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Old 09-04-2020, 11:50 PM
Fifty150hs Fifty150hs is offline
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Quote:
Originally Posted by jac View Post
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.
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.
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