Just my opinion, don't take anything loose from the alternator, engine running. I'm not sure of vehicle model? Engine off, everything hooked up, take a reading at alternator bat terminal, take second reading at battery posts, the two readings should be very close to the same. You can, just take two readings at the battery posts. First reading, with everything turned off, second reading, engine running. If the charging system is ok, the second reading should be higher than the first.
Wednesday, March 24th, 2010 AT 9:31 AM