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    jcbell083's Avatar
    jcbell083 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 21, 2013, 01:23 PM
    Yukon voltage drop
    Voltage gauge drop

    I have an 06 Yukon. While driving several miles I notice my voltage Gauge dropping below 12. If I do not keep my RPMs up while coasting to a stop the engine stalls, but restarts with no problem. I've changed the battery.
    odinn7's Avatar
    odinn7 Posts: 7,691, Reputation: 1547
    Entomology Expert
    		  
    #2

    Jan 21, 2013, 01:26 PM
    Have the alternator tested by a shop.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #3

    Jan 21, 2013, 01:31 PM
    The voltage regulator/brush assembly, located inside the alternator, likely needs to be replaced. Easy job for a DIYer.
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