Hey guys, I'm new here. Quick question, I have a 99 2500 with a 6.0 in it I noticed that my voltage gauge has been reading anywhere from 14-17 volts? The other day at work I checked voltage at battery, alternator and the starter and they 3 read around 14.3-14.5 volts. But when im in the truck and looking at the gauge it's waaaayy off? Any ideas what I should do next?