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  1. S

    Fluctuating voltage gage

    Thank You Any Idea if the 2012 5.3 alternator will fit 2004 since i have a spare now and the 2004 has 160,00 on original Alt
  2. S

    Voltage fluctuate ???

    is that the extremely loud noise? The AC on and off doesnt seem to make much noise but the fans Wholly Shit
  3. S

    Fluctuating voltage gage

    I'm under the impression that newer alternator/charging systems actually shut off when the power is not needed. Thus, the gauge will show 12v or lower and when on show a normal 13-14v. Was this confirmed? That would be great Thank You
  4. S

    Fluctuating voltage gage

    My 2012 Tahoe is also between 12-14+ I noticed on a road trip so replaced alternator since the Tahoe has 98,000 on it After replacing for the first 10 min 14+ then dropped again to 12-13 for a few minutes?

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