Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello, adding a draw would make you think the charging system is at fault. Does the battery ever go dead or the vehicle start slowly?
I would test the alternator for poor performance. It may be able to keep the vehicle running until you put a load on it. If the diodes are bad in the alternator this can cause the issue. A poor connection can also cause this with a lot of corrosion on the battery cables.