Alternator charging

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

SpareParts

Full Access Member
Joined
Sep 17, 2023
Posts
122
Reaction score
166
Location
North Idaho
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

Staff member
Super Moderator
Joined
Apr 2, 2017
Posts
11,870
Reaction score
24,133
Location
Elev 5,280
Do some homework on "RVC." Maybe that's what's going on here.

 

Forum statistics

Threads
132,321
Posts
1,865,948
Members
96,912
Latest member
Papaskip
Top