Over the past while I've noticed my voltage gauge on my 2008 LTZ is showing well under 14 volts while on the highway. Other times it is up well over 14V. I would say it is swinging from 12.5 up to 15 while the truck is running. Is this a sign of an alternator about to give up? I'm contemplating replacing it for insurance reasons, but I'm curious if fellow Avy owners have any knowledge on this subject.
If a replacement is warranted, do you have a suggestion? Amperage?
If a replacement is warranted, do you have a suggestion? Amperage?