alternator
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I have a 2007 with a bttery issue now. about a month ago I replaced both Batteries. tonight I used my trailer winch to load my car. So on the way to the track the volt gauge shows no charging. The truck started fine a couple of times. then on the way home I got a dash light that said check gauges. got hm shut the truck off and wldnt start back up. so I put my battery charger on the truck and one of the batteries started smoking and boiling over. when I replaced the batteries the one that was bad then was on the same side of the truck but this was before using a winch. is it possible I damaged the battery using the winch. even so why would the gauge not show the alternator charging.