Quote:
Originally Posted by jac
Thanks gents. I did not get a chance to get the splash guard and all that other stuff out of the way so I did not get to use the mirror to check the brand, but thanks for the photo, now I know what to look for!
I was however able to get the cluster tests to work. With engine OFF, test #9 says 116, which I assume means 11.6volts. With the engine ON, test #9 says 111 (or 11.1v).
The battery was fully charged 2 weeks ago and the car had been sitting in the garage without me messing with it for 2 weeks and I can't believe it has discharged the battery that much just sitting there. :-)
Now that the test showed me the low voltage while running, I am going to assume that means that alternator is bad and so will spend some time tomorrow removing the alternator.
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If the alternator is only putting out 11.1 volts running I'm surprised it runs. I wouldn't trust a battery test in a auto parts store. I've taken batteries in that would not charge that my battery charger said were bad and they tested ok in the parts store. You definitely have a bad alternator. Put in a new one and put the battery on a charger for 24 hours. After charging for 24 hours put a voltmeter on it and see what the battery is holding. If it's not holding 12.3 volts it may be bad as well.