Fluctuating voltage gage

Scoots said:

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

Click to expand...

Doubeleive said:

normal, unless it is dancing a jig while the blinker is on or something then it would be time to get a new battery

Click to expand...

Scoots said:

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

Click to expand...

2 pin 2006 + alternator. Don't throw it away!! - LS1TECH - Camaro and Firebird Forum Discussion

Conversions & Swaps - 2 pin 2006 + alternator. Don't throw it away!! - I just swapped the regulator in my alternator from 4 pin to 2 pin, so now it's like a 2006 or newer alternator. Why??? Because GM thinks it's better than the older 4 pin one and they must know something. Oh but everyone says...

ls1tech.com

Dixieman said:

Fluctuating voltage gage, sometimes at 14 then drops to 12. Do these alternators charge as needed or should they be charging 14 + all the time.

Click to expand...

donjetman said:

on the 07+ we have this regulating system (Regulated Voltage Control or RVC) that basically controls the alternator when it sees more/less drain on the battery.

Here's a thread about the RVC: https://www.tahoeyukonforum.com/threads/figured-out-how-to-keep-steady-voltage.59534/

Click to expand...