance if you are able to help.

  2. #2

    Default

    the voltage regulator in the alternator could be going out, may want to have it load tested at a shop

    2003 Z71 Silverado LS
    Access roll up cover
    Bed Rails
    Billet Grill insert
    Bed Rug
    CB with PA system
    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

  3. #3

    Default

    Quote Originally Posted by Z71_guy View Post
    the voltage regulator in the alternator could be going out, may want to have it load tested at a shop
    i 2nd that
    Scott-Mississippi
    1996 Silverado
    *Mostly stock for now
    *Soon to be airbag project..

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