Quote:
Originally Posted by askmrjesus
Before you get too far into it, re-check the battery and do a load test. It may show 11.99999v on your multi-meter, but batteries are fucking liars and are not to be trusted.
Put the tester back on, then hit the starter switch. If the reading drops more than a couple of volts, the battery may have a bad cell (or 6...). If you do have some bad cells, you aren't going to get enough cranking amps to get the job done, and what your ass needs is a new battery.
JC
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Yep. This happened with my car. I was driving one evening this summer and turned on the lights and the car died. I thought the alternator was shot, but it was a bad cell in the battery. Apparently, the alternator in my car was fine, but simply doesn't put out enough juice to run the A/C compressor, cooling fan and lights all at the same time. Turning on the lights was all it took to kill the car.