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Charging system

(1990 Mercury Cougar)
in Costa Mesa, CA on March 04, 2012
My volt meter sometimes is reading to high and then it goes back to normal.Can this be caused by a loose connection or bad wiring?or bad cells in the battery?
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Popular Answer
on March 04, 2012
yes it can. get a battery check from a shop and they will also test the alternator to verify the regulator is working as well.

Roy
on March 04, 2012
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