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Old 11-27-2014, 01:53 PM   #7
Joe B
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Join Date: Dec 2012
Location: Jackson Hole, Wyoming
Posts: 800
As Steve

Quote:
Originally Posted by Timco View Post
Just check voltage with car running and batt unhooked to get alt voltage?
No, no, no! As Steve said, never disconnect the battery with the engine running. Excess juice fries diodes in the alternator. Just put the meter on the + and - terminals while the engine's running. This will tell what the alternator's putting out, but nothing about the condition of the battery. Load test it.
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