charging

I'm pretty bad at diagnosing. I thought I had a bad alternator, and I replaced it to find it still won't charge, and my gauge on dash (that and fuel gauge are about only working gauges) shows it too. I don't know where to start. Circuits that control my AC blower, some gauges, power windows...

I've been chasing a intermittent charging issue for a couple weeks now and am now stuck with the truck not charging at all. Relevant history: Batteries are only a couple months old. At startup, randomly wouldn't charge. Finally stopped charging all together. Put a new alternator in, still not...

My truck didn't start yesterday, the batteries were showing about 9-1/2 volts. I charged it overnight, and today took it to O'Reilly's and they said my alternator was good (it's only about 2 years old and I replaced THAT dead alternator over the same concern, it was just dead one day.) My...

Hey all, I got my new-to-me truck just about two weeks ago. 2005 2500 CTD with 88,000 miles. Last weekend I was driving and everything was fine, then suddenly the "check gauges" light turned on and my voltmeter read 0 volts. The Truck was driving fine so I finished my drive. Hours later I go to...

HI has anyone had this warning light come up? I got this after stopping at a store for a few minutes and restarting. Voltage gage was at zero. I have a scan-gage monitor which displays voltage and it showed <14v and steadily dropped to below 12v as brake lights were used for the 10 min trip...