My 98 dodge durango: My battery keeps going low by the amp meter when I use the lights, heater OR radio. When I turn them off, it goes back up. If I don't let it run before I turn it off, it will need a jump to start. What's wrong with it???? Autozone SAID by their little machine that the alternator and batter are both good. HELP!!
3 Answers
do test at different autozone. sometimes they dont do it right.
They may have tested it without any accessories turned on, not showing a problem. You can check this yourself if you have a digital multi-meter. Set it to DC volts, put positive & neg. across the battery posts with the vehicle running with the lights on, heater on. Voltage should read at least 14V to 14.5V at an idle. Rev the motor up a little to see if you get this voltage. If not there is a problem with the alternator or regulator.
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