The 12 had the battery saver light come on the other day.Pulled the battery as many said that is usually the problem.It was OE so new battery.Fired it up yesterday and great alt a like 14 volts.Wife drove today and no problem.She was leaving for work and just the battery light came on.Took her and started it again and its ok then battery light comes on.Checked voltage and was at like 14.2.then when lights on its like 12.2 nothing on and like 11.9 with lights on so its not charging.Went back out and started it again no light turn on light heater etc then after like a minute or so light comes on again..Alt looks like a pain to just remove to test.Any ideas?Rocky