Charging system question

cult colt said
I have a '69 A-108 van (that's an A body right?). I did the standard battery/alternator test. Put the multi meter across the bat terminals. Engine off reads 13 volts. Engine running . still 13 volts What does this indicate? I know the voltage should go up with the engine running. Thanks.
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Plan and simple your charging system is dead.
Could be the alternator and/or the voltage regular.
Have the alternator tested at a competent shop, if it tests good you know the answer.
Assuming your wiring is correct and in good shape.
Good luck its not rockect surgery.