Possible electrical issue

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.

CiscoKid

TYF Newbie
Joined
Dec 10, 2021
Posts
13
Reaction score
32
Location
Virginia
2014 Yukon XL SLT. Whenever the vehicle is driven for more than about an hour I notice that the volt meter drops a good bit below 14 volts. None of my other GM vehicles do this (Corvette, Sierra dually). I don't notice it happening on short trips, like a grocery store run. Only on extended trips. I read the sticky on steady voltage - is this what I am experiencing? It concerns me enough that I took a photo of my gauge cluster.

Should I be concerned?

gauge.JPG
 

89Suburban

Bull in the china shop
Supporting Member
Joined
Jan 10, 2013
Posts
13,110
Reaction score
36,006
Location
SE PA
I don't like it either but yes that is normal to happen. Nothing to worry about.
 

Joseph Garcia

Supporting Member
Joined
Aug 2, 2018
Posts
6,512
Reaction score
8,512
Normal. Its part of the charging system that reduces the load on the alternator and battery, when the battery is fully charged and you are driving for longer periods of time.
 
OP
OP
C

CiscoKid

TYF Newbie
Joined
Dec 10, 2021
Posts
13
Reaction score
32
Location
Virginia
Thanks, guys. This is the first vehicle I've owned that did it. I was thinking I had a bum alternator. Makes sense that I only see it on the longer trips.
 

Forum statistics

Threads
129,207
Posts
1,812,154
Members
92,307
Latest member
Goodlife_chevy
Top