charging system on 1990 Mercury Cougar

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?

by in Costa Mesa, CA on March 04, 2012
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1 answer 1 comment
ANSWER by , 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
COMMENT by , March 04, 2012