Alternator charging

[SpareParts]

I have a curious issue and it's the same on my sig rig and the wife's 2014 Avalanche, 5.3L
Been going on for months with the wife's truck and had to low of charge to start once a few weeks ago. Jump it and the gauge showed well past 14V for a while. Starting fine ever since.
I notice mine appears to not be charging sometimes but has always started. It does have a new 160A alternator
All battery/alternator connections appear tight and clean on both trucks.
The volt gauge usually shows a hair over 14V on the gauge when they are running. Sometimes they will show under 14V on the gauge. When the gauge shows under 14V i can still hear the alternator making that sound they do when charging.
This is intermittent and i have not been in a position to check voltage with a multimeter when i notice it happening
Until i can diagnose this when it's happening im unsure what it is.
If it was a bad battery it would get worse i believe. I refuse to believe 2 alternators are bad the exact same way with one being new.
Maybe bad connections but i can't find any loose, they all appear clean and none feel hot to the touch.

Anyone else have a problem like this?

 

[Fless]

Do some homework on "RVC." Maybe that's what's going on here.

07 tahoe 5.3 voltage randomly dropping

So my 07 tahoe LT has gone through 2 alternators in the last 3 months. The first one was the original from the factory, so I'm not too surprised on that one going out. The second was a remanufacterd duralast Delco alternator. And that one went out after 3 months. Have my 3rd one on it now, and...

www.tahoeyukonforum.com

 

[tom3]

Yeah, I like this RVC high tech charging system about as much as the AFM engine deal. I'm never sure f it's working correctly or if it just quit charging or overcharging a failing battery.